Design a New Set of Strength Labs for the Course, 'Mechanics of Materials'

Le, Xiaobin; Olia, Masoud; Moazed, Ali Reza; Roberts, Richard L.

doi:10.18260/p.26655

Cited by 4 publications

(6 citation statements)

References 2 publications

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“…Prerequisite courses teach the use SolidWorks to create models and drawings starting in their freshman year including simple analysis using FEA in courses such as Engineering Statics, Mechanics of Materials and Design of Machine Elements. In Mechanics of Material course during their sophomore year, they conducted three finite element simulation labs [10] in which they treated the SolidWorks simulation as a virtual instrument and used it to simulate and visualize stress/strain of bars under axial loading, shafts under torsion and beams under lateral force and bending. In Design of Machine Elements course in their junior year, they used SolidWorks simulation to simulate and visualize the stress and strain of components with irregular shapes.…”

Section: The Brief Description Of Mech4200-simulation-based Designmentioning

confidence: 99%

“…There were many ways to introduce FEA software to students. One of the common ways was to let students gradually learn FEA software, including introducing the FEA software during engineering statics in their sophomore year [8,9] , mechanics of materials in their sophomore year [9,10,11] and design of machine elements in their junior year [12,13,14] . Finally, a full course in finite element analysis was offered for junior or senior engineering students [1~7] .…”

Section: Introductionmentioning

confidence: 99%

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Teaching Finite Element Analysis for Mechanical Undergraduate Students

Le¹,

Roberts²,

Duva³

2019 ASEE Annual Conference &Amp; Exposition Proceedings

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Section: The Brief Description Of Mech4200-simulation-based Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Teaching Finite Element Analysis for Mechanical Undergraduate Students

Le¹,

Roberts²,

Duva³

2019 ASEE Annual Conference &Amp; Exposition Proceedings

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“…In the course MECH2500-Mechanics of Materials, tensile tests were conducted on an Instron Universal Testing machine to obtain a stress-strain curve. From the curves, typical mechanical properties such as Young's modulus, yield strength, ultimate strength could be obtained [1] . Frequently, students ask two questions: "Why are there some differences between the mechanical properties obtained through their tensile tests and the book values?…”

Section: Introductionmentioning

confidence: 99%

The Sagan Research Project for Exploring Statistical Parameters of Typical Mechanical Properties

Le¹,

Roberts²,

Connors³

et al.

2017 ASEE Annual Conference &Amp; Exposition Proceedings

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The involvement of undergraduate students in research is very important for engineering education. Research can not only significantly enhance student engagement and enrich student learning experience, but it is also useful as a tool to enhance undergraduate engineering education. However, it is a big challenge for a small teaching institution to do this because most of the faculty don't have funded research projects, their primary job is teaching a full load. In addition, some frequently raised questions from lectures or labs could be used as research projects for undergraduate students in the teaching institute. Tensile test labs were used for obtaining stress-strain curves in the MECH2500-Mechanics of Materials course to observe material behaviors under tensile load and to obtain some typical mechanical properties of materials, such as Young's modulus, yield strength, and ultimate strength. Some undergraduate students in mechanical engineering majors frequently asked why the results of the same materials under the same type of equipment and same test procedure were different when they conducted the tensile tests on an Instron universal test machine. In spring 2016, to help the students find answers by themselves, a research project was initiated with heavy student involvement to explore statistical parameters of typical mechanical properties. This team includes 3 faculties from two different departments, one staff from the Strength Test Center and several students. After one-year's work, 4 sets of test data had been obtained by the student research team and can be used to answer their questions. This paper will describe and present in detail the research activities. In the research, students implemented what they learned in classrooms to the research, designed and manufactured specimens, created test procedures, ran tensile tests, wrote test reports and conducted data analysis. Through the research, students gained hands-on research experience and had a better understanding of the mechanical properties and their statistical descriptions of materials. Some students showed great interest in doing research in future. Through this research, it was shown that some fundamental common questions or topics raised by the students during their courses can be used as undergraduate research projects. Students benefit greatly from such research projects.

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“…Various publications address the fact that students will have a much better understanding of a topic if the same topic was presented to students in different ways [4,5,6] . Conducting physical fatigue testing demonstrates to students that specimens will not fail in the first loading application but will fail after a number of repeated cycles.…”

Section: Introductionmentioning

confidence: 99%

“…The addition of physical test demonstrations significantly improved students' understanding of fatigue theory [7,8,9] . Numerical simulation tools such as FEA (Finite Element Analysis) programs have become a wonderful and necessary tool for mechanical engineers and students [4,10,11,12] . FEA software was also frequently implemented in classrooms to conduct fatigue analysis [12~15] to help students visualizing fatigue analysis.…”

Section: Introductionmentioning

confidence: 99%

An Integrated Active Learning Approach for Understanding Fatigue Theory

Roberts

Duva

et al.

2018 ASEE Annual Conference &Amp; Exposition Proceedings

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It is well known that more than 90% of metal components in mechanical systems fails due to fatigue. With this in mind, a basic working understanding of fatigue theory is very important to mechanical engineering students. Fatigue theory, however, is only covered with a few lectures in a typical undergraduate mechanical engineering program's curriculum. Typical treatment could be as few as four lectures during two weeks in our mechanical program at Wentworth Institute of Technology. Because of this, some students were typically confused about fatigue theory and might not have a basic working understanding of fatigue theory. Students will typically develop a better understanding of a topic if the same topic is presented to students in different ways. To facilitate the development of a basic working understanding of fatigue theory, we proposed an integrated active learning approach for teaching fatigue theory. This included four different exposures to discuss and explore fatigue theory. These four different approaches were lecturing & homework assignments, physical fatigue testing, FEA simulation of fatigue life of fatigue specimens, and the theoretical calculation of fatigue life of fatigue specimens. After the proposed approach was successfully implemented in the spring semester of 2017, we interviewed some students and conducted a class survey to obtain feedback regarding the approach presented in this paper. Student feedback indicated that students benefited from this integrated active learning approach for teaching fatigue theory. 100 percent of students agreed that they had a much better basic understanding of fatigue theory through this multi-faceted approach. This paper will present and explain in detail the integrated active learning approach for teaching fatigue theory. The class survey data analysis is also presented and analyzed.

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Design a New Set of Strength Labs for the Course, 'Mechanics of Materials'

Cited by 4 publications

References 2 publications

Teaching Finite Element Analysis for Mechanical Undergraduate Students

Teaching Finite Element Analysis for Mechanical Undergraduate Students

The Sagan Research Project for Exploring Statistical Parameters of Typical Mechanical Properties

An Integrated Active Learning Approach for Understanding Fatigue Theory

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