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Based on the continuum damage mechanics theory, the fatigue life prediction for 30CrMnSiA alloy steel with impact defect is conducted. At first, the damage evolution equations to calculate the initial plastic damage and multiaxial fatigue damage are derived. Then the method to calibrate three kinds of material parameters for 30CrMnSiA alloy steel is proposed and all the material parameters are obtained...
A novel dynamical model for a single cell electric double-layer capacitor is proposed. The model was derived from a distributed-parameter electrochemical model, first reformulated and then approximated to reduce its order. Finite dimension approximations were obtained by applying finite differences, finite element and differential quadrature semidiscretization methods. The best approach was obtained...
This paper discusses the key technique of finite element modeling for complex precision forging part, which includes geometrical modeling, element type selecting, element meshing and remeshing, material model selecting, friction model definition and contact problem, In addition, the particular application of complex precision forging part in precision forming finite element modeling was shown combined...
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