摘要
用权函数法推导了承受对称载荷Griffith裂纹D-M模型的裂纹张开位移COD一般公式.应用它计算了四种载荷情况的COD,可供工程上应用.本文方法具有计算简便的优点.
According to D-M model, a common formula of crack tip opening displacement COD for a Griffith crack stretched to a symmetroid load is derived by using weight function method. The formulae of COD for four loading cases are obtained by using it. The presented method is veery simple. The given results are very useful in engineering.
关键词
裂纹
权函数
对称载荷
位移
crack
weight function
symmetroid load
crack opening displacement
