Hooke's
Law for Brittle and Ductile Materials
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Consider the specimen in a
testing machine shown below. Let the
load, P, increase in value from zero and measure the
stress and strain. The left figure
shows a typical response for brittle material. The slope of the stress-strain curve in the
linear˗elastic region is E, the Modulus of Elasticity also
called Young’s modulus.. The right
figure shows an elastic-plastic material response which is an
idealized model. The bottom figure
shows the material response for a ductile
material. Return to
discussion of Hooke's Law and Poisson's Ratio. |
| Return to Notes on Solid Mechanics |
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