V型切口圆棒梁(CENRBB)的柔度标定
来源期刊：中南大学学报(自然科学版)1986年第5期
论文作者：危育蒲 范太华
文章页码：75 - 79
关键词：柔度标定； 应力强度因子； 断裂韧度； 裂纹长度； 多项式拟合
Key words：Compliance calibration； Stress intensity factor； Fracture toughness； Crack length； Polynomial regression
摘 要：本文对V型切口的铝制圆棒梁（CENRBB）进行了柔度标定,所得最小无量纲应力强度因子曲线与用解析法所得的相应曲线相吻合,从而为解析法提供了实验佐证。根据柔度标定所得的最小无量纲应力强度因子表达式及其量值,均可作岩石断裂韧度K1c测试时的取值。
Abstract: The curve of minimum dimensionless intensity facfor is obtained by the way ofa compliance calibration with Chevron Edge Notch Round Bar in Bending (CENRBB),which is made of aluminium, It is coincided with that of the analytic method, sothat an experimental evidence is provided for the analyzing method The expressionand data of the minimum dimensionless stress intensity factor obtained fromcompliance calibration can both be used for the measure of fracture toughness K2c of rock.
