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COMPARISON OF FINITE ELEMENT CALCULAION AND EXPERIMENTAL STUDY OF ELASTIC-PLASTIC DEFORMATION AT CRACK TIP[J]. Chinese Journal of Theoretical and Applied Mechanics, 1995, 27(S): 51-57. DOI: 10.6052/0459-1879-1995-S-1995-502
Citation: COMPARISON OF FINITE ELEMENT CALCULAION AND EXPERIMENTAL STUDY OF ELASTIC-PLASTIC DEFORMATION AT CRACK TIP[J]. Chinese Journal of Theoretical and Applied Mechanics, 1995, 27(S): 51-57. DOI: 10.6052/0459-1879-1995-S-1995-502
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COMPARISON OF FINITE ELEMENT CALCULAION AND EXPERIMENTAL STUDY OF ELASTIC-PLASTIC DEFORMATION AT CRACK TIP

  • 清华大学工程材料系

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  • The strain field around a mode Ⅰ crack tip with plane stress deformation forFe-0.5%Si material specimen was measured by SEM,micro grid method and digital imageprocessing. Finite element method(FEM) for elastic-plastic deformation was used to cal-culate the experimental object. Comparison of experimental and FEM results showed thatFEM based on the updated Lagrangian formulation was in good accordance with experi-mental measurement.But some factors,e.g.,plastic dilatancy,should be included as cracktip was nea...
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