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International Journal of Fracture

, Volume 52, Issue 1, pp 19–45 | Cite as

Limit load solution and loading behavior of C(T) fracture specimen

  • Jun Ming Hu
  • Pedro Albrecht
Article

Abstract

Deformations far from the crack tip and plastic collapse at limit load may control the fracture of specimens fabricated from highly ductile materials. To investigate the behavior of test specimen under plastic fracture, this paper derives solutions for the limit load of the C(T) specimen based on slip-line analysis. The modified Green's solution gives the most accurate results. Analysis of test data for many types of metal materials shows that, after some initial crack extension, the specimens reach the limit load. Yet, previous investigators analyzed the resistance to crack extension in these specimens with J-R curves. The large plastic deformations and unloading of the material in the wake of crack extension violate the basic assumptions of J-integral, thus invalidating the J-R analysis. It is, therefore, necessary to perform limit load analysis in the investigation of ductile crack extension.

Keywords

Crack Extension Initial Crack Ductile Material Limit Load Metal Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • Jun Ming Hu
    • 1
    • 2
  • Pedro Albrecht
    • 1
    • 2
  1. 1.Department of Mechanical EngineeringUniversity of MarylandCollege ParkUSA
  2. 2.Department of Civil EngineeringUniversity of MarylandCollege ParkUSA

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