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- W4238402004 abstract "The least-squares formulation for rigid-plasticity based on J₂-flow rule and infinitesimal theory and its meshfree implementation using moving least-squares approximation are proposed. In the least-squares formulation the squared residuals of the constitutive and equilibrium equations are minimized. Those residuals are represented in a form of rust-order differential system using the velocity and stress components as independent variables. For the enforcement of the boundary and frictional contact conditions, penalty scheme is employed. Also the reshaping of nodal supports is introduced to avoid the difficulties due to the severe local deformation near the contact interface. The proposed least-squares meshfree method does not require any structure of extrinsic cells during the whole process of analysis. Through some numerical examples of metal forming processes, the validity and effectiveness of the method are investigated.br/" @default.
- W4238402004 created "2022-05-12" @default.
- W4238402004 date "2004-12-01" @default.
- W4238402004 modified "2023-09-25" @default.
- W4238402004 title "The Least-Squares Meshfree Method for the Analysis of Rigid-Plastic Deformation" @default.
- W4238402004 doi "https://doi.org/10.3795/ksme-a.2004.28.12.2019" @default.
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