Chapter 11 â Equilibrium and Elasticity - UCF Physics

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Elastic modulus: describes the elastic behavior (deformations) of objects as they respond to forces that act on them. Stress = <strong>Elasticity</strong> Modulus x Strain (1) Stress = cte x Strain Recovers original dimensions when stress removed. (2) Stress > yield strength S y specimen becomes permanently deformed. (3) Stress > ultimate strength S u specimen breaks. Tension <strong>and</strong> compression: Stress = F A ( F= force applied perpendicular to the area A of the object)
∆L Strain = ( fractional change in length of the specimen) L F ∆L Stress = (Young’s modulus) x Strain = E A L Units of Young modulus: F/m 2 Shearing: Stress = F A ( F= force in the plane of the area A) F A = G ∆x L Strain ∆x = ( fractional change in length of the specimen) L Stress = (Shear modulus) x Strain Hydraulic stress: Stress = Fluid pressure = p = Hydraulic Stress = (Bulk modulus) x Hydraulic compression Strain ∆V = V F A ∆V p = B V
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Page 3 and 4: Stable static equilibrium: If a bod
Page 5 and 6: II. Center of gravity Gravitational
Page 7: III. Elasticity Branch of physics t

Chapter 11 â Equilibrium and Elasticity - UCF Physics

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Chapter 11 â Equilibrium and Elasticity - UCF Physics