# [1]陈俊岭,李哲旭,舒文雅,等.不同应变率下Q345钢材力学性能试验研究[J].东南大学学报(自然科学版),2015,45(6):1145-1150.[doi:10.3969/j.issn.1001-0505.2015.06.022] 　Chen Junling,Li Zhexu,Shu Wenya,et al.Experimental study on dynamic mechanical behavior of Q345 steel under different strain rates[J].Journal of Southeast University (Natural Science Edition),2015,45(6):1145-1150.[doi:10.3969/j.issn.1001-0505.2015.06.022] 点击复制 不同应变率下Q345钢材力学性能试验研究() 分享到： var jiathis_config = { data_track_clickback: true };

45

2015年第6期

1145-1150

2015-11-20

## 文章信息/Info

Title:
Experimental study on dynamic mechanical behavior of Q345 steel under different strain rates

Author(s):
College of Civil Engineering, Tongji University, Shanghai 200092, China

Keywords:

TU391
DOI:
10.3969/j.issn.1001-0505.2015.06.022

Abstract:
Quasi-static and dynamic tensile tests of Q345 steel were performed with INSTRON and Zwick/Roell HTM5020 testing machine. Simulations of these tensile tests under different strain rates were developed using LS-DYNA of ANSYS. And their true stress-strain relationships after necking were obtained through a hybrid experimental-numerical method. The simulation results show that the true stress-strain relationship of Q345 steel can be approximately described with Ludwik model at quasi-static strain rates and with Voce model at higher strain rates. The linear combination of Hollomon and Voce(H/V-R)model is adopted to fit the experimental data. The results show that the H/V-R model can predict the strain rate effects of Q345 steel although there is still a little deviation between the experimental and fitting results. To establish a better constitutive model, the Wagoner rate law is introduced into the H/V-R model. Then an empirical constitutive model H/V-R2 which can reflect the strain rate effect of Q345 steel accurately is finally obtained by further improvement.

## 参考文献/References:

[1] Khandelwal K, El-Tawil S, Sadek F. Progressive collapse analysis of seismically designed steel braced frames [J]. Journal of Constructional Steel Research, 2009, 65(3): 699-708.
[2] Kim J, Kim T. Collapse analysis of steel moment frames with various connections [J]. Journal of Constructional Steel Research, 2010, 65(6): 1316-1322.
[3] Chen J L, Peng W B, Ma R L, et al. Strengthening of horizontal bracing on progressive collapse resistance of multistory steel moment frame [J]. Journal of Performance of Constructed Facilities, 2012, 26(5): 720-724.
[4] Bunshan R T. Techniques in metals research [M]. New York: Interscience, 1971.
[5] Singh N K, Cadoni E, Singha M K, et al. Dynamic tensile behavior of multi phase high yield strength steel [J]. Materials & Design, 2011, 32(10): 5091-5098.
[6] Boyce B L, Dilmore M F. The dynamic tensile behavior of tough, ultrahigh-strength steels at strain-rates from 0.000 2 s-1 to 200 s-1 [J]. International Journal of Impact Engineering, 2009, 36(2): 263-271.
[7] Khan A S, Baig M, Choi S H, et al. Quasi-static and dynamic responses of advanced high strength steels: experiments and modeling [J]. International Journal of Plasticity, 2012, 30-31(3): 1-17.
[8] 屈立军,李焕群,王跃琴,等.国产钢结构用Q345(16Mn)钢在恒载升温条件下的应变-温度-应力材料模型[J].土木工程学报,2008,41(7):41-47.
Qu Lijun, Li Huanqun, Wang Yueqin, et al. Strain-temperature-stress material model of Q345(16Mn)steel under elevated temperature and constant loading [J]. China Civil Engineering Journal, 2008, 41(7): 41-47.(in Chinese)
[9] 于文静,史健勇,赵金城.Q345钢材动态力学性能研究[J].建筑结构,2011,41(3):28-30,63.
Yu Wenjing, Shi Jianyong, Zhao Jincheng. Research of dynamic mechanical behavior of Q345 steel [J]. Building Structure, 2011, 41(3): 28-30, 63.(in Chinese)
[10] 中国国家标准化管理委员会.GB/T 228.1—2010金属材料拉伸试验第1部分:室温试验方法[S].北京:中国标准出版社,2011.
[11] The International Organization for Standardization. ISO 26203-2 Metallic material-tensile testing at high strain rates—part2: servo-hydraulic and other test systems [S]. Switzerland: The International Organization for Standardization, 2011.
[12] Wood K C, Schley C A, Williams M, et al. A method to calibrate a specimen with strain gauges to measure force over the full-force range in high rate testing [C]//DYMAT—International Conference on the Mechanical and Physical Behavior of Materials under Dynamic Loading. Brussels, Belgium, 2009: 265-273.
[13] 朱俊儿,曾龙,马令晨,等.一种针对颈缩现象的高强钢板材力学行为研究方法[C]//第十六届汽车安全技术学术会议.杭州,2013:282-293.
Zhu Juner, Zeng Long, Ma Lingchen, et al. A hybrid experimental-numerical converse method for the necking behavior study of high strength steel sheets [C]//The 16th Conference of Automotive Safety Technology. Hangzhou, China, 2013: 282-293.(in Chinese)
[14] Ludwik P. Elemente der technologischen mechanik [M]. Berlin: Springer-Verlag, 1909.
[15] Voce E. The relationship between stress and strain for homogeneous deformation [J]. Journal of the Institute Metals, 1948, 74: 537-562.
[16] Johnson G R, Cook W H. A constitutive model and data for metals subjected to large strains, high strain rates and high temperatures [C]//Proceedings of the 7th International Symposium on Ballistics. The Hague, Netherlands, 1983: 541-547.
[17] Cowper G R, Symonds P S. Strain-hardening and strain-rate effects in the impact loading of cantilever beams [R]. Providence, RI, USA: Brown University, 1957.
[18] Sung J H, Kim J H, Wagoner R H. A plastic constitutive equation incorporating strain, strain-rate, and temperature [J]. International Journal of Plasticity, 2010, 26(12): 1746-1771.
[19] Kim J H, Kim D, Han H N, et al. Strain rate dependent tensile behavior of advanced high strength steels: experiment and constitutive modeling [J]. Materials Science & Engineering: A, 2013, 559: 222-231.

## 相似文献/References:

[1]谢甫哲,舒赣平,凤俊敏.基于抽柱法的钢框架连续倒塌分析[J].东南大学学报(自然科学版),2010,40(1):154.[doi:10.3969/j.issn.1001-0505.2010.01.029]
Xie Fuzhe,Shu Ganping,Feng Junmin.Progressive collapse analysis of steel frame structure using removing column method[J].Journal of Southeast University (Natural Science Edition),2010,40(6):154.[doi:10.3969/j.issn.1001-0505.2010.01.029]