若干塑性平面应力问题的统一解

Solutions to Plastic Plane Stress Problems

文中将统一特征线场理论推广应用于一些塑性平面应力问题，分别得出单向拉伸的平板试件、受压缩的梯形楔体和无限大板的孔洞扩张问题的极限荷载．研究结果表明：统一特征线场理论具有统一的力学模型和统一的线性数学表达式，易于求得解析解，可以灵活地应用于各类不同性质的材料。

The unified characteristic theory is generalized and applied to plane stress problems with plasticity. Solutions are presented for a rectangular plate in uniaxial tension, a wedge plate in compression and a infinite plate with a circular hole. It is shown that the theory can be applied to many practical engineering problems.