HookesLaws-7a - Hookes Laws for Axial and Shear Stress KML...

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Hooke’s Laws for Axial and Shear Stress KML 9/4/09 Hooke’s Law for axial (normal) stress is: ε = σ E , where this equation hold for the linear, elastic range of deformation, and: - σ is the normal stress (with units of psi, ksi, kPa, MPa, etc.) - E is the modulus of elasticity (with units of ksi, MPa, etc.) - ε is the normal strain (with no units) A square that is drawn on an unloaded object will become a rectangle when the object is loaded under a normal stress. Unloaded Loaded in tension Loaded in compression Hooke’s Law for shear stress is: γ = τ G , where this equation hold for the linear, elastic range of deformation, is analogous to the equation for normal stress, and:
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This note was uploaded on 10/01/2009 for the course MEGR 2144 taught by Professor Sharpe during the Fall '08 term at UNC Charlotte.

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