Development of an Automated System for Three-Dimensional J-Integral Analysis
By integrating the 3D solid modeler with the universal FEM code, an automatic nonlinear analysis system for 3D crack problems has been developed. A geometry model, that is, a solid containing one or several 3D cracks is defined. Multiple distributions of local node density are selected and automatic...
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| description | By integrating the 3D solid modeler with the universal FEM code, an automatic nonlinear analysis system for 3D crack problems has been developed. A geometry model, that is, a solid containing one or several 3D cracks is defined. Multiple distributions of local node density are selected and automatically overlapped with each other over the geometry model using fuzzy knowledge processing. Nodes are created by the bucketing method, and tetrahedral square tetrahedral solid elements are generated by the Delaunay triangulation technique. A complete finite element (FE) model is created and stress analysis is performed. In this system, analysts can significantly reduce the burden of introducing 3D cracks into FE models and estimating fracture mechanics parameters. This paper describes a methodology for realizing such a function and demonstrates the validity of this system. |
| doi_str_mv | 10.1088/1757-899X/635/1/012023 |
| format | Article |
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| subjects | Delaunay triangulation Finite element method Fracture mechanics J integral Nonlinear analysis Parameter estimation Stress analysis Three dimensional analysis Three dimensional models |
| title | Development of an Automated System for Three-Dimensional J-Integral Analysis |
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