Crack growth simulation in thin plate using simplified strain based damage model

Jun Min Seo, Yun Jae Kim, Masaki Omiya

研究成果: Article査読

抄録

In this study, a simple strain based damage model is applied to simulate the ductile crack growth in thin 590 MPa class steel plates with notch and hole. The model depends only on the stress triaxiality and has two parameters. Determination of two parameters is straightforward by analyzing the tensile test results of flat plate specimen and plate specimen with sharp notches. The determined damage model is then applied to simulate the crack growth in other two types of test specimens containing plates with hole and notch, and a good agreement between the simulated and experimental results is obtained. It is found that the simulation results are primarily affected by the in-plane element size in the crack growth direction. On the other hand, the out-of-plane element size does not affect simulation results. It is found that the use of an in-plane element size of 0.1 mm or less is appropriate.

本文言語English
論文番号108188
ジャーナルEngineering Fracture Mechanics
260
DOI
出版ステータスPublished - 2022 2月 1

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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