Conference Session

Mechanics Division Poster Session

Collection

2007 Annual Conference & Exposition

Authors

Ing-Chang Jong, University of Arkansas

Tagged Divisions

Mechanics

beams in mechanics of ma-terials. They include the following:1-11 (a) method of double integration (with or without the useof singularity functions), (b) method of superposition, (c) method using moment-area theorems,(d) method using Castigliano’s theorem, (e) conjugate beam method, and ( f ) method using gen-eral formulas. Naturally, there are advantages and disadvantages in using any of the above meth-ods. By and large, the method of double integration is a frequently used method in determiningslopes and deflections, as well as statically indeterminate reactions at supports, of beams. With-out use of singularity functions, the method of double integration has an advantage of needing aprerequisite in mathematics only up to simple calculus

Conference Session

What's New in the Mechanics of Materials?

Collection

2007 Annual Conference & Exposition

Authors

Andrea Surovek, South Dakota School of Mines and Technology

Tagged Divisions

Mechanics

illustrate the difference between contextual problems and those lacking context,consider a potential mechanics of materials problem: A shaft is subjected to the torque shown. Find A the shear stress developed in the shaft and the angle of twist at point A relative to point B. B Figure 1 A basic torsional shear stress problem in mechanics of materialsThe problem does not tell the students anything about the source of the torque, the likely use ofthe shaft, or anything else that might allow then to place some context on why it might bevaluable to know the shear stress or angle of twist. Even if the

Conference Session

Innovative Mechanics Education Programs and Projects

Collection

2007 Annual Conference & Exposition

Authors

Phillip Cornwell, Rose-Hulman Institute of Technology; Charles Farrar, Los Alamos National Laboratory; Peter Avitabile, University of Massachusetts-Lowell

Tagged Divisions

Mechanics

Conference on Structural Dynamics, Kissimmee, Florida, Feb. 2001.15. Granier, J.J., R.J. Hundhausen, G.E. Gaytan, “Passive Modal Damping with Piezoelectric Shunts,” Proceedings of the 20th IMAC Conference on Structural Dynamics, Los Angeles, CA, Feb. 2002.16. Kess, H.R., N.J. Rosnow, B.C. Sidle, “Effects of Bearing Surfaces on Lap Joint Energy Dissipation,” Proceedings of the 20th IMAC Conference on Structural Dynamics, Los Angeles, CA, Feb. 2002.Biomechanics17. Crowell, B.L., B. A. Stalcup, D. W. Stinemates, “Design of Personal Air Bag Spinal Protection Device,” Proceedings of the 19th IMAC Conference on Structural Dynamics, Kissimmee, Florida, Feb. 2001.18. Giardini, S., D. Laney, A.C. Rutherford, C.R. Farrar, “Monitoring Femoral

Conference Session

Innovative Mechanics Education Programs and Projects

Collection

2007 Annual Conference & Exposition

Authors

James Morgan, Texas A&M University; Luciana Barroso, Texas A&M University

Tagged Divisions

Mechanics

outdiscussions about damping, and how while no physical element looks like a dashpot in the realsystem, some mechanism for energy loss needs to be incorporated into the models being built. Page 12.541.4 (a) (b) Figure 1. Demonstration of Free-Vibration Response and Coordinate System SelectionOnce they have finalized their model and created a sketch of the time-history of the response, aclarifying “experiment” like that shown in Figure 2a is done. This leads to a class discussion ontheir assumption of the deflection initially being “straight down,” which may not be the case, andhow the

Conference Session

Internet Delivery of Mechanics Courses

Collection

2007 Annual Conference & Exposition

Authors

Kurt Gramoll, University of Oklahoma

Tagged Divisions

Mechanics

Page 12.154.6(b) TheoryAfter introducing the case study, the theory required for solving the case study is presented. Thetheory part has extensive use of the interactive media such as texts, graphics, sounds, andanimations for illustration purposes. This is extremely beneficial to engineering education ascomplex models and abstract concepts or theories can be illustrated easily using these bettervisualization techniques. Figure 3 shows a typical theory page. Torsion of circular bars is thetopic of discussion in this particular module. As seen in the figure, texts, diagrams, pictures,animations and equations are all incorporated to illustrate the theory. Although each module ofthis eBook is written and developed as a stand-alone module, links

Conference Session

Mechanics Division Poster Session

Collection

2007 Annual Conference & Exposition

Authors

Ing-Chang Jong, University of Arkansas; Joseph Rencis, University of Arkansas

Tagged Divisions

Mechanics

Indeterminate Reactions and Deflections of Beams Using Model Formulas: A New ApproachAbstractThis paper is intended to share with educators and practitioners in mechanics a new approachthat employs a set of four model formulas in analyzing statically indeterminate reactions at sup-ports, as well as the slopes and deflections, of beams. The model formulas, in algebraic form, arederived using singularity functions. They are expressed in terms of (a) flexural rigidity of thebeam; (b) slopes and deflections, as well as shear forces and bending moments, at both ends ofthe beam; and (c) applied loads on the beam. The types of applied loads include: (i) concentratedforce and moment; (ii) uniformly distributed moment; and (iii) linearly varying

Conference Session

Improving Mechanics Courses

Collection

2007 Annual Conference & Exposition

Authors

Timothy Mays, The Citadel; Kevin Bower, The Citadel; Kyle Settle, The Citadel; Blake Mitchell, The Citadel

Tagged Divisions

Mechanics

rolling asshown in Figure 1. Figure 1. Rolling Wheel Used to Illustrate Various Types of Problems Used to Assess Knowledge of Key Concepts in Dynamics. Page 12.1541.4Traditional ProblemFor the wheel shown in Problem 1, the wheel’s radius is 2 ft, the instantaneous velocity at thecenter of the wheel is 4 ft/s to the right. Express the velocity of points A and B as vectors usingthe coordinate system indicated on the figure.DCI Type ProblemFor the wheel shown in Problem 1, what is the direction of the velocity of point B at the instantshown if the wheel is rolling to the right without slipping?(A) Straight Down (B

Conference Session

Internet Delivery of Mechanics Courses

Collection

2007 Annual Conference & Exposition

Authors

Peter Boyle, Saint Mary's University

Tagged Divisions

Mechanics

. E-Lecturespresented an opportunity for the instructor to impart a personal imprimatur to the ePAC, asillustrated in Fig. 4. Although content inevitably followed the textbook, problem solvingtechniques, nomenclatures and mathematical techniques were the instructor’s choice. We define the DOT PRODUCT as A●B = A*B*cos(φ) with the RHS being a SCALAR – hence the optional name for this operation being “SCALAR PRODUCT”. A = Ax i + Bx j + Bz k : B = Bx i + By j + Bz k so A●B = (Ax i + Bx j + Bz k ) ● (Bx i + By j + Bz k) with i●i = 1 etc., and i●j = 0 etc., then A●B = AxBx + AyBy + AzBz = AB cos(φ) therefore φ = cos -1 (A●B/AB) = cos -1 ((AxBx + AyBy + AzBz)/(AB)) this is useful for finding an angle between

Conference Session

Improving Mechanics Courses

Collection

2007 Annual Conference & Exposition

Authors

Amir Rezaei, California State Polytechnic University-Pomona; Mariappan Jawaharlal, California State Polytechnic University-Pomona; Kyu-Jung Kim, California State Polytechnic University-Pomona; Angela Shih, California State Polytechnic University-Pomona

Tagged Divisions

Mechanics

will and how we will gather or produce those materials.LEARNING MODULE PLANLearning Module plan consisted of an overview of the course projection plan which contained: a) course goals, a broad statements indicating what the students will learn from the course. b) course objectives, descriptions of measurable outcomes that students should be able to demonstrate upon completion of the course c) course rationale, brief justification of why the students need to learn this course material. and d) module outline, description of how the course content will be grouped.LEARNING UNIT PLANLearning unit plan is a component of the Learning Module Plan which consist of: a) module name, module under which the learning unit is grouped

Conference Session

What's New in the Mechanics of Materials?

Collection

2007 Annual Conference & Exposition

Authors

Julie Linsey, University of Texas-Austin; Austin Talley, University of Texas--Austin; Daniel Jensen, U.S. Air Force Academy; Kristin Wood, University of Texas-Austin; Kathy Schmidt, University of Texas-Austin; Rachel Kuhr, University of Texas-Austin; Saad Eways, Austin Community College

Tagged Divisions

Mechanics

surveys. Photoe la stic Be a m Be nding: Expe cte d Gra de vs. Q10 "I likie d doing this a ctivity." U S AFA S pring 06 5 4 3 2 1 0 A B C Expe cte d Gra de in Cla ss Figure 16: Expected grade v.s. Survey question 10, “I liked doing this activity.” USAFA Spring 06 (n=28, 21, 8 respectively

Conference Session

Innovative Mechanics Education Programs and Projects

Collection

2007 Annual Conference & Exposition

Authors

Jean Nocito-Gobel, University of New Haven; Gregory Broderick, University of New Haven; Samuel Daniels, University of New Haven; Michael Collura, University of New Haven; Richard Stanley, University of New Haven

Tagged Divisions

Mechanics

but the data does indicate animproved trend. These preliminary indicators suggest that EAS students are as prepared as theirpeers who took traditional courses. Performance of students in the junior level mechanicscourses will continue to be monitored and collected for assessment.References1. Collura, M.A., B. Aliane, S. Daniels, and J. Nocito-Gobel, “Development of a Multi-Disciplinary EngineeringFoundation Spiral”, Proceedings, 2004 American Society for Engineering Education Annual Conference andExposition, Salt Lake City, Utah, June 20 – 23, June 2004.2. Foundation Coalition Website: http://www.foundationcoalition.org/home/sophomore/index.html

Conference Session

What's New in the Mechanics of Materials?

Collection

2007 Annual Conference & Exposition

Authors

Karim Muci-Küchler, South Dakota School of Mines and Technology; Lidvin Kjerengtroen, South Dakota School of Mines and Technology

Tagged Divisions

Mechanics

AC 2007-1374: A NEW APPROACH FOR TEACHING IN-PLANE PRINCIPALSTRESSES, PRINCIPAL DIRECTIONS AND MAXIMUM SHEAR STRESS FORPLANE STRESSKarim Muci-Küchler, South Dakota School of Mines and Technology Dr. Karim Muci-Küchler is an Associate Professor of Mechanical Engineering at South Dakota School of Mines and Technology. Before joining SDSM&T, he was an Associate Professor of Mechanical Engineering at the University of Detroit Mercy. He received his Ph.D. in Engineering Mechanics from Iowa State University in 1992. His main interest areas include Computational Mechanics, Solid Mechanics, and Product Design and Development. He has taught several different courses at the undergraduate and graduate level

Conference Session

Innovative Teaching Techniques in Mechanics

Collection

2007 Annual Conference & Exposition

Authors

Rick Williams, East Carolina University; William Howard, East Carolina University

Tagged Divisions

Mechanics

AC 2007-1174: A VERSATILE AND ECONOMICAL APPARATUS FOREXPERIMENTS IN STATICSRick Williams, East Carolina University Rick Williams is an Assistant Professor of Engineering at East Carolina University. Prior to joining ECU, he was a faculty member and Associate Research Professor at Auburn University. Williams has sixteen years of industrial experience in design and project engineering functions. He received BS and MS degrees from Georgia Tech, and his PhD degree from Auburn University. Williams is a registered Professional Engineer in Virginia.William Howard, East Carolina University William E.(Ed) Howard is an Assistant Professor of Engineering at East Carolina University. Prior to

Conference Session

Innovative Teaching Techniques in Mechanics

Collection

2007 Annual Conference & Exposition

Authors

Christopher Papadopoulos; Josh Bostwick, Cornell University; Andrew Dressel, University of Wisconsin-Milwaukee

Tagged Divisions

Mechanics

we believe is important in developing student problem-solving skillsis the systematic organization of equations. In traditional problems in undergraduateStatics and Dynamics, the basic governing equations (  F ? ma CM and  M / O ? H % ) /Ogenerally yield a system of linear equations. State variables such as reactions, internalforces, and accelerations at particular instants can appear in various combinations asgiven or unknown quantities. Depending on what is given and what is unknown, directtranscription of the governing equations in the standard “Newton” form does notnecessarily yield the standard linear form Ax = b, in which all of the unknown

Conference Session

Innovative Teaching Techniques in Mechanics

Collection

2007 Annual Conference & Exposition

Authors

Rungun Nathan, Villanova University

Tagged Divisions

Mechanics

conversations withstudents, particularly with those who did very well in the initial assessment; it is plannedto implement this technique in a more formal manner in the next academic year alongwith well instrumented surveys to evaluate the success of DI in a undergraduatemechanics class.1. Tomlinson, C. & Kalbfleisch, L. (1998, November). Teach me, teach my brain: A call for differentiated classrooms. Educational Leadership, 52-55.2. Tomlinson, C.A., & Allan, S. D. (2000). Leadership for differentiating schools and classrooms. Alexandria, VA: ASCD.3. Fischman, B. (as viewed on Jan 17, 2007) http://www.education.pitt.edu/leaders/FAQ/differentiatedinstruc.htm4. Felder, R. M. (as viewed on Mar 7, 2007) http://www.ncsu.edu

Conference Session

Improving Mechanics Courses

Collection

2007 Annual Conference & Exposition

Authors

Ghodrat Karami, North Dakota State University; Robert Pieri, North Dakota State University

Tagged Divisions

Mechanics

the displacement.Therefore, the energy in a molecular system is: Est ? Â K st ( Rm / R0 m ) 2 where, Kst = stiffness 1 m 2constant, R = bond length and Ro = equilibrium bond length. Also, other types of bondingenergies can be formulated in similar forms as a multiplication of associated stiffness times the 1deformation. For example the energy due to bending is written as Eb ? Â K b (s m / s 0 m ) 2 where, m 2Kb is the bending

Conference Session

Mechanics Division Poster Session

Collection

2007 Annual Conference & Exposition

Authors

Wayne Johnson, Armstrong Atlantic State University; Priya Goeser, Armstrong Atlantic State University

Tagged Divisions

Mechanics

,these problems were modified to utilize computational modeling techniques and presented asprojects to the students in the Computational Modeling course. The students worked in groupsof two on these projects. Page 12.957.4The first problem was taken from the Statics course textbook8. Based on Figure 1, the studentsdeveloped a MATLAB program to study the variation in M0 due to T=120 lbs as the position ofpoint B varies from (0,0,0) to (0,14,0). Figure 2 shows a plot of the variation in the x, y and zcomponents of M0 vs. the y-coordinate of point B. Figure 1. Variation of moment problem taken from Meriam and Kraige8

Conference Session

Mechanics Division Poster Session

Collection

2007 Annual Conference & Exposition

Authors

Raghu Echempati, Kettering University

Tagged Divisions

Mechanics

following questions: a) Did you receive my e-mail while you were at work? If not, why? b) Did you read and understand the contents of this e-mail? c) Do you think that this e-mail information is important to you? Why? Why not? d) Did you attempt to read the Statics review material that was e-mailed to you? Why? Why not? e) Has the Statics review material helped you to remember and to better understand the material covered when you took the Statics class? f) Did you attempt to solve or practice the sample questions e-mailed to you? g) Did you order the Solids textbook, and if so, did you get a chance to start

Conference Session

What's New in Dynamics?

Collection

2007 Annual Conference & Exposition

Authors

L. Glenn Kraige, Virginia Tech; Imran Akhtar, Virginia Tech; Saurabh Bisht, Virginia Tech

Tagged Divisions

Mechanics

. Page 12.244.7References[1] Flori, R. E., Koen, M. A., and Oglesby, D. B., “Basic Engineering Software for Teaching (“BEST”) Dynamics”, ASEE Journal of Engineering Education, 1996, pp. 61-67.[2] Philpot, T. A., Oglesby, D. B., Flori, R. E., Yellamraju, V., Hubing, N., and Hall, R. H., “Interactive Learning Tools: Animating Mechanics of Materials”, 2002 ASEE Annual Conference Proceedings, Montreal, Canada, June 2002.[3] Gramoll, K. and Abbanat, R., “Interactive Multimedia for Engineering Dynamics”, 1995 ASEE Annual Conference Proceedings, Anaheim, CA, June 1995.[4] Hubing, N. and Oglesby, D. B., “Animating Statics: Flash in the Classroom”, ASEE Midwest Section Conference, Manhattan, KS, March 2001.[5] Rezaei, A

Conference Session

Internet Delivery of Mechanics Courses

Collection

2007 Annual Conference & Exposition

Authors

Douglas Carroll; Hong Sheng, University of Missouri

Tagged Divisions

Mechanics

ispresented. They are able to use their lecture notes when studying. Students are able to workmore challenging problems on the exams. Written comments received from the students at theend of the semester are very positive about this lecture method. Working with the high qualitygraphics during class makes the lecture more enjoyable for both the faculty and the students.The students learning experience with this lecture process is more beneficial and rewarding thanthe experience in a traditional classroom.References:[1] Anderson, R. (2004) Beyond Powerpoint: Building a New Classroom Presenter, Campus Technology, 6/1/2004, http://www.campustechnology.com/article.asp?id=9537.[2] Niederman, F. and Rollier, B. (2001) How are you going to keep

Conference Session

Improving Mechanics Courses

Collection

2007 Annual Conference & Exposition

Authors

Madhukar Vable, Michigan Technological University; William Kennedy, Michigan Technological University

Tagged Divisions

Mechanics

Richter scale and lastedfor a duration of 500 to 600 seconds. It was so large that it caused the entire planet to vibrate with anamplitude reaching over half an inch. The quake released an amount of energy equal to a 100 gigatonbomb. It was the second largest earthquake ever recorded by seismographs. Earthquakes are caused when built up stresses along the fault lines are suddenly released. Faultlines are boundaries of tectonic plates. Tectonic plates are large segments of earth crust that float on topof the earth magma and lock up along the fault lines. Fig.1 shows the three basic types of earthquakemovements. A combination of these basic movements is used in explanation of earthquakes. (a) (b

Conference Session

Innovative Mechanics Education Programs and Projects

Collection

2007 Annual Conference & Exposition

Authors

William Howard, East Carolina University; Rick Williams, East Carolina University

Tagged Divisions

Mechanics

AC 2007-858: AN INTRODUCTORY ENGINEERING DESIGN PROJECTUTILIZING FINITE ELEMENT ANALYSIS AND RAPID PROTOTYPINGWilliam Howard, East Carolina University William E.(Ed) Howard is an Assistant Professor of Engineering at East Carolina University. Prior to joining ECU, he was a faculty member and program coordinator at Milwaukee School of Engineering. Howard has fourteen years of industrial experience in design and project engineering functions. He received BS and MS degrees from Virginia Tech, and his PhD from Marquette University. Howard is a registered Professional Engineer in Wisconsin.Rick Williams, East Carolina University Rick Williams is an Assistant Professor of Engineering at East

Conference Session

What's New in the Mechanics of Materials?

Collection

2007 Annual Conference & Exposition

Authors

Arturo Fuentes, University of Texas-Pan American; Stephen Crown, University of Texas-Pan American

Tagged Divisions

Mechanics

shear and moment diagrams. Students were provided with the basic platform for thegame but created their own shear and moment diagrams along with the logic for the solution.The games of individual students were compiled in a multilevel game that proved beneficial tostudent learning. The feedback based on student input in the games allows the students to learnand apply new concepts simultaneously. The impact of the games and the student involvementin the game design process have been positive as evidenced by performance on exams andpositive feedback on surveys. Students are motivated to get involved in the game design processby the fact that their work is being evaluated by their peers and that it has some useful purposethat will continue to

Conference Session

What's New in Dynamics?

Collection

2007 Annual Conference & Exposition

Authors

Phillip Cornwell, Rose-Hulman Institute of Technology

Tagged Divisions

Mechanics

AC 2007-40: HISTORY AND TRIVIA TO ENLIVEN DYNAMICSPhillip Cornwell, Rose-Hulman Institute of Technology Phillip Cornwell is a Professor of Mechanical Engineering at Rose-Hulman Institute of Technology. He received his Ph.D. from Princeton University in 1989 and his present interests include structural dynamics, structural health monitoring, and undergraduate engineering education. Dr. Cornwell has received an SAE Ralph R. Teetor Educational Award in 1992 and at Rose-Hulman he has received the Dean’s Outstanding Teacher award in 2000 and the Board of Trustees Outstanding Scholar Award in 2001

Conference Session

Internet Delivery of Mechanics Courses

Collection

2007 Annual Conference & Exposition

Authors

Paul Steif, Carnegie Mellon University; Anna Dollar, Miami University

Tagged Divisions

Mechanics

AC 2007-363: AN INTERACTIVE WEB-BASED STATICS COURSEPaul Steif, Carnegie Mellon UniversityAnna Dollar, Miami University Page 12.224.1© American Society for Engineering Education, 2007 AN INTERACTIVE WEB-BASED STATICS COURSEAbstractProgress in developing a web-based Statics course through foundation support is reported. Thiscourse is part of a larger initiative that seeks to create and sustain freely available, cognitivelyinformed learning tools designed to provide a substantial amount of instruction through thedigital learning environment. Courses are interactive and self-correcting, by providingsubstantial feedback both to students and to instructors. The Statics course

Conference Session

Innovative Mechanics Education Programs and Projects

Collection

2007 Annual Conference & Exposition

Authors

Pramod Chaphalkar, Grand Valley State University; David Blekhman, California State University Los Angeles

Tagged Divisions

Mechanics

AC 2007-1938: INTRODUCING FINITE ELEMENT ANALYSIS IN THE FIRSTCOURSE OF STATICS AND SOLID MECHANICSPramod Chaphalkar, Grand Valley State University Dr. Chaphalkar received his M.S. degrees in Mechanical Engineering from Indian Institute of Technology, Mumbai (Bombay), and Ph.D. degree in Mechanical Engineering from North Carolina A&T State University. He has worked in Bajaj Auto, India and General Motors, US. He has industrial experience in the analysis and design of various vehicle components; testing and experiments; finite element modeling and analysis; development of engineering software; and training; vehicle crash simulations; interface with suppliers, consultants and universities. Dr