Elastic Stress Analysis of Advanced Functionally Graded Plates Impacted by Blast Loading

The foundation of the theory of functionally graded plates with all four edges simply supported, under a Friedlander explosive spherical air-blast, is developed, within the classical plate theory (CPT). The constituent materials, ceramic and metal, vary across the wall thickness according to a presc...

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description The foundation of the theory of functionally graded plates with all four edges simply supported, under a Friedlander explosive spherical air-blast, is developed, within the classical plate theory (CPT). The constituent materials, ceramic and metal, vary across the wall thickness according to a prescribed power law. The theory incorporates the geometrical nonlinearities, the dynamic effects, compressive/tensile edge loadings, damping effects, and the structural symmetries (symmetric and asymmetric). The static and dynamic solutions are developed leveraging the use of a stress potential coupled with the Extended-Galerkin method and the Runge-Kutta method. Validations with simpler cases existing within the literature are made. The analysis focuses on how to alleviate the unwanted effects of large elastic stresses and deformations through material selection and proper gradation of the constitutive phases. Submitted to International Journal of Solids and Structures.
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The constituent materials, ceramic and metal, vary across the wall thickness according to a prescribed power law. The theory incorporates the geometrical nonlinearities, the dynamic effects, compressive/tensile edge loadings, damping effects, and the structural symmetries (symmetric and asymmetric). The static and dynamic solutions are developed leveraging the use of a stress potential coupled with the Extended-Galerkin method and the Runge-Kutta method. Validations with simpler cases existing within the literature are made. The analysis focuses on how to alleviate the unwanted effects of large elastic stresses and deformations through material selection and proper gradation of the constitutive phases. 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The constituent materials, ceramic and metal, vary across the wall thickness according to a prescribed power law. The theory incorporates the geometrical nonlinearities, the dynamic effects, compressive/tensile edge loadings, damping effects, and the structural symmetries (symmetric and asymmetric). The static and dynamic solutions are developed leveraging the use of a stress potential coupled with the Extended-Galerkin method and the Runge-Kutta method. Validations with simpler cases existing within the literature are made. The analysis focuses on how to alleviate the unwanted effects of large elastic stresses and deformations through material selection and proper gradation of the constitutive phases. 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subjects BLAST LOADS
CERAMIC MATERIALS
COMPRESSIVE PROPERTIES
COUPLING(INTERACTION)
DYNAMIC RESPONSE
ELASTIC PROPERTIES
ELASTIC STRESS
Explosions
EXPLOSIVE BLAST
EXPLOSIVES
FOUNDATIONS(STRUCTURES)
FUNCTIONALLY GRADED
GEOMETRY
LAW ENFORCEMENT
METALS
NONLINEAR SYSTEMS
RUNGE KUTTA METHOD
SOLUTIONS(GENERAL)
STATICS
STRESS ANALYSIS
STRUCTURAL PROPERTIES
SYMMETRY
TENSILE PROPERTIES
title Elastic Stress Analysis of Advanced Functionally Graded Plates Impacted by Blast Loading
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