Thermal Stresses in Anisotropic Multilayered Structures

  • Wan-Lee Yin


Bimetal thermostats and multilayered beams and laminates are often subjected to severe interfacial stresses under mechanical and temperature loads. According to the predictions of the linear theory of elasticity, mismatches in the elastic properties of two adjacent layers generally result in a stress singularity at the intersection of their interface with a free edge.1–4 The intense but localized peeling and shearing action near the free edge may initiate interfacial fracture and may lead to failure of the component. Such adverse conditions can sometimes be avoided or rendered less harmful by rearranging the layers or by altering certain geometrical parameters. This requires, however, efficient and accurate analytical methods for determining the interlaminar stresses across all interfaces of a layered beam or laminate under various mechanical and thermal loads.


Thermal Stress Stress Function Free Edge Temperature Load Laminate Beam 
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© Van Nostrand Reinhold 1993

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  • Wan-Lee Yin

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