Numerical study of balanced patch repairs to cracked sheets
Numerical study of balanced patch repairs to cracked sheets
复制标题
裂纹板材平衡修补修复的数值研究
DOI：
10.1017/s0001924000017255
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
D. Cartwright
中科院分区：
文献类型：
--
作者：
A. Young;D. Rooke;D. Cartwright
摘要采用两种简单的数值模型，研究了单轴载荷作用下大薄板裂纹修补贴片粘结对其应力强度因子的影响。研究了应力强度因子随裂纹长度增加的变化规律，发现涉及大椭圆斑块的修复结果符合封闭近似。进一步的情况下，补丁是矩形的形状或小于某一临界尺寸。对于这种修复，应力强度因子的封闭近似是不合适的。
Summary The effects on the stress intensity factor of bonding repair patches over a crack in a large sheet under uniaxial loading are studied using two simple numerical models. The variation of the stress intensity factor with increasing crack length is investigated and results for repairs involving large elliptical patches are found to agree with a closed-form approximation. Further cases are considered where the patch is either rectangular in shape or less than a certain critical size. For such repairs the closed-form approximation for the stress intensity factor is shown to be unsuitable.