航空学报 > 1988, Vol. 9 Issue (9): 434-439

受任意钉载圆孔边径向裂纹分析

吴学仁, 黄新跃   

  1. 北京航空材料研究所
  • 收稿日期:1987-09-01 修回日期:1900-01-01 出版日期:1988-09-25 发布日期:1988-09-25

ON THE PROBLEM OF RADIAL CRACKS EMANATING FROM AN ARBITRARILY LOADED CIRCULAR HOLE

Wu Xueren, Huang Xinyao   

  1. Institute of Aeronautical Materials, Beijing
  • Received:1987-09-01 Revised:1900-01-01 Online:1988-09-25 Published:1988-09-25

摘要: 本文利用权函数法求解了孔壁受径向及切向集中力作用的圆孔边径向裂纹的应力强度因子。计算了在磨蚀条件下的圆孔边裂纹的应力强度因子,讨论了销钉与孔壁摩擦力对裂纹扩展寿命的影响。

Abstract: Stress intensity factors for radial cracks emanating from a circular hole in an infinite plate,with radial and tangential forces acting at an arbitrary point on the hole edge, are obtained using the weight function method. The results can readily be used in damage tolerance design for structural components with arbitrarily loaded circular holes containing radial cracks. To demonstrate the approach, stress intensity factors with the hole subjected to fretting condition have been calculated and the effects of the friction between the hole and the pin on the crack growth life discussed.