冲击荷载作用下试验机金属材料极限承载力测量技术  

Measurement technology of ultimate bearing capacity of metallic materials of testing machine under impact load

作　　者：李明 郭相飞 方馨悦 LI Ming;GUO Xiangfei;FANG Xinyue(Kaifeng Quality and Technology Supervision,Inspection and Test Center,Kaifeng475000,Henan,China)

机构地区：[1]开封市质量技术监督检验测试中心,河南开封475000

出　　处：《金属功能材料》2021年第6期80-84,共5页Metallic Functional Materials

摘　　要：传统试验机金属材料极限承载力测量技术获得的影响因素单一,导致存在损伤的金属材料的极限承载力测量结果与实际情况不符。为此,研究新的冲击荷载作用下试验机金属材料极限承载力测量技术。该技术基于冲击荷载过程,构建金属材料力学特征计算模型,全面提取金属材料极限承载力影响因素,通过计算得到屈服弯矩,测量金属材料抗弯极限承载力。为验证所提技术的应用效果,设计仿真试验。试验结果表明:与传统测量技术相比,对于正常金属试件和已变形金属试件时,所提技术测量结果与实际数据一致。The traditional testing machine of metal material ultimate bearing capacity measurement technology obtained single influence factors,resulting in the ultimate bearing capacity measurement results of the metal material with damage are not consistent with the actual situation.Therefore,a new technique for measuring the ultimate bearing capacity of metal materials under impact load was studied.Based on the impact load process,the mechanical characteristic calculation model of metal materials was constructed,and the influencing factors of ultimate bearing capacity of metal materials were comprehensively extracted.The yield moment was obtained through calculation,and the ultimate bending bearing capacity of metal materials was measured.In order to verify the application effect of the proposed technology,a simulation experiment was designed.The experimental results showed that,compared with the traditional measurement technique,the measured results of the proposed technique were consistent with the actual data for both normal and deformed metal specimens.

关 键 词：冲击荷载 试验机 金属材料 限承载力 屈服弯矩 

分 类 号：TG115[金属学及工艺—物理冶金]