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2005 GSW

Authors

Yavuz S. Tunc; Malur N. Srinivasan

Session Number: F2D2 Teaching Mechanical Engineering Undergraduates about Nanomaterials Malur N. Srinivasan and Yavuz S. Tunc Department of Mechanical Engineering Lamar University, Beaumont, TX 77710 ABSTRACTNanomaterials have attracted enormous attention in the recent years. They have small featuresize (crystallite size) in the range of 1-100 nm and are structurally quite distinct from traditionalcrystalline materials whose feature size may extend from several micrometers to severalmillimeters, and traditional amorphous materials, which

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2005 GSW

Authors

Paul R. Corder

. Figure 1: Cantilevered Beam Two analytical approaches for estimating the stress response are the commonlyused Strength of Materials (“SoM”) approach10 and the more advanced Theory ofElasticity (“ToE”) approach11. In the bending stress equations below for any point (x, y)in the beam, P is the end load, E is the Young’s modulus, ν is Poisson’s ratio, and I is themoment of inertia of the cross-section. Strength of Materials: σb = − My =− ( Px ) y I I8 Calculation is a mechanism only and does not imply

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2005 GSW

Authors

Kenneth Van Treuren

data1.” How does one achieve such a desirable end? Traditionally,lecture format courses have been taught but these may not be the best way to achieve thedesired result.2,3 Most universities have blended lectures with a more hands onapproach.4-6 At Baylor University, mechanical engineering majors have two significantlaboratory courses. The first is a materials laboratory in the spring of their senior yearthat covers the basics of materials testing; hardness, stress and strain. The course is athree credit hour course with two hours of lecture and three house of lab. Students areexposed to collecting data and writing lab reports, but at this level, they do not do error Proceedings of the 2004 ASEE Gulf-Southwest Annual Conference

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2005 GSW

Authors

Richard Bannerot

the more these are practiced the better. A Hands-On Experience: The Drive Train ProjectIn the Fall 2003 the students were given the following statement of work, summarizedbelow, as one of their two minor projects: The discipline of mechanical engineering consists of two main, yet overlapping, branches: the thermal-fluids branch and materials-mechanics branch. A large part of the thermal-fluids branch is associated with the production of mechanical power (actually, energy conversion). A large part of the materials-mechanics branch is related to the mechanical transformation and translation of this power by “machines.” These machines are composed of interconnected groups of individual “machine elements”. These elements

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2005 GSW

Authors

Tariq A. Khraishi

theultimate form since it is a replica of real engineering practice. It is worth noting that PBL isalready existent in many engineering curricula, most notably through senior design courses andeven materials science/engineering14. In addition, there are at least two works that explained theuse of finite-element analysis (FEA) to better explain concepts in introductory mechanics ofmaterials courses15,16.This paper discusses an effort by the author in conducting a PBL class project in a junior-levelFEA course, using the ANSYS software, at the University of New Mexico (UNM). This was thesecond time that the author has taught the class and the first in which he assigned such class Proceedings of the 2005 ASEE Gulf-Southwest Annual

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2005 GSW

Authors

Charles D. Parker; B. Neal Whitten

those students which areplanning on going into field engineering positions. Students that prefer the morepractical careers may not relate well with the more theoretical professor, but instead, mayprefer someone with more practical type experience that can relate the in class theory toindustrial examples.Unfortunately, many professors who excel at research and theoretical engineering havenot had the experience of working in the types of jobs many of their students aspire toobtain, and may not be able to relate their knowledge in a manner that appeals to amajority of their students because of this lack of experience. One mechanism forobtaining this practical type experience is educators and municipalities working togetherfor mutual benefit

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2005 GSW

Authors

Raviganesh Singh; Matthew Siik; Ioana C. Finegan; Gowri V. Kumar

;M University-Corpus Christi Copyright © 2005, American Society for Engineering Educationconcluded that the “VBT (Vibrating Beam Technique) Material Measurement System”offers the most satisfactory results. VBT instrumentation was purchased recently byCentral Michigan University. Much of the recent attention in nanocomposites research has been directed towardsthe use of carbon nanotubes as reinforcement. However, vapor grown carbon fibers(VGCF) are a separate class of carbon nanofibers, which are different from other types ofcarbon nanofibers in their method of production, their unique physical characteristics,and the prospect of low-cost fabrication. Due to the good mechanical, thermal, andelectrical properties of

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2005 GSW

Authors

Harovel G. Wheat

went aboutdeveloping a student code of ethics and honor, the honor code itself, and futureimplementation of that honor code.HAROVEL G. WHEATDr. Wheat serves as Associate Professor in the Mechanical Engineering Department at the University ofTexas at Austin. Her research interests include the corrosion of structural materials; particularly reinforcedconcrete, metal matrix composites, and polymer composites. Prof. Wheat is a registered ProfessionalEngineer in the state of Texas. She is Undergraduate Advisor and Associate Chair for Academic Affairs. Proceedings of the 2005 ASEE Gulf-Southwest Annual Conference Texas A&M University Corpus Christi Copyright © 2005

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2005 GSW

Authors

W.N.P. Hung; H-J. Sue; B.R. Varadharajan

. VARADHARAJANBalaji is a graduate student at the Department of Mechanical Engineering at Texas A & M University. Hisresearch interests include stress/strain analysis and finite element methods.WAYNE N.P. HUNGDr. Hung currently serves as an Associate Professor of the Department of Engineering Technology &Industrial Distribution, and the Department of Mechanical Engineering at Texas A&M University. He is amember of ASPE, and SME. His research interests include advanced materials and micro/nanomanufacturing.HUNG-JUE SUEDr. Sue a Professor at Department of Mechanical Engineering at Texas A&M University. Dr. Sue'sresearch interests include nanocomposites and advanced polymers. Proceedings of the 2005 ASEE Gulf-Southwest Annual

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2005 GSW

Authors

W.N.P. Hung; M.M. Agnihotri; J. Wang

have been developed. In these the polymer matrix is reinforcedwith highly oriented fibers of the same material by a solid state extrusion process. As thematrix and the fibers are of the same material, their interface possesses high adhesivestrength. Such self reinforced composites display substantially higher mechanical strengthand toughness9. Polymer Bone Strength Time Figure 1: Variation of strength of biodegradable polymer and bone with healing time7Currently available biodegradable fixation methods are mostly thread based. Commerciallyavailable biodegradable screws like Arthrex, Bioscrew, Endo

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2005 GSW

Authors

Yesh P. Singh; Peggy L. Talley

theblades are exposed to high temperatures and high rotational centrifugal forces, resultingin high stresses. As a result, the blade shrouds often crack during service and canfracture, which can lead to the failure of the turbine. The design modification of a typicalblade shroud was the subject of a major design project in the course “Finite ElementApplications in Mechanical Design,” ME 4603, at the University of Texas at SanAntonio. A study of currently used shroud configurations was conducted, and severalmodifications were investigated. Gas Turbine Materials Associates in San Antonio,Texas, provided a typical shroud, containing a partial airfoil. Careful measurements weremade, and a solid model was generated in Pro/E. This solid model was then

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2005 GSW

Authors

Ross Kastor; Robert Askew; Richard Bannerot; Paul Ruchhoeft; Elena Poltavtchenko; Colley Hodges; Chad Wilson; Cari-Sue Wilmot

Session F2D1 Advances in Technical Communications in the Cullen College of Engineering at the University of Houston Chad Wilson, Director Technical Communications Across the Curriculum Paul Ruchhoeft, Assistant Professor Department of Electrical and Computer Engineering Ross Kastor, Lecturer Richard Bannerot, Professor Department of Mechanical Engineering Cullen College of Engineering Colley Hodges, Program Manager

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2005 GSW

Authors

Roop Chanda; Mohammed E. Haque

and tunnel structural projects of various cityand state governments and private sectors. Dr. Haque is a registered Professional Engineer in the states of NewYork, Pennsylvania and Michigan, and members of ASEE, ASCE, and ACI. Dr. Haque received a BSCE fromBangladesh University of Engineering and Technology, a MSCE and a Ph.D. in Civil/Structural Engineering fromNew Jersey Institute of Technology, Newark, New Jersey. His research interests include fracture mechanics ofengineering materials, composite materials and advanced construction materials, computer applications in structuralanalysis and design, artificial neural network applications, knowledge based expert system developments,application based software developments, and buildings

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2005 GSW

Authors

Thomas J. Krueger; Ronald E. Barr

Session F1A2 The Feasibility of Teaching FEA in a Freshman Engineering Graphics Course Thomas J. Krueger and Ronald E. Barr Department of Mechanical Engineering The University of Texas, Austin, TX 78712 ABSTRACTIn the freshman Introduction to Engineering Design and Graphics course, the students areintroduced to various solid-modeling techniques, including simple solid modeling, solid modelassemblies, dimensioning, and sectioning. Along with these basic graphics fundamentals, thestudents are

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2005 GSW

Authors

Pradeep Bhattacharya; Nikhil Modi; Fred Lacy

. IntroductionTraditionally, students of crystallography, semiconductor physics, and mechanics ofcrystalline materials, have struggled to visualize the complex geometries and structuresassociated with crystals. Pure and doped silicon, diamond, gallium arsenide and othermaterials, are commonly used and studied at electrical engineering departments incolleges and universities throughout the world. Several properties of these materials,especially semiconductors, are dependant on crystal orientation and the direction exposedto thermal, optical or chemical treatment. These crystal structures are comprised ofatoms bonded together in a specific order.Undergraduate students studying the crystallography of silicon are often faced with thetask of visualizing specific planes

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2005 GSW

Authors

Suketu Shah; Mohammed E. Haque; Gaurav Agarwal

of various city and state governmentsand private sectors. Dr. Haque is a registered Professional Engineer in the states of New York, Pennsylvania andMichigan, and members of ASEE, ASCE, and ACI. Dr. Haque received a BSCE from Bangladesh University ofEngineering and Technology, a MSCE and a Ph.D. in Civil/Structural Engineering from New Jersey Institute ofTechnology, Newark, New Jersey. His research interests include fracture mechanics of engineering materials,composite materials and advanced construction materials, computer applications in structural analysis and design,artificial neural network applications, knowledge based expert system developments, application based softwaredevelopments, and buildings/ infrastructure/ bridges/tunnels

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2005 GSW

Authors

Amir Karimi

of Sciences and Mathematics (Mathematics was changed to Engineering in 1983)in September of 1982 offering Bachelor of Science (BS) degree programs in Civil, Electrical,and Mechanical Engineering (CE, EE, and ME). The first student in engineering programsgraduated in May of 1984 and all three programs received their first ABET accreditation in 1986.Master of Science degree programs in CE, ME, and EE began in the Fall of 1989. In Spring2000, the academic restructuring of the university resulted in the partition of the College ofSciences and Engineering into two separate colleges: College of Engineering and College ofSciences. Three departments were formally established in Fall 2001, replacing the old Programstructure. A PhD program in

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2005 GSW

Authors

M.K. Balasubramanya

various professional ethical issues in a unifiedframework. Structure and content of the courseThis 3 credit hour course is split every week equally between a lecture section taught by aphilosopher, and a discussion section led by a faculty member from the college pertinentto the student's major. The Science and Technology discussion section is composed ofstudents majoring in biology, biomedical sciences, nursing, chemistry, geology,geographic information science, mathematics, control systems engineering technology,and mechanical engineering technology. The course objective1 is to " acquire some levelof understanding of a variety of issues in moral theory and various moral problems thatarise in professional practice and life

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2005 GSW

Authors

Kevin M. Nickels

mainprogrammable hardware used for the course. Design entry using graphical components is done inthe beginning of the course, with the majority of the projects utilizing VHDL (Very High SpeedHardware Hardware Description Language). Projects relate directly to the course material, andinclude a VGA (Video Graphics Array - video game, a 10-instruction simple computer, and a line-following robot. The course ends with case studies of contemporary digital designs. In this paper,the topics added and dropped are described, along with potential and actual repercussions onstudent learning. Background and Context of CourseTrinity University is a small private liberal arts and sciences University in San Antonio Texas.The Engineering Science

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2005 GSW

Authors

Daniel J. Burroughs

. Therefore, it is necessary toeducate students not only in the technical aspects of security, but also in the situation-dependent way that it is applied. Such an education would provide students with theskills needed to enter the field and the in-depth understanding to be upwardly mobile. Tothis end, the curriculum is being developed to provide a mix of both technical skills andbroad knowledge. This is present both in the course material, and our commitments toutilizing the strengths UCF has to offer (National Center for Forensic Studies, PublicSafety Technology Center, etc.) and developing tight integration with other departments(Criminal Justice, Business, etc.). Additionally, all of the courses in this program aremade available through the FEEDS

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2005 GSW

Authors

Rosa Jeanette De Leon; Randall D. Manteufel; Alfred Vitela

Session F2C1 Evaluation of LEED Green Building Rating Potential for the Engineering Building at the University of Texas at San Antonio Rosa Jeanette De Leon, Alfred Vitela, Randall D. Manteufel Department of Mechanical Engineering and Biomechanics University of Texas at San Antonio AbstractThe U.S. Green Building Council in October 2004 issued the Leadership in Energy andEnvironmental Design for Existing Buildings, a green building rating system for existing buildingswhere previously criteria has been only for new building

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2005 GSW

Authors

Aiman S. Kuzmar, City of Corpus Christi, TX

Session F2A3 Learning by Teaching: an Alternative Teaching Approach in Engineering Education Aiman S. Kuzmar Penn State Fayette, the Eberly Campus Uniontown, Pennsylvania AbstractAn alternative teaching approach was carried out in the Engineering Mechanics-Statics class,which is a second year undergraduate engineering course, at Penn State Fayette, The EberlyCampus. The new approach deviated from the universally followed format of continuouslecturing by the instructor and

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2005 GSW

Authors

Thomas J. Krueger; Ted Aanstoos; Ronald E. Barr

Session T3A3 Promoting Program Outcomes Early in the Engineering Curriculum Ronald E. Barr, Thomas J. Krueger, and Ted Aanstoos Mechanical Engineering Department University of Texas at Austin AbstractProgram outcomes are the knowledge, skills, and abilities that students should be able todemonstrate at the end of a degree program. ABET requires that accredited engineeringdepartments must define a set of program outcomes, publicize them broadly to all constituents,and put into place a process for

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2005 GSW

Authors

Pete Hylton

program risks, greatly reduces the chance of failure.Once he began teaching full time, one of the classes that the author was responsible forwas the Capstone Design Class for his department. During the course of the firstsemester, it became obvious that the students would benefit from development of somesort of connectivity between all the various topics that they had studied in the four yearsleading up to their last semester. TRM was an obvious mechanism for accomplishingthis. Each semester since, the author has introduced TRM concepts in the class, and hasrequired the design teams to perform a full technical risk analysis of their design project.This has forced them to recall material from their previous classes and integrate it intoboth their

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2005 GSW

Authors

W. Roy Penney; Nathaniel S. Weston; Megan V. Park; Edgar C. Clausen; Dave C. Marrs; Anthony M. Scalia

for CHEG 3143, HeatTransport, and CHEG 3232, Laboratory II, junior level chemical engineering studentswere required to perform simple heat transfer experiments using inexpensive materialsthat are readily available in most engineering departments. The design, implementationand analysis of two of these experiments are described in this presentation.The thermal conductivities of polycarbonate, polystyrene and plywood were individuallydetermined by sandwiching the test material between three 1 ½ in x 12 in x 18 inaluminum plates. After the center plate was heated to 70-80°C, the “sandwich” wasassembled and insulated on all sides. The temperatures of the center plate and one of theouter plates were measured with time and used to calculate the rate

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2005 GSW

Authors

Tim Coppinger; Hesham Shaalan

experiments utilizing arobot and Computer Numerical Control (CNC) machines. The robot was designed to emulate anindustrial robot. The open structure of the robot arm allows students to observe and learn aboutits internal mechanisms. The robot is a vertical articulated robot, with five revolute joints. With agripper attached, the robot has six degrees of freedom. This design permits the end effector to bepositioned and oriented arbitrarily within a large workspace. This paper describes theManufacturing Automation course as well as the use of the robot to teach the course. IntroductionRobots are different from any industrial machine, and the potential of the robot as an agent ofchange in manufacturing has not

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2005 GSW

Authors

Wendy Otoupal; Pete Hylton

Session T3B1 Combining Engineering and Mathematics in an Urban Middle School Classroom Pete Hylton Mechanical Engineering Technology Department Purdue School of Engineering and Technology Indiana University / Purdue University at Indianapolis Wendy Otoupal Middle School Mathematics Key Learning Community Indianapolis Public Schools AbstractMinority and female students are

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2005 GSW

Authors

Terry Creasy; Richard B. Griffin

challenge of the project was to develop a link that held thehighest load for the least weight. Students designed a link, made a rapid prototyped pattern, castthe component, prepared it for testing, and tested the link in a universal testing machine. Studentsused SolidWorks to design the link, and they were required to make a minimum of threecalculations for failure and predict the failure load and location. The cast material was Al 356.The group that developed a link with the highest load to weight ratio took advantage of the factthe Al 356 alloy may be precipitation hardened.Introduction With the impetus from ABET, the faculty, and former students to include more designwithin the curriculum, the Materials Division within Mechanical

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2005 GSW

Authors

M. M. Darwish; M. H. Akram; B. L. Green

complement each of theirrespective talents. The Power Train, Mechanical, and sensors groups had complementaryand mentoring student groups with a leader emerging in each group as the semesterprogressed. The leader was not necessarily the mentor. The actuator group was full of lessthan cooperative “lone rangers” students. The “lone rangers” were not the best studentsand in general did not benefit from the efforts or leadership of the better students on theteam.MTEC CourseThe course is designed for juniors in MTEC program. Class consists of three hours lectureand three hours non-credit lab. The main objective of this course is to provide thefundamental knowledge to understand important concepts in materials engineering andtheir applications in

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2005 GSW

Authors

Jim Farison

thistype and outlines the solution that the author has developed that proved successful in that specificsituation. It is provided with the expectation that the solution may also be applicable to otherinstructors in other places with different subjects, but with similar circumstances.Baylor University is a private university, located in Waco, Texas. Baylor offers accredited B.S.degree programs in Electrical and Computer Engineering, Mechanical Engineering, andEngineering, and is currently graduating about 45 students per year, primarily from and aboutequally divided between ECE and ME, plus a couple of Engineering majors each year. Lastsummer, Baylor also initiated a graduate program, with traditional research-oriented M.S. programsin Biomedical