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Due to the large number of design variables for laminate composite structures, the use of an optimum stacking sequence is a key step in the design of a structure with the most suitable mechanical properties. This work presents a genetic algorithm (GA) for the optimization of the stacking sequence to improve strength of a cylindrical shell under internal pressure. The GA is associated to a meso-scale...
In the present study, we conducted structural optimization for CFRP cryogenic propellant tank. Under the cryogenic temperature, large thermal stress between metallic material and CFRP might cause the debonding failure. Optimizations were performed by considering crack propagation. Energy release rate of debonding crack calculated by virtual crack closure method was used as objective function. Two...
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