VERIFICATION OF LAMINATE COMPOSITEPLATE SIMULATION UNDER COMBINED LOADINGS THERMALSTRESSES
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Abstract
This study deals with thermal cyclic loading phenomena of plates which were fabricated from
composite materials (woven roving fiber glass + polyester) were exposed to (75 C°) temperature
gradient thermal shock for ten times in different stage of conditioning times due to the effect of thermal
fatigue using the method of Levy solution and compared these results with both results from
experimental published work and (ANSYS Ver. 9) program. A composite laminate plate with fiber
volume fraction (υf =25.076%) is selected in this study and applying the combined loadings like
bending moment (Mo), and in-plane force (Nxx) beside the effect of thermal fatigue. It involves multi
theoretical and finite element fields; but the theoretical one contains the derived equation of stresses
distribution and evaluating the normal deflection of a middle point for dynamic analysis applying
different boundary conditions for heating and cooling. The main present numerical results for a
composite plate with (80%) fiber volume fraction claim that the relative reduction in normal deflection
and dynamic load factor are (78.593%) and (9.421%) during cooling to (-15 respectively.
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References
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