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.