Multilayer single channel finite element coupled thermal-mechanical modeling method based on isosceles trapezoidal cross section was proposed.Firstly,a multi-layer single-channel trapezoidal function model was built on a single-layer single-channel isosceles trapezoidal function model.Then,rationality of multi-layer single-channel trapezoidal function model was verified by comparing geometric deviation and thermal performance indexes of multi-layer single-channel trapezoidal function model and parabolic function model,and thermal coupling simulation analysis and corresponding experimental verification of multi-layer single-channel deposition process were carried out.The simulation and test results showed that simulation results of multilayer single-channel trapezoidal function model were in good agreement with parabolic function model and test results,and computational efficiency was improved to a certain extent.
关键词
电弧增材制造/有限元建模/梯形模型/残余应力
Key words
wire arc additive manufacturing/finite element modeling/trapezoidal model/residual stress
维普
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