Experimental calculation of mixed-mode notch stress intensity factors for anisotropic materials

S. H. Ju, H. Y. Chung, B. J. Jhao

研究成果: Article同行評審

7 引文 斯高帕斯(Scopus)

摘要

This study developed a least-squares method to find the notch stress intensity factors (SIFs) of anisotropic materials using image-correlation experiments without the requirement of smooth procedures. Complex displacement functions are deduced into a least-squares form, and then displacements from the image-correlation experiments are substituted into the least-squares equation to evaluate the notch SIFs for anisotropic materials. Experimental results compared with the H-integral and finite element analyses show that the SIFs evaluated from the current method are acceptably accurate if more than five displacement terms are included. Moreover, the least-squares SIFs are not sensitive to the maximum or minimum radius of the area from which data is included, so experimental data very near the notch tip is not necessary.

原文English
頁(從 - 到)2260-2271
頁數12
期刊Engineering Fracture Mechanics
76
發行號14
DOIs
出版狀態Published - 2009 九月

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 材料力學
  • 機械工業

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