Numerical Simulation and Experimental Validation for Strength Characteristics of Composite Perforated Plate

The development and aggregation of composite material structure damage is one of the important reasons to cause the structure failure. In this work, combining continuum damage analysis method and the finite element analysis software ANSYS, compiled the composite progressive damage analysis program. Based on the nonlinear progressive damage analysis model, the damage form and strength characteristics of composite perforated plate under tensile load was studied. Through the test, the method to accurately predicted the damage form and strength of composite hole wall structures accurately. Monte Carlo method applied to analyze the correlation between the stress value at the response point and the stiffness parameters, the influence of key parameters on the tensile bearing capacity of the perforated plate structure was obtained. Finally, the necessity of studying the structural strength characteristics under different coupling loads was analyzed. The results show that the method is more accurate in predicting the damage form and strength. Simultaneously, the influence of material parameters on the strength characteristics of the structure is studied, which provides a certain research basis for error analysis. © 2021, Materials Review Magazine. All right reserved.