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Statics Problems and Elasticity. Lecture 11 Thursday 19 February 2004. Elasticity. A solid may change its dimensions by three ways: I Tensile Stress (Stretching) II Shearing Stress III Hydrostatic Stress Stress (or deforming force)/unit area produces a Strain (or unit deformation)
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Statics Problems and Elasticity Lecture 11 Thursday 19 February 2004
Elasticity • A solid may change its dimensions by three ways: • I Tensile Stress (Stretching) • II Shearing Stress • III Hydrostatic Stress • Stress (or deforming force)/unit area produces a Strain(or unit deformation) • Stresses and Strains Stress is proportional to Strain ( Hooke’s Law) Stress=Modulus x Strain