Taking carbon fiber reinforced plastic car door anti-collision beam as an example,a multi-scale efficient simulation technology for engineering components was developed.The self-consistent cluster analysis method and the multi-scale progressive damage constitutive model were established.Through the hybrid modeling of multi-scale units and phenomenological elements,the solving cost of the model is effectively reduced.By allocating limited computing resources to appropriate locations,the results show that the utilization efficiency of computing resources is significantly improved,the efficient prediction of the damage behaviors of engineering components is realized,and the actual calculation time is shortened to 1/4 of the original.The macroscopic and microscopic progressive damage process of the com-posites anti-collision beam under three-point bending conditions was analyzed.Based on the vacuum bag forming process,the anti-collision beam sample was produced and the three-point bending failure experiment was carried out to verify the accuracy of the simulation results.
维普
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