Journal of Petrochemical Universities

Journal of Petrochemical Universities ›› 2011, Vol. 24 ›› Issue (5): 80-82.DOI: 10.3696/j.issn.1006-396X.2011.05.021

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Stress Intensity Factors for Circumferential Periodic Flat Indentation

  

  1. 1.School of Mechanical Engineering, Liaoning Shihua University, Fushun Liaoning 113001,P. R. China;
    2.Department of Technology, Jinxi Petrolchemical Cooperation, Huludao Liaoning 125000,P. R. China
  • Received:2011-09-11 Revised:2011-10-06 Published:2011-10-25 Online:2011-10-25

圆柱壳周期阵列压痕应力强度因子

王晓华1,段大文2,谢禹钧1*   

  1. (1.辽宁石油化工大学机械工程学院,辽宁抚顺113001;暋2.中国石油锦西石化公司技术处,辽宁葫芦岛125000)
  • 作者简介:王晓华(1959-),女,四川泸州市,教授。
  • 基金资助:
    国家自然科学基金项目(50771052;50971068)。

Abstract: When aperiodic array and cylindrical flat ended rigid indenter is pressed on the cylindrical substrate,a mixed mode I-II singular stress field will induced at the edge of the indentation,which shares the same singularity with the same mode cracks and well lead contact boundary to fracture.Based on the equivalent crack method,the stress intensity factors for indentation with periodic array and cylindrical flat ended rigid indenter had been found.

Key words: Indentation stress intensity factor,    , Indentation fracture,    , Fracture mechanics

摘要: 当柱壳平端刚性压头作用在同形的弹性基体表面时,在基体上生成一个平面压痕,同时在压痕边界处的近表面诱生奇异应力场,该奇异应力场的奇异性与裂纹尖端I-型应力场的奇异性同价,使平面压痕的表面产生断裂型开裂。利用当量裂纹法给出圆柱壳周期阵列压痕的应力强度因子。

关键词: 压痕应力强度因子,    , 压痕断裂,    , 断裂力学

Cite this article

WANG Xiao-hua,DUAN Da-wen,XIE Yu-jun. Stress Intensity Factors for Circumferential Periodic Flat Indentation[J]. Journal of Petrochemical Universities, 2011, 24(5): 80-82.

王晓华,段大文,谢禹钧. 圆柱壳周期阵列压痕应力强度因子[J]. 石油化工高等学校学报, 2011, 24(5): 80-82.