G50钢与G31钢动态力学性能的对比试验研究  

Comparative Experimental Study on Dynamic Mechanical Properties of G50 Steel and G31 Steel

作　　者：孔庆强[1] 沈飞[1] 邢逸凡 吕永柱[1] 曹玉武[1] KONG Qingqiang;SHEN Fei;XING Yifan;Lü Yongzhu;CAO Yuwu(Xi’an Modern Chemistry Research Institute,Xi’an 710065,Shaanxi,China)

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《高压物理学报》2021年第1期68-74,共7页Chinese Journal of High Pressure Physics

摘　　要：采用拉伸、冲击、霍普金森杆压缩及所设计的爆轰加载试验方法,对比研究了G50钢与G31钢在准静态、动态及爆轰加载条件下的力学性能。试验结果表明:G50钢和G31钢在准静态、10^3 s^−1应变率下的动态力学性能相近;在爆轰加载条件下,G50钢和G31钢试样发生了近乎相同的破坏形态,说明在超高压及超高应变率条件下两种材料具有相近的屈服强度和抗拉强度。研究结果表明,G31钢与G50钢有相似的力学性能,在侵彻战斗部壳体方面可做进一步的应用尝试。The mechanical properties of G50 steel and G31 steel under quasi-static,dynamic and detonation loading conditions are compared by tensile test,impact test,Hopkinson bar test and detonation loading test.The results show that the mechanical performances of G50 steel and G31 steel under static and 103 s−1 strain rate conditions are similar.The G50 steel and G31 steel exhibit similar failure morphology after detonation loading test,indicating that the two materials have similar tensile strength and yield strength under ultra-high pressure and ultra-high strain rate condition.The test results show that G31 steel can apply in the shell of penetrating the warhead.

关 键 词：G50钢 G31钢 力学性能 爆轰加载 破坏形态 

分 类 号：O347[理学—固体力学]