-
摘要: 利用一级轻气炮作为加载手段,对AF1410钢的层裂特性进行了研究,获得了AF1410钢的Hugoniot关系、塑性应变率、层裂强度以及层裂片厚度等动态力学参数。对回收的AF1410钢样品进行了断口分析和金相分析,从宏、微观角度分析了AF1410钢在不同应变率下的断裂特性。Abstract: The spall properties of AF1410 steel are studied with the loading by gas gun. The Hugoniot relationship, plastic strain rate, spall strength, spall thickness and other dynamic parameters are obtained from experimental measurement. By the fracture analysis and metallographic analysis, the spall fracture mechanism at different strain rate is discussed.
-
Key words:
- shock dynamics /
- AF1410 steel /
- spall fracture /
- metallographic analysis
-
Tarabay H A, Seaman L, Curran D R. Dynamic Failure of Materials Volume 1-Experiments and Analyses [R]. DSWA-TR-96-77-V1, 1998. Grady D E. Steady-Wave Risetime and Spall Measurements on Uranium [R]. SAND-85-0233C, 1985. Chen G H, Li Z R, Liu Y K, et al. Flyer Velocity Measurement Using Double-Sensitivity VIASR [J]. Chinese Journal of High Pressure Physics, 2001, 15(1): 70-74. (in Chinese) 陈光华, 李泽仁, 刘元坤, 等. 用双灵敏度VISAR测量飞片自由面速度 [J]. 高压物理学报, 2001, 15(1): 70-74. Zhang L, Zhang Z G, Qin X Y, et al. Dynamic Fracture and Mechanical Property of D6A, 921 and 45 Steels under Low Shock Pressure [J]. Chinese Journal of High Pressure Physics, 2003, 17(4): 301-304. (in Chinese) 张林, 张祖根, 秦晓云, 等. D6A、921和45钢的动态破坏与低压冲击特性 [J]. 高压物理学报, 2003, 17(4): 301-304. Kanel G I, Razorenov S V, Utkin A V. Spallation in Solids Under Shock-Wave Loading: Analysis of Dynamic Flow, Methodology of Measurements, and Constitutive Factors [A]. //Lee D L, Grady D E. High-Pressure Shock Compression of Solid Ⅱ: Dynamic Fracture and Fragmentation [C]. Shahinpoor: Springer, 1996: 4-8. Blazynski T Z. The Material at High Strain Rate [M]. Translated by Tang Zh P. Hefei: USTC, 1992. (in Chinese) Blazynski T Z. 高应变率下的材料 [M]. 唐志平等译. 合肥: 中国科学技术大学, 1992. Zener C, Hollomon J H. Effect of Strain Rate upon Plastic Flow of Steel [J]. J Appl Phys, 1944, 15: 22-32. Meyers M A, Wittman C L. Effect of Metallurgical Parameters on Shear Band Formation in Low-Carbon Steels [J]. Metallurgical Transactions A, 1990, 21A: 3153-3164.
点击查看大图
计量
- 文章访问数: 7637
- HTML全文浏览量: 635
- PDF下载量: 617