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Element Free Method for Plane Stress Model I Crack with Couple Stress Effect

In: Computational Mechanics

Author

Listed:
  • Minghui Hao

    (Shandong University, School of Civil Engineering)

  • Hai Wu

    (Shandong University, School of Civil Engineering)

  • Xiping Wang

    (Shandong University, School of Civil Engineering)

  • Shenjie Zhou

    (Shandong University, School of Mechanical Engineering)

Abstract

In order to explain the size effect for materials in the scale of micron meters, the strain gradient theory was developed. There is hard strain gradient which affects the microcosmic crack behavior in the crack tip. The element free Galerkin method (EFGM) has advantages in solving crack problems, requiring no remeshing. However the traditional element free method didn’t consider the influence of couple stress in solving problems. In this paper we calculate the stress concentration factor of crack tip with EFGM based on the couple stress theory, and analyze the influence of couple stress on the stress field in crack tip. The result shows the feasibility and efficiency of the method.

Suggested Citation

  • Minghui Hao & Hai Wu & Xiping Wang & Shenjie Zhou, 2007. "Element Free Method for Plane Stress Model I Crack with Couple Stress Effect," Springer Books, in: Computational Mechanics, pages 337-337, Springer.
    • Handle: RePEc:spr:sprchp:978-3-540-75999-7_137
    DOI: 10.1007/978-3-540-75999-7_137
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