Shijiazhuang Mechanical Engineering College;
Shijiazhuang;
050003;
China Shijiazhuang Mechanical Engineering College;
Shijiazhuang;
050003;
China Shijiazhuang Mechanical Engineering College;
Shijiazhuang;
050003;
China;
strength-difference; linearly; elastic; power; hardening; the; plane; structure; of; bars; stress; strain;