Elastic-Plastic Analytical Solutions For an Eccentric Crack Loaded by Two Pairs of Anti-Plane Point Forces
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摘要: 采用线场分析方法对理想弹塑性材料偏心裂纹板在裂纹面受两对反平面点力的情形进行弹塑性分析,分析不受小范围屈服条件的限制,求得了裂纹线附近应力场和位移场的弹塑性解析解、裂纹线上的塑性区长度随外荷载的变化规律及有限宽板具有偏心裂纹的承载力.Abstract: The improved near crack line analysis method was used to investigate an eccentric cracked plate loaded by two pairs of anti-plane point forces at the crack surface in an elastic-perfectly plastic solid.The analytical solutions of the elastic-plastic stress fields and displacements near the crack line have been found without the assumptions of the small scale yielding.The law that the length of the plastic zone along the crack line is varied with an external loads and the bearing capacity of an eccentric cracked plate are obtained.
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