Evaluation of stress intensity factors of thin AZ31B magnesium alloy plate under biaxial tensile loading

Evaluation of stress intensity factors of thin AZ31B magnesium alloy plate under biaxial tensile loading

Stress intensity factors of thin AZ31B magnesium alloy sheet under biaxial tension loading were analyzed by modified Dugdale model. K-values with crack angle of 90° obviously show that there is no influence of the loading condition in Mode-I. In the 45° case, K1 values are obtained within 10% errors...

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Veröffentlicht in:Transactions of Nonferrous Metals Society of China 2010-07, Vol.20 (7), p.1282-1287
1. Verfasser: 王建刚 赵红阳 巨东英
Format: Artikel
Sprache:eng
Schlagworte:
AZ31B镁合金
AZ31镁合金板材
biaxial tension
China
Cracks
cross-rolling
Dugdale模型
Errors
isotropic material
Magnesium base alloys
Mathematical models
Mg alloy
Nonferrous metals
plate
Stress intensity factor
加载条件
应力强度因子
影响模式
拉伸载荷
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Zusammenfassung:Stress intensity factors of thin AZ31B magnesium alloy sheet under biaxial tension loading were analyzed by modified Dugdale model. K-values with crack angle of 90° obviously show that there is no influence of the loading condition in Mode-I. In the 45° case, K1 values are obtained within 10% errors when they are calculated by modified Dugdale model under biaxial loading. It is concluded that the modified Dugdale model is one of effective ways to evaluate stress intensity factor of AZ31 magnesium alloy sheet appropriately.
ISSN:1003-6326
DOI:10.1016/S1003-6326(09)60291-0