摘要
本文通过对压痕弯曲梁的压痕载荷和断裂强度关系的理论分析和推导,介绍了一种确定切点(即K曲线和R曲线的交点)的方法,这些切点的轨迹组成了R曲线,并通过实验对这种方法进行了验证。结果发现这种改进的包络线法与常规的包络线法所测得的阻力曲线相吻合。这种方法完善了常规的K曲线切点包络线法,更为重要的是它揭示了压痕弯曲梁的压痕载荷和断裂强度关系的物理内涵。
In this paper, the strength-indentation load relation was analyzed, a new method is proposed to define the point in the K-curve at which the R-curve intersect the points form the locus of the R-curve. This method complemented the conventional ＂tangency condition＂ approach in determining the R-curve from the experimental strength-indentation load relation, the physical insight of the strength-indentation load relation is explored by developing the method in the present study.
出处
《陶瓷学报》
CAS
2006年第1期75-78,共4页
Journal of Ceramics
关键词
阻力曲线
包络线法
切点
改进
R-curve, the envelope method, tangency point, improvement
作者简介
通讯联系人：杨辉，男，教授
