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应用科学学报 ›› 1987, Vol. 5 ›› Issue (1): 1-15.

• 论文 •    下一篇

含任意分布裂纹与缺陷的板条加筋结构的应力强度因子

欧阳鬯, 周小康   

  1. 复旦大学
  • 收稿日期:1985-08-20 修回日期:1986-04-22 出版日期:1987-03-31 发布日期:1987-03-31
  • 基金资助:
    中国科学院科学基金资助的课题

STRESS INTENSITY FACTORS FOR PERIODIC STIFFENED STRIPS WITH RANDOM CRACK AND/OR HOLE

OUYANG CHANG, ZHOU XIAOKANG   

  1. Fudan University
  • Received:1985-08-20 Revised:1986-04-22 Online:1987-03-31 Published:1987-03-31

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摘要： 本文研究两类不同介质的板条在单向拉伸下裂纹尖端的应力强度因子的计算问题.板条内部分别含有一个任意分布的裂纹与椭圆孔,其结构为周期间隔地用筋条连接.采用复变函数及摄动方法,最后以幂级数形式给出应力强度因子的计算公式.对工程上多种实用的结构给出数值计算图表.这些结果进一步拓广了"应力强度因子手册"的工作,文中还指出了上述手册中某些结果存在的问题.

Abstract: This paper diseusses periodio stiffened strips made with two different kinds of materials and each strip with a random oraek or hole. The strueture is under extension along the longitudinal direction. Stress intensity factors at the craek tips are computed by complex variable functions and perturbation method and formulas are given in power series forms. For applied structures in engineering, numerical tables and figures are given for stress intensity factors. These results extend further the contents of "Handbook of Stress Intensity Factors".