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Functionally graded material: A parametric study on thermal-stress characteristics using the Crank-Nicolson-Galerkin scheme. (English) Zbl 0976.74064
Summary: We analyze thermal-stress characteristics of functionally graded materials (FGM), the newly introduced layered composite materials with great potential as next generation composites. Among the several material parameters governing its characteristics, we study the effects of material variation through the thickness and the size of FGM layer inserted between metal and ceramic layers using the finite element method. Through a representative model problem, we observe different thermal stress characteristics for different material variations and sizes of FGM. This study provides insight into the concept of FGM and lays the foundation of FGM optimization to control thermal stresses.

74S05 Finite element methods applied to problems in solid mechanics
74E30 Composite and mixture properties
74F05 Thermal effects in solid mechanics
74E05 Inhomogeneity in solid mechanics
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