摘要
在提供的裂纹扩展理论阻力曲线的基础上,给出了阻力曲线与试样厚度关系的数学表达式。利用少量试验结果,根据最小二乘方法即可确定表达式中的参量。这一数学表达式得到了试验结果的验证,并可补充现有手册中试验数据之不足。
A mathematical formula for the relation between resistance curve of crack extension and sample thickness is obtained in fracture mechanics, which is based on the theoretical resistance curve of crack extension provided in a previous work. Some parameters in the formula are made certain in the least square method by using a few of test results. Finally, the mathematical expression is verified by adopting some test results and it will supplement data to the current handbook which has been short of test data.
出处
《机械工程学报》
EI
CAS
CSCD
北大核心
2003年第6期49-52,共4页
Journal of Mechanical Engineering
基金
教育部博士点基金资助项目(1999000607)
