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Board 52: Playing Relieves Stress…Concentrations!

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2018 ASEE Annual Conference & Exposition


Salt Lake City, Utah

Publication Date

June 23, 2018

Start Date

June 23, 2018

End Date

July 27, 2018

Conference Session

Civil Engineering Division Poster Session

Tagged Division

Civil Engineering

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Paper Authors


Ronald W. Welch The Citadel

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Ron Welch (P.E.) received his B.S. degree in Engineering Mechanics from the United States Military Academy in 1982. He received his M.S. and Ph.D. degrees in Civil Engineering from the University of Illinois, Champaign-Urbana in 1990 and 1999, respectively. He became the Dean of Engineering at The Citadel on 1 July 2011. Prior to his current position, he was the Department Head of Civil Engineering at The University of Texas at Tyler from Jan 2007 to June 2011 as well as served in the Corps of Engineers for over 24 years including eleven years on the faculty at the United States Military Academy.

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Most if not all of the Mechanics of Materials texts have a section on Stress Concentrations. This increase in stress in an axial, torsional, or flexural member arise from a change in the cross-sectional area such as fillets, notches, holes, etc. Many lessons on stress concentrations are limited to a few pictures from the text and an explanation of how to use the stress concentration figures to determine the stress concentration factor.

This paper will present the physical model used during a lesson on stress concentrations. The author will present the lesson and the use of the physical model. The physical model allows each student to demonstrate to themselves the importance of the change in shape and the placement of holes and notches. Assessment of exam and homework data will highlight the value of simple hands on activities within as many classes as possible. Each person in the session will participate in the use of this physical model.

Welch, R. W. (2018, June), Board 52: Playing Relieves Stress…Concentrations! Paper presented at 2018 ASEE Annual Conference & Exposition , Salt Lake City, Utah. 10.18260/1-2--30053

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