Optimization of tensile fixture by response surface method based on parameter sensitivity
In the mechanical performance test of lightweight composite materials,the traditional fixtures commonly suffer from insufficient clamping force and specimen slippage.To solve the problem,a novel locatable double-layered tensile fixture was designed.Response surface method(RSM)was used to optimize the connecting structure of the tensile fixture.The analysis results showed that the maximum equivalent stress of the tensile fixture before optimization was located at the connection structure between the outer fixing block and the outer plate,and there was stress concentration;in the optimized scheme,the maximum equivalent stress decreased by 17.2%,and the maximum total deformation decreased by 13.6%.By repla-cing the actual test with simulation,the production cost is effectively reduced.The structural optimization design of the tensile fixture has certain reference significance.
NETL
NSTL
万方数据
维普
