摘要
对圆形平冲头轴对称冲入半无限体问题提出以参数方程建立速度场,并以参量积分求解变形功率的新方法。得到了轴对称冲入应力状态因子的上界解析解,证明了该解略低于平面变形冲入三角形速度场的最小上界值。
A parametric equation to establish velocity field for the indentation of semi-infinite medium by a flat-round punch was proposed, and corresponding parametric integration to deformation power was performed as a new method in this paper. A minimal analytical upper-bound solution of stress state factor for the indentation was obtained. The result is shown to be lower than that of triangle velocity field for the plane-strain indentation.
出处
《应用科学学报》
CAS
CSCD
2003年第2期161-164,共4页
Journal of Applied Sciences
基金
国家重点基础研究发展规划项目(G2000067208-4)
