动态断裂韧性测试中的惯性效应分析  

ANALYSIS OF INERTIAL EFFECT IN DYNAMIC FRACTURE TEST

作　　者：李存剑[1] 李少华[1] 翁宇庆 

机构地区：[1]北京钢铁研究总院,北京100081 [2]国家冶金工业局,北京100711

出　　处：《理化检验（物理分册）》2000年第11期483-485,共3页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：用弹簧质量模型分析了三点弯曲试样在冲击载荷作用下的惯性效应 ,得到了脆性断裂条件下有效载荷的修正公式。分别采用受惯性效应影响的示波冲击试验及无惯性效应的焦散线技术对 HQ785C钢进行了动态测试 ,验证了修正公式的有效性。The inertial effect of three point bend specimens under impact loading was analyzed by using the spring mass system model and an expression for the correction of inertial force was obtained under the condition of brittle fracture of materials. The validity of the expression was verified by the instrumented impact test and caustic test results for HQ785C steel.

关 键 词：弹簧质量模型 动态断裂韧性 惯性效应 

分 类 号：TB302.3[一般工业技术—材料科学与工程]