Conference Session

Instrumentation Technical Session

Collection

2013 ASEE Annual Conference & Exposition

Authors

Andrew Hoff, University of South Florida; Richard Gilbert, University of South Florida

Tagged Divisions

Instrumentation

Paper ID #7856Instrumentation to Facilitate Learning in a First Bio-potentials CourseDr. Andrew Hoff, University of South Florida Dr. Andrew Hoff is a Professor of Electrical Engineering in the College of Engineering at the University of South Florida. His research and educational focus explores bio-electric phenomena and the processing and characterization of material surfaces. He has developed educational materials for high school science and math curricula with funding provided by the National Science Foundation.Dr. Richard Gilbert, University of South Florida Dr. Richard Gilbert is a professor of Chemical and

Conference Session

Embedded Control and Instrumentation

Collection

2012 ASEE Annual Conference & Exposition

Authors

Gerald Thomas Ruch, University of Saint Thomas

Tagged Divisions

Instrumentation

AC 2012-4634: THE IMPACT OF BUILDING A ROBOTIC OBSERVA-TORY ON ENGINEERING STUDENTSDr. Gerald Thomas Ruch, University of Saint Thomas Gerald Ruch received his Ph.D. in astrophysics at the University of Minnesota in 2008. He is currently an Assistant Professor in the Physics Department at the University of St. Thomas in St. Paul, Minn. His primary research interests are computational astrophysics, data mining large scientific data sets, and observational astronomy. Page 25.1309.1 c American Society for Engineering Education, 2012 The Impact of Building A Robotic Observatory on

Conference Session

Instrumentation and Measurement: Innovative Courses

Collection

2008 Annual Conference & Exposition

Authors

John Marshall, University of Southern Maine

Tagged Divisions

Instrumentation

AC 2008-1898: THE ULTIMATE CAP STONE COURSE: A LABORATORY BASEDPROBLEM SOLVING DESIGN PROJECTJohn Marshall, University of Southern Maine JOHN MARSHALL’s specialization is Industrial Power and Automation, focusing on active/intelligent materials and advanced control systems. Grants have enabled him to design and equip a state-of-the-art power and control problem solving learning environment. Page 13.1276.1© American Society for Engineering Education, 2008 The Ultimate Capstone Course: A Laboratory Based Problem Solving Design ProjectIntroductionThe purpose of this paper is to provide

Conference Session

Instrumentation and Measurements: Innovative Course Development

Collection

2006 Annual Conference & Exposition

Authors

David Farrow, University of Tennessee-Martin

Tagged Divisions

Instrumentation

2006-38: DEVELOPMENT OF AN INSTRUMENTATION AND EXPERIMENTALMETHODS COURSE AND LABORATORY FOR A BSE PROGRAMDavid Farrow, University of Tennessee-Martin David Farrow is an Assistant Professor at the University of Tennessee at Martin. He received B.S. and M.S. degrees in Mechanical Engineering and a Ph.D. degree from the University of Texas at Arlington in 1989, 1990, and 1995, respectively. Dr. Farrow has taught courses in solid modeling, mechanical vibrations, automatic controls, automated production systems, and instrumentation and experimental methods at the University of Tennessee at Martin for three and a half years

Conference Session

Developing New Instrumentation

Collection

2006 Annual Conference & Exposition

Authors

Radian Belu, Wayne State University

Tagged Divisions

Instrumentation

2006-1152: DEVELOPMENT AND IMPLEMENTATION OF ACOOPERATIVE/DISTRIBUTED INSTRUMENTATION AND MEASUREMENTLABORATORY FOR DIVERSE-STUDENT POPULATIONRadian Belu, Wayne State University Radian Belu is Assistant Professor at the College of Engineerig, Wayne State University, Detroit, USA. He hold a PhD in Physics and the other in Power Engineering. Dr. Belu published over 55 papers in referred journals and conference proceedings. His research interests include power engineering, atmosphere physics, radar and remote sensing, physics and engineering education. Page 11.448.1© American Society for Engineering Education

Conference Session

Instrumentation Division Technical Session 1

Collection

2019 ASEE Annual Conference & Exposition

Authors

Luis Alberto Rodriguez, Milwaukee School of Engineering; Daniel Williams, Milwaukee School of Engineering; Michael D. Cook, Milwaukee School of Engineering

Tagged Divisions

Instrumentation

Paper ID #25787Development of a Motion Control Laboratory Focusing on Control Designand Fluid Power EducationDr. Luis Alberto Rodriguez, Milwaukee School of Engineering Dr. Luis A. Rodriguez is an assistant professor in the Mechanical Engineering Department at the Milwau- kee School of Engineering (MSOE). He completed his doctoral training at the University of California- Irvine where he was a National Science Foundation Bridge to the Doctorate Fellow. He completed his master’s degree at the University of Wisconsin-Madison where he was a GEM fellow and Graduate Engi- neering Research Scholar. He also holds a bachelor’s

Conference Session

Computer-based Measurements

Collection

2012 ASEE Annual Conference & Exposition

Authors

Bridget M. Smyser, Northeastern University; Kevin McCue, Northeastern University

Tagged Divisions

Instrumentation

AC 2012-3291: FROM DEMONSTRATION TO OPEN-ENDED LABS: RE-VITALIZING A MEASUREMENTS AND ANALYSIS COURSEDr. Bridget M. Smyser, Northeastern University Bridget M. Smyser is an Assistant Academic Specialist and Director of Laboratories, Department of Mechanical and Industrial Engineering .Kevin McCue, Northeastern University Page 25.655.1 c American Society for Engineering Education, 2012 From Demonstration to Open Ended: Revitalizing a Measurements and Analysis CourseAbstractThe course entitled Measurements and Analysis with Thermal Science Application is a requiredcourse

Conference Session

Effective Projects and Experiments in Instrumentation and Control

Collection

2011 ASEE Annual Conference & Exposition

Authors

Herbert L. Hess, University of Idaho, Moscow

Tagged Divisions

Instrumentation

AC 2011-2532: AUTOMATED BATTERY CHARGER INSTRUMENTATIONINTERFACE FOR MULTIPLE INTERCONNECTED BATTERY STRINGSAS A STUDENT PROJECTHerbert L. Hess, University of Idaho, Moscow Herbert L. ’Herb’ Hess received the PhD degree from the University of Wisconsin - Madison in 1993. He then joined the University of Idaho where he is Professor of Electrical Engineering. His work is in power electronic converters, great and small, alternative energy systems, power quality, energy storage electronics, and on-chip designs of energy management systems. In ASEE, he is currently Program Chair of the Instrumentation Division and is immediate past chair of the ECE Division and a past chair of the ECC Division

Conference Session

Instrumentation Division Technical Session 2

Collection

2017 ASEE Annual Conference & Exposition

Authors

Shameel Abdulla, Texas A&M University at Qatar; Yasser M. Al Hamidi, Texas A&M University at Qatar; Abdulla Mohamed Baobeid, Texas A&M University at Qatar; Reza Tafreshi, Texas A&M University at Qatar

Tagged Divisions

Instrumentation

Paper ID #19153Introducing Micro-Positioning Experimental Setup in Mechanical Engineer-ing CurriculumMr. Shameel Abdulla, Texas A&M University at Qatar Shameel Abdulla is currently working as a Technical Laboratory Coordinator in the Mechanical Engineer- ing Program at Texas A&M University at Qatar. He joined the MEEN program in December 2012. He is responsible for coordinating experiments in the Controls and Measurements labs. Shameel’s professional interests include Product Design, Control System Design, and Mechatronics. He is a former student at Texas A&M University at Qatar.Mr. Yasser M. Al Hamidi, Texas A

Conference Session

Instrumentation Division Technical Session 2

Collection

2019 ASEE Annual Conference & Exposition

Authors

Akram Hossain, Purdue University Northwest; Mohammad A. Zahraee P.E., Purdue University Northwest

Tagged Divisions

Instrumentation

Paper ID #25978Experiential Learning of Students through Prescriptive Laboratory Experi-ments Versus Open-ended Laboratory AssignmentsProf. Akram Hossain, Purdue University Northwest Akram Hossain, Purdue University Calumet Akram Hossain is a professor in the department of Engi- neering Technology and Director of the Center for Packaging Machinery Industry at Purdue University Calumet, Hammond, IN. He worked eight years in industry at various capacities. He is working with Purdue University Calumet for the past 27 years. He consults for industry on process control, packag- ing machinery system design, control and related

Conference Session

Instrumentation Division Technical Session 1

Collection

2018 ASEE Annual Conference & Exposition

Authors

Akram Hossain, Purdue University Northwest; Mohammad A. Zahraee, Purdue University Northwest

Tagged Divisions

Instrumentation

Paper ID #21368Virtual Software and Hardware Environment Provides Enhanced Learningfor Mechatronics Engineering Technology MajorsProf. Akram Hossain, Purdue University Northwest Akram Hossain, Purdue University Calumet Akram Hossain is a professor in the department of Engi- neering Technology and Director of the Center for Packaging Machinery Industry at Purdue University Calumet, Hammond, IN. He worked eight years in industry at various capacities. He is working with Purdue University Calumet for the past 27 years. He consults for industry on process control, packag- ing machinery system design, control and related

Conference Session

Instrumentation Division Technical Session 3

Collection

2015 ASEE Annual Conference & Exposition

Authors

Ventzislav Karaivanov, Colorado School of Mines; Jeffrey A. Holley P.E., Colorado School of Mines

Tagged Divisions

Instrumentation

, Engineering Vibrations, Multidisciplinary Engineering Laboratory. • American Society of Mechanical Engineers • American Society of Engineering EducationProf. Jeffrey A. Holley P.E., Colorado School of Mines Jeffrey Holley, PE received a BS in Engineering from Colorado School of Mines in 1988, a MBA from the University of Colorado in 1993, and a MS in Environmental Science and Engineering from the Colorado School of Mines in 2011. As a practicing civil engineer registered in 14 western states his specialties include planning and construction document preparation for grading, drainage, infrastructure utility, and storm water quality enhancement design. As an instructor at CSM he has had the opportunity to teach Water and

Conference Session

Projects in Instrumentation and Control

Collection

2012 ASEE Annual Conference & Exposition

Authors

Akram Hossain, Purdue University, Calumet; Tanima Zaman, Purdue University Calumet

Tagged Divisions

Instrumentation

AC 2012-3605: HMI DESIGN: AN ANALYSIS OF A GOOD DISPLAY FORSEAMLESS INTEGRATION BETWEEN USER UNDERSTANDING ANDAUTOMATIC CONTROLSProf. Akram Hossain, Purdue University, Calumet Akram Hossain is a professor in the Department of Engineering Technology and Director of the Center for Packaging Machinery Industry at Purdue University Calumet, Hammond, Ind. He worked eight years in industry at various capacities. He is working with Purdue University Calumet for the past 24 years. He consults for industry on process control, packaging machinery system control, and related disciplines. He is a Senior Member of IEEE. He served in IEEE/Industry Application Society for 15 years at vari- ous capacities. He served as chair of

Conference Session

Instrumentation Division Technical Session 1

Collection

2014 ASEE Annual Conference & Exposition

Authors

David R. Loker, Pennsylvania State University, Erie; Stephen A. Strom, Penn State Behrend

Tagged Divisions

Instrumentation

Paper ID #9275Virtual Joystick Control of Finch RobotProf. David R. Loker, Pennsylvania State University, Erie David R. Loker received the M.S.E.E. degree from Syracuse University in 1986. In 1984, he joined General Electric (GE) Company, AESD, as a design engineer. In 1988, he joined the faculty at Penn State Erie, The Behrend College. In 2007, he became the Chair of the Electrical and Computer Engineering Technology Program. His research interests include wireless sensor networks, data acquisition systems, and communications systems.Mr. Stephen A. Strom, Penn State Behrend Stephen Strom joined the faculty of Penn

Conference Session

Instrumentation Division Technical Session 1

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

David R. Loker, Pennsylvania State University, Erie; Stephen A. Strom, Pennsylvania State University, Erie

Tagged Topics

Diversity

Tagged Divisions

Instrumentation

Paper ID #29072Programmable System-On-Chip (PSoC) Usage in Embedded ProgrammingCoursesProf. David R. Loker, Penn State Erie, The Behrend College David R. Loker received the M.S.E.E. degree from Syracuse University in 1986. In 1984, he joined General Electric (GE) Company, AESD, as a design engineer. In 1988, he joined the faculty at Penn State Erie, The Behrend College. In 2007, he became the Chair of the Electrical and Computer Engineering Technology Program. His research interests include wireless sensor networks, data acquisition systems, and communications systems.Mr. Stephen A. Strom, Pennsylvania State University

Conference Session

Instrumentation Division Technical Session 1

Collection

2014 ASEE Annual Conference & Exposition

Authors

Asad Yousuf, Savannah State University; Mohamad A. Mustafa, Savannah State University; Claire Cynthia Lehman, Bill's Robotic Solutions

Tagged Divisions

Instrumentation

Paper ID #9278Electric Circuit Analysis in MATLAB and SimulinkDr. Asad Yousuf, Savannah State UniversityDr. Mohamad A. Mustafa, Savannah State UniversityMr. William Lehman, Bill’s Robotic Solutions William Lehman is President of Bill’s Robotic Solutions which he started in July of 2013. He has had over twenty years of experience in software and hardware development. He has worked on numerous projects in digital communication systems, robotics, and aerospace applications. For the past seven years he has taught technology education mainly at the high school level. Mr. Lehman received his Bachelor of Science degree in

Conference Session

Instrumentation Division Technical Session 3

Collection

2016 ASEE Annual Conference & Exposition

Authors

Asad Yousuf, Savannah State University; Claire Cynthia Lehman, Bill's Robotic Solutions; Mohamad A. Mustafa, Savannah State University; Mir M. Hayder, Savannah State University

Tagged Topics

Diversity

Tagged Divisions

Instrumentation

Paper ID #14789Low-Cost Robot Arms for the Robotic Operating System (ROS) and MoveItDr. Asad Yousuf, Savannah State UniversityMr. William Lehman, Bill’s Robotic Solutions William Lehman is President of Bill’s Robotic Solutions which he started in July of 2013. He has had over twenty years of experience in software and hardware development. He has worked on numerous projects in digital communication systems, robotics, and aerospace applications. Mr. Lehman received his Bachelor of Science degree in Electrical Engineering in 1979 from Catholic University of America.Dr. Mohamad A. Mustafa, Savannah State University

Conference Session

Modern Software Measurement Techniques

Collection

2007 Annual Conference & Exposition

Authors

Gangbing Song, University of Houston; Claudio Olmi, University of Houston; Richard Bannerot, University of Houston

Tagged Divisions

Instrumentation

+ - of Polarity (a) (b) Figure 5: Piezoceramic Poling Process: Before (a) and After (b)To pole the piezoceramic, a strong electric field (> 2000 V/mm) is applied to the heatedpiezoceramic material, inducing the material to expand along the axis of the field and contractperpendicular to the axis (Figure 5(b)). After the material cools and the field is removed, theWeiss domains roughly remain in alignment. As a result, the material now has its own polaritywhich can be degraded by exceeding the mechanical, thermal, and electrical limits of thematerial. Subsequently, there is a growth in the direction parallel to the polarization and acontraction in the direction

Conference Session

Instrumentation Division Technical Session 1

Collection

2018 ASEE Annual Conference & Exposition

Authors

Herbert L. Hess, University of Idaho; Sean Gordon Daniel, University of Idaho

Tagged Divisions

Instrumentation

inefficiency. This brings a demand for a timing light circuit capable of using an LED.The issue with using an LED is its inability to allow current flow in both directions or when thevoltage falls below the forward bias voltage drop Vf b . The new LED timing light circuit should Figure 1: Conventional single phase timing light circuitbehave the same as the conventional timing light where the current through the LED peaks whenthe phase is equal to 180 degrees.MethodsFirst looking at a single phase model, the two main issues with using LED are: • current can only flow in one direction • current can only flow when the voltage across the LED VLED is greater than Vf bIn order to keep the voltage above Vf b a biasing DC voltage

Conference Session

Instrumentation Division Technical Session 2

Collection

2018 ASEE Annual Conference & Exposition

Authors

Ali Alavizadeh, Purdue University Northwest; Maged Mikhail, Purdue University Northwest

Tagged Divisions

Instrumentation

. • Lab 2: Doing Lab 1 with two cylinders and a timer • Lab 3: Operating two cylinder with a limit switchThese three new labs will be added to the existing pneumatic labs which help the instructor teachautomation in pneumatics during the lecture portion.Lab 1: Introducing PLC and input/output modules and how to control a cylinderThe objective of this lab activity is for students to apply what they have learned in the lecture tobuild a pneumatic circuit using a double-acting cylinder, a PLC, and a control valve. They willlearn about how to wire and write a ladder logic program using Automation Studio for a PLC toextend and retract the push rod using one input and one output. For programing purpose, B&R’sAutomation Studio [3] will be used

Conference Session

Instrumentation Division Technical Session 2

Collection

2019 ASEE Annual Conference & Exposition

Authors

Avimanyu Sahoo, Oklahoma State University; Young Chang, Oklahoma State University

Tagged Divisions

Instrumentation

help students to opt for NI’s certificationprograms, i.e., Certified LabVIEW Associate Developer (CLAD) examination.In the first lab session, students are familiarizedwith the concept of virtual instrument (VI) anduse of front panel and block diagram structureof the LabVIEW graphical programming lan-guage. A review of the control and function pal-let with associated controls, indicators, nodesand functions is carried out. The main focus of Figure 2 (a): Front panel for running LED light.this session is to understand the data flow con-cept of LabVIEW and use numeric, Boolean, Figure 2 (b): LabVIEW block diagram for running LED lights.and comparison function pallets to write and execute mathematical expressions. Students

Conference Session

Instrumentation and Measurements: Innovative Course Development

Collection

2006 Annual Conference & Exposition

Authors

Hong Zhang, Rowan University; Courtney Richmond, Rowan University; Ying Tang, Rowan University; Patricia Mosto, Rowan University

Tagged Divisions

Instrumentation

‘mini-observation station’ or ‘video Page 11.1101.4probe’. It is shown working on the coast of Florida conducting an experiment with thebiologists studying seagrass populations in the summer 2005. (A) (B) Figure 3: The first generation IMAPS agent system – the Torpedo. Figure 4: The second generation IMAPS agent – the Video Probe. The mechanical design was finalized at the third generation, a pontoon-style doublehull surface vehicle. Figure 5A is a 3-D CAD rendering of the design. With a moderatesize (1m x 1m x 0.4m), the agent provides a fair amount of payload

Conference Session

Instrumentation Division Business Meeting

Collection

2008 Annual Conference & Exposition

Authors

Kayode P. Ayodele, Obafemi Awolowo University; Olutola Jonah; Olusoji Ilori, Obafemi Awolowo University; E.O.B. ajayi, Obafemi Awolowo University, Nigeria; Oladipo O. Osasona, Obafemi Awolowo University, Ile-Ife, Nigeria

Tagged Divisions

Instrumentation

architecturesthat are suited to such low-bandwidth scenarios is the Batched version of the MIT iLabArchitecture 1, 2, 3, 4, 5. The iLab Batched architecture is referred to as “iLab-B” in this paper todistinguish it from the iLab Interactive architecture. The iLab-B architecture separates thevarious parts of a VL in such a way that only a very small amount of data needed to configurethe remote system under test needs to go through the low-bandwidth uplink, while all other datalab-related activities are done locally. As a result, the MIT iLab-B architecture was an idealplatform upon which to base the development of a new Operational Amplifier virtual laboratory(“OpAmp Lab”) hosted at Obafemi Awolowo University, Nigeria.II. Architecture OverviewOpAmp Lab

Conference Session

Instrumentation Division Technical Session 1

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Peter Mark Jansson, Bucknell University; Peter Sawirs Kaladius, Bucknell University

Tagged Topics

Diversity

Tagged Divisions

Instrumentation

inertia than how it is perceived and described presently. “Concerning the problem of therelativity of inertia, B. Friedlaender further notes that inertia, i.e. the resistance to changes in thevelocity, is not an internal property of a single body but rather a consequence of the influence ofall the other bodies of the universe.” [9] Previous scientific research raised significant interest inE. Mach’s thoughts about how inertia is influenced by all matter [10-12]. According to mostwidely accepted theory, inertial properties are equal against any force from any direction sincethe universe is isotropic in matter distribution at large scales, and hence it would be nearlyimpossible to test this theory because of the difficulty of detecting any

Conference Session

Instrumentation Division Technical Session 1

Collection

2017 ASEE Annual Conference & Exposition

Authors

Masoud Fathizadeh P.E., Purdue University, Calumet (College of Technology)

Tagged Divisions

Instrumentation

tabulated in the following tables. Table1: Project I- Solar Energy Design Internship Project: Solar Energy Implementation Student Assessment of Student Outcome Proposed ABET Criterion Satisfied: a, b, c, d, f, and g Student Feedback (Composite Target Score = 3.00) Student Outcomes Matched to ABET (a,, b, c,, d, e, f and g) Excellent Good Acceptable Pass

Conference Session

Instrumentation Division Technical Session 3

Collection

2015 ASEE Annual Conference & Exposition

Authors

Herbert L. Hess, University of Idaho, Moscow

Tagged Divisions

Instrumentation

objectionable difference in the quality of their soldering. Of course,failure to solder a board together earned an immediate grade of zero. To date, few have failed toshow up for class without a soldered and working Minty Boost®.Students are instructed to make the following adjustments to the Minty Boost® assemblyinstructions: a) Only solder in one end of the inductor to the board. We will be making current measurements in the inductor. b) Do not solder in the 2xAA battery holder so that tests can be performed on the Minty Boost® assembly. Instead, solder on leads to the holes marked + and -. These will be used later to connect a DC Power supply to perform various tests on the Minty Boost® USB charger.Instruction a

Conference Session

Novel Measurement Experiments

Collection

2006 Annual Conference & Exposition

Authors

Henrik Åkesson, Blekinge Institute of Technology; Lars Hakansson, Blekinge Institute of Technology; Ingvar Gustavsson, Blekinge Institute of Technology; Ingvar Claesson, Blekinge Institute of Technology; Johan Zackrisson, Blekinge Institute of Technology; Thomas Lago, Acticut Inernational AB

Tagged Divisions

Instrumentation

anexperimental modal analysis of the boring bar is shown in Fig. 6. These results werecaptured from the screen when conduction experiment via the client PC. In Fig. 6 a) is aFrequency Response Function (FRF) estimate presented and in Fig. 6 b) thecorresponding coherence function. a) b)Figure 6. Screen shoots of the client PC showing in a) a frequency response function estimate after afrequency response measurement and in b) the corresponding coherence function estimate. Page 11.1428.9Saving DataOne great advantage with this client compared to the previous version is the possibilityto

Conference Session

Embedded Control and Instrumentation

Collection

2012 ASEE Annual Conference & Exposition

Authors

John Y. Hung, Auburn University; Victor P. Nelson, Auburn University; Clint S. Cole, Digilent, Inc.; Alex Wong, Digilent, Inc.

Tagged Divisions

Instrumentation

tools to design, implement, and test an embedded control system. Elements of the system include a user interface (keypad), analog signal conditioning (sensor), and power electronics (amplifier) to drive an actuator. System elements are integrated via a microcontroller module[2] and its associated software. Students design, create and integrate hardware and software to simultaneously meet several performance specifications. Throughout the engineering processes, students regularly conduct experiments to measure and collect data about their system. Computer aided design tools include: (a) CodeWarrior integrated design environment[3] (IDE) for HCS12 microcontroller[4] system design, (b) Mathworks® MATLAB™ and SIMULINK™ for data

Conference Session

Contemporary Instrumentation Poster Session

Collection

2007 Annual Conference & Exposition

Authors

Scott Shepard, University of Central Florida

Tagged Divisions

Instrumentation

-assurance era.”What the Physicists Do With Entangled PhotonsThe word “entangled” implies more than just correlation (however entangled photons willexhibit correlation in their measurement statistics). Systems A (or Alice) and B (or Bob) areentangled if their state vector is not a simple product, i.e., if it cannot be written in the form:(state of A)a times (state of B)b. Now taking (+) to represent the state of “spin up” along z and(-) to represent “spin down” – the only two possible spin states of an electron, an example of anentangled state is: (+)a (-)b + (-)a(+)b. If we ask “what is the spin of A?” the answer is – well itcould be up or down, depending on if we “draw” the first or second term respectively when wemeasure it’s state. However, we

Conference Session

Novel Measurement Experiments

Collection

2007 Annual Conference & Exposition

Authors

Seyed Allameh, Northern Kentucky University; Tom Ogonek Ogonek, Northern Kentucky University; Paul Cooper, Northern Kentucky University

Tagged Divisions

Instrumentation

respect to the plates, a uniform shear stress occurs across the plates.The steady state inelastic response that commences at a shear stress of 40 MPa continues until Page 12.1338.2fracture at 8% strain. The main role of inelasticity is its insensitivity to localized deformationsites that causes premature failure.The robustness of nacre arises from four design principles as postulated by He et al.1. These are:a) morphology which is optimized to maximize inelastic strain, b) nanoscale asperities that causemechanical interlocking at the interface; sufficient adherence of ceramic layers by the bond layerand d) lubrication provided by the polymer1. A