School,;
Saitama;
Institute;
of;
Technology,;
Fusaiji;
1690,;
Fukaya,;
Saitama;
369-0293,;
Japan;
of;
Material;
Science;
and;
Engineering,;
University;
of;
Science;
and;
Technology;
Liaoning,;
Anshan;
114051,;
China;
of;
Material;
Science;
and;
Engineering,;
Saitama;
Institute;
of;
Technology,;
Fusaiji;
1690,;
Fukaya,;
Saitama;
369-0293,;
Japan;
AZ31镁合金板材; AZ31B镁合金; 应力强度因子; 拉伸载荷; Dugdale模型; 评价; 加载条件; 影响模式;