Thermal stress 0.0 / 5 ? EngineeringPhysics of materialsUniversityNone Created by: OmololaS15Created on: 26-12-18 17:33 Define Thermal stress Stress which is induced in a body as a result of changes in temperature which can lead to fracture and undesirable plastic deformation. 1 of 5 How can stress be introduced in a material through heat? By restraining thermal expansion or contraction. 2 of 5 Give an equation for thermal stress σ = Eα(T_f -T_0) ] where α: linear coefficient of thermal expansion. 3 of 5 What stress is introduced when a rod is heated?( when the axial motion of the rod is restrained by rigid end supports) Compressive thermal stress as expansion has been constrained. 4 of 5 What stress is introduced when a rod is cooled?( when the axial motion of the rod is restrained by rigid end supports) Tensile thermal stress as contraction has been constrained. 5 of 5
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