Volume 38 Issue 6
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XUE Gang. Analysis on Fracture during Uniaxial Tensile Test with Round Bar Sample based on I1 Fracture Criterion[J]. Development and Application of Materials, 2023, 38(6): 100-110.
Citation: XUE Gang. Analysis on Fracture during Uniaxial Tensile Test with Round Bar Sample based on I1 Fracture Criterion[J]. Development and Application of Materials, 2023, 38(6): 100-110.
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Analysis on Fracture during Uniaxial Tensile Test with Round Bar Sample based on I1 Fracture Criterion

  • Luoyang Ship Material Research Institute, Luoyang 471023, China

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  • Received Date: May 04, 2023
  • Available Online: January 09, 2024
    Graphical Abstract
    • Abstract
  • Fractures during the uniaxial tensile test with round bar of two material models are analyzed by the elastic-plastic finite element method based on I1 fracture criterion. The results indicate that the crack forms in the center of the minimal section at first. The crack unstably propagates into a circular crack the moment it forms, and then the propagation ceases. With the displacement load continuously increasing, the crack propagates step by step. The axial force reduces sharply when the crack forms and propagates unstably. The fracture strength Ib can be measured by using this characteristic of the axial force's change.
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    • References (10)
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