1R20.11 - Stress - Elastic Limits
Exceeding the elastic limit can be done easily with springs and wooden dowels. Cut several lengths of spring. Regular spring action is observed until the spring is stretched beyond the elastic limit at which time it will no longer contract to it's original position.
The plastic meter stick may be bent full circle if desired. The dowel can only be bent a small way before the elastic limit is exceeded and the dowel breaks.
- Bradley Allen, "From the Simple to the Surprisingly Complex – An Incremental Study of Elasticity", TPT, Vol. 57, #8, Nov. 2019, p. 570.
- Issac-Cesar Aguilar and David Kagan, "Breaking Bat", TPT, Vol. 51, #2, Feb. 2013, p. 80.
- Rod Cross, "Elastic Properties of Plasticine, Silly Putty, and Tennis Strings", TPT, Vol. 50, # 9, Dec. 2012, p. 527.
- Ligia R. Gomes, Ana Amado, Manuel C. Torres, and Luís M. N. B. F. Santos, "Simple Apparatus for Measurement of a Mechanical Properties of Solids", TPT, Vol. 49, #2, Feb. 2011, p. 117.
- Bernard J. Feldman, "The Collapse of the I-35W Bridge in Minneapolis", TPT, Vol. 48, #8, Nov. 2010, p. 541.
- Ivan Culaba and Ed van den Berg, "Tensile Stress and Shear Stress", TPT, Vol. 47, #2, Feb. 2009, p. 121.
- Paul Hewitt, "Figuring Physics", TPT, Vol. 32, #2, Feb. 1994, p. 121.
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- D. L. Mathieson, "The Tensile Strength of Paper", TPT, Vol. 29, #6, Sept. 1991, p. 412.
- R. D. Edge, "Strength and Shape", TPT, Vol. 25, #1, Jan. 1987, p. 50.
- H. Richard Crane, "Stretch Orientation: A Process of a Hundred Uses", TPT, Vol. 23, #5, May 1985, p. 304.
- R. D. Edge, "Elasticity", TPT, Vol. 21, #9, Dec. 1983, p. 608.
- Jeffrey May, "Physics on a Dinner Plate", TPT, Vol. 18, #9, Dec. 1980, p. 668, also A Potpourri of Physics Teaching Ideas - Sound, p. 251.
- Joseph Gallant, "The Shape of the Eiffel Tower", AJP, Vol. 70, #2, Feb. 2002, p. 160.
- Lucas Goehring and Stephen W. Morris, "Cracking Mud, Freezing Dirt, and Breaking Rocks", Physics Today, Vol. 67, #11, Nov. 2014, p. 39.
- Janice VanCleave, "17, Weakened", Engineering For Every Kid: Easy Activities that Make Learning Science Fun, p. 119.
- Janice VanCleave, "16, The Limit", Engineering For Every Kid: Easy Activities that Make Learning Science Fun, p. 113.
- Jearl Walker, "1.142, Stretching of Plastic Shopping Bags", The Flying Circus of Physics Ed. 2, p. 69.
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