YE Bing1, LI Rui1, LUO Shiting2, HU Xianqun2, LI Xiaozhang1
1.Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming 650000, China;
2.Kunming Engineering Corporation Planning Limited Power China, Kunming 650000, China
Abstract：At present, steel products are widely applied in long-span bridge engineering of our country, thickness of steel plate day-to-day increases.Increase in steel plate’s thickness causes change of its stress-strain state and serious central segregation phenomena to more easily reduce toughness in steel plate’s thickness direction, this phenomenon is particularly prominent under low-temperature environment.The current code lacks provisions for impact tests of thick steel plates.Here, according to test data of low-temperature impact toughness of thick steel plates, effects of steel plate’s thickness variation on its impact toughness were explored.Boltzmann function was used to fit test results.The study results provided a reference for choosing impact toughness value of thick steel plates in engineering.
叶兵1,李睿1，罗仕庭2，胡贤群2，李晓章1. 钢结构厚板的冲击韧性研究[J]. 振动与冲击, 2020, 39(5): 267-271.
YE Bing1, LI Rui1, LUO Shiting2, HU Xianqun2, LI Xiaozhang1. Impact toughness of thick steel plates. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(5): 267-271.
[1] Kuwanura H，Iyama J，Matsui K.Effects of Material Toughness and Plate Thickness on Brittle Fracture of Steel Members[J]. Journal of Structural Engineering, 2003，129(11):1471-1483
[2] Wang Y Q, Zhou H，Shi Y J，et al. Study on FractureToughness Indices of Chinese Structural Steel and Weld Metal [C]//20th Inter- national Offshore and Polar Engineering Co- nference. Beijing: 2010: 129-134.
[3] 贾单锋，王元清，崔佳，等.Q345qD对接焊缝疲劳性能及断裂机理试验研究[J]. 钢结构,2017,05(32):41-45.
JIA Shan-feng, WANG Yuan-qing, CUI Jia, et al. Experimental Research On Fatigue Performance And Fracture Mechanism Of Q345QD Butt WeldsJ]. Steel Structure 2017, 05(32):41-45.
[4] 王元清，奚望，石永久 钢轨钢材低温冲击功的试验研究[J]清华大学学报(自然科学版)，2007,47(9) :1414-417.
WANG Yuan-qing, YU Wang, SHI Yong-zheng Experimental study of the impact toughness of rail steel at low temperatures [J] Journal of Tsinghua University(Natural Science), 2007, 47(9): 1414-417.
[5] 王元清，廖小伟，贾单锋，等.钢结构的低温疲劳性能研究进展综述[J].建筑钢结构进展 2018,20(1) :1-11.
WANGY uan-qing,LIAO Xiao-wei, WANG Yuan-qing, et al.Ove-rview of Research Progress for the Low-Temperatu-re Fatigue Performance of Steel Structures [J].Progress in Construction Steel Structure 2018,20(1) :1-11.
[6] 王元清，胡宗文，石永久，等. 钢结构厚板低温冲击韧性试验研究[J].哈尔滨工程大学学报2010,31(9) :1179-1184
WANG Yuan-qing, HU Zong-wen, SHI Yong-jiu.et al. Testing the impact resistance of thick structural steel plate at low tempcraturcs [J].Journal of Harbin Engineering University,2010.31(9):1179-1181. (in Chinese)
[7] 王元清，林云，石永久.高强钢.Q460C对接焊缝低温冲击韧性试验[J].沈阳建筑大学学报(自然科学版),2015 (6) :971-980.
WANG Yuan-qing,LIN Yun, SHI Yong-zheng.High-temperature impact toughness test of butt weld of Q460C[J].Journal of Shenyang Jianzhu University(Natural Science),2015 (6):971-980.
[8] 国家质量监督检验检疫总局GB/T229-2007 金属材料夏比摆锤冲击试验方法[S]北京:中国标准出版社，2008
General Administration oI Quality Supervision, Inspection and Quarantine of the People’s Republic of China. GB/T229-2007 Metallic material-Charpy pendulum impact test method [S] .Beijing:Standards Press of China,2008)
[9] 国家质量监督检验检疫总局GB/T1591- 2008 低合金高强度结构钢[S]北京:中国标准出版社，
General Administration oI Quality Supervision, Inspection and Quarantine of the People’s Republic of China. GB/T1591- 2008 High strength low alloy structural steel [S] .Beijing:Standards Press of China,2008)
[10] 聂良学，许金余，任韦波，等.钢不同温度及加载速率对混凝土冲击变形韧性影响[J].振动与冲击 2015,34(6) :67-71.
NIE Liang-xue，XU Jin-yu，REN Wei-bo, et al. Effects of temperature and impact velocity on impact deformation and toughness of concrete [J]. Journal of Vibration and Shock 2015,34(6) :67-71.
[11] 张顺先，张肖宁，徐伟，等.基于冲击韧性的钢桥面铺装环氧沥青混凝土疲劳性能设计研究[J]. 振动与冲击2013,32(23) :1-4.
ZHANG Shun-xian，ZHANG Xiao-ning，XU wei et al. Ep-oxy asphalt concrete fatigue performance design for ast-eel bridge deck pavement based on impact toughness [J]. Journal of Vibration and Shock 2013,32(23) :1-4.
[12] FEMA-355A, 2000 State of the Art Report on Base Metals and Fracture[R]Prepared by the SAC ,Joint Venture for the Federal Emergency Management Agency,Washington ，DC.
[13] 陈训浩.中心偏析原因、危害、评定及预防[J]冶金标准化与质量，1998 (4) : 12-7
CHEN Xunhao. Central segregation cment，harm，assessment and prevention [J].Metallurgical Standardization & Quality 1998 (4):12-7
[14] 余启明. 桥粱钢断裂韧性CTOD试验与仿真分析研究[D].武汉理工大学，2010
YU Qi-ming. CTOD fracture toughness tests and numerical simulation for bridge steel [D]. Wuhan University of Technology, 2010
[15] 赵建平，张秀敏，沈士明.材料韧脆转变温度数据处理方法探讨[J].石油化工设备，2004，33(4):29-32
ZHAO Jian-ping,ZHANG Xiu-min,SHEN Shi-ming.Discussion on Data Processing Method of Material Toughness and Brittle TransitionTemperature[J].Petrochemical Equipme-nt,2004,33(4):29-32.
