THE STRESS-STRAIN FIELDS AT CRACK TIP IN AXIALLY CRACKED CYLINDRICAL SHELLS AND THE CALCULATION OF STRESS INTENSITY FACTORS

被引：0
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作者：
Liu Chuntu Wu Xijia (Institute of Mechanics
机构：
来源：
Acta Mechanica Sinica | 1987年 / 03期
关键词：
cylindrical shell; crack; stress-strain field; stress intensity factor; bulging factor;
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摘要：
A perturbation solution for stress-strain fields（including modes Ⅰ,Ⅱ,Ⅲ）ar crack tip inaxially cracked cylindrical shells is given.The analysis,using 10th-order differential equations which takethe transverse shear deformations into account,involves perturbation in a curvature parameter λ;,(λ;=[12（1-v;）];α;/Rh).Stress intensity factors for finite size cylindrical shells under bending andinternal pressure loading are evaluated.A good accuracy can be obtained without using fine meshes in aregion near the crack tip.Besides,the influence of the finite size and the shearing stiffness on bulgingfactors,which are commonly used in engineering,are analyzed.
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页码：223 / 230
页数：8
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