摘要
为满足焊接接头在冲击载荷作用下的冲击韧度研究要求 ,结合气炮加载式Hopkinson装置与Charpy冲击三点弯曲试样测试技术 ,建立了一套在气炮式Hopkinson压杆装置上进行高应变速率条件下的冲击韧度测试系统 ,较好地解决了测试中所遇到的加载、记录、数据处理以及动态效应等技术难题 ,并就相关影响因素进行了讨论。通过对E5 0 15焊接接头V形缺口试样及带预制裂纹的V形缺口试样在此系统上进行冲击韧度测试 ,取得了较理想的结果 ,表明该系统设计思想正确 ,测试结果可靠。
To meet the needs of studying impact toughness of welded joint,established a measuring system of impact toughness with high strain rate by combining the Hopkinson device of gas gun loading model with the measuring technique of three point bending specimens in gas gun device of split Hopkinson pressure bar.Some technical problems such as loading,recording,data treatment,dynamic effect and so on have been solved.Impact tests of joint welded with E5015 electrode were carried out using common V type notch specimen and precast crack V type notch specimen.Ideal results showed that the design thinking of the system is right,and test data is reliable.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2001年第3期71-75,共5页
Transactions of The China Welding Institution
关键词
焊接接头
冲击韧度
测试技术
高应变率
welded joint
impact toughness
measuring technique
high strain rate
