Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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A Cohesive Surface Separation Potential

  • Lee, Youngseog (Plate, Rod & Welding Research Group, POSCO Technical Research Laboratories, Pohang Iron & Steel Corp.,) ;
  • Kim, Kwang-Soo (Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH))
  • Published : 2002.11.01
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Abstract

This paper presents a form of the cohesive surface separation potential, which can produce potential curves by varying a single dimensionless parameter. Results show that a partial modification of Xu and Needleman's (1994) cohesive surface separation potential makes it possible to present the other potential corves as a special case as long as the normal separation is concerned. The proposed potential may describe interfacial debonding-crack initiation and growth-character of materials and, through numerical simulation, provide an insight for the effect of different cohesive surface separation potentials on the interfacial debonding.

Keywords

References

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