金属板材循环拉压加载中力学行为的演化

doi:10.3901/JME.2019.04.033

机械工程学报 ›› 2019, Vol. 55 ›› Issue (4): 33-41.doi: 10.3901/JME.2019.04.033

金属板材循环拉压加载中力学行为的演化

于高潮^1,2, 赵军^1,2

1. 先进锻压成形技术与科学教育部重点实验室(燕山大学) 秦皇岛 066004;
2. 燕山大学机械工程学院秦皇岛 066004

收稿日期:2018-03-26 修回日期:2018-08-01 出版日期:2019-02-20 发布日期:2019-02-20
通讯作者: 赵军(通信作者),男,1957年出生,博士,教授,博士研究生导师。主要从事板材成形及其智能化控制技术和精密塑性成形技术研究。E-mail:zhaojun@ysu.edu.cn
作者简介:于高潮,男,1988年出生,博士,讲师。主要研究方向为板管成形理论及新工艺和板材智能成形技术。E-mail:ygc@ysu.edu.cn
基金资助:
国家自然科学基金（51575473）、河北省钢铁联合研究基金（E2016203209）和燕山大学博士基金（BL18024）资助项目

Evolution of Mechanical Properties in Cyclic Tension-compression Loading on Sheet Metal

YU Gaochao^1,2, ZHAO Jun^1,2

1. Key Laboratory of Advanced Forging & Stamping Technology and Science(Yanshan University) of Ministry of Education, Qinhuangdao 066004;
2. College of Mechanical Engineering, Yanshan University, Qinhuangdao 066004

Received:2018-03-26 Revised:2018-08-01 Online:2019-02-20 Published:2019-02-20

摘要/Abstract

摘要： 在曲梁往复弯曲过程中，曲梁上任意质点均发生循环拉压加载变形，但目前对往复弯曲过程中的力学行为仍不明确。为深入认识往复弯曲变形过程中宏观力学行为的演化规律，采用对称恒应变幅控制方式进行低周次不同应变幅值条件下的小应变循环拉压加载试验，研究了304不锈钢和ST12冷轧板两种材料循环拉压加载条件下的宏观力学表现，探究了弹性模量、屈服应力和塑性模量随循环周次的变化规律和预应变对稳定滞后回线的影响。试验研究表明：304不锈钢和ST12两种材料均具有循环软化特性；经循环拉压加载后，两种材料的弹性模量、屈服应力和塑性模量发生明显改变，而且拉压不具有一致性；循环拉压加载可湮灭预应变造成的材料力学性能初始差异，使材料力学性能变得均匀一致，也间接证明了往复弯曲可将同层纤维力学性能均匀化，为新本构关系的构建奠定了基础。

关键词: 金属板材, 力学行为, 往复弯曲, 循环拉压, 循环软化, 预应变

Abstract: In the process of reciprocating bending, any particle of the curved beam is subjected to cyclic tension-compression deformation. However, the mechanical behaviour of reciprocating bending is still not clear. In order to understand the evolution law of macroscopic mechanical behaviour in the process of reciprocating bending, the small strain cyclic tension-compression test of low cycle is carried out by the symmetric constant strain amplitude control model. The macroscopic performance on the 304 stainless steel and ST12 cold rolled plate under cyclic tension-compression loading is studied; the variation laws of elastic modulus, yield stress and plastic modulus with cycle times are investigated; the effect of prestrain is studied on the stable hysteresis loop. The experimental results show that 304 stainless steel and ST12 cold rolled plate are characterized by cyclic softening; after cyclic tension-compression loading, the elastic modulus, yield stress and plastic modulus of the two kinds of materials change obviously, and the tension and compression do not have consistency; cyclic tension-compression loading can annihilate the initial difference of mechanical properties caused by prestrain, and make the mechanical properties of materials become uniform. It is also indirectly proved that reciprocating bending can make the mechanical properties of the same layer of fibers be homogenized, which lays the foundation for the construction of the new constitutive relationship.

Key words: cyclic softening, cyclic tension-compression, mechanical behaviour, prestrain, reciprocating bending, sheet metal

中图分类号:

TG304

于高潮, 赵军. 金属板材循环拉压加载中力学行为的演化[J]. 机械工程学报, 2019, 55(4): 33-41.

YU Gaochao, ZHAO Jun. Evolution of Mechanical Properties in Cyclic Tension-compression Loading on Sheet Metal[J]. Journal of Mechanical Engineering, 2019, 55(4): 33-41.

参考文献

[1] 于高潮,赵军,邢娇娇,等. 对称式三辊矫圆工艺研究[J]. 机械工程学报,2017,53(14):136-143. YU Gaochao,ZHAO Jun,XING Jiaojiao,et al. Research on the symmetrical three-roller setting round process[J],Journal of Mechanical Engineering,2017,53(14):136-143.
[2] ZHAO Jun,YU Gaochao,MA Rui. A mechanical model of symmetrical three-roller setting round process:The static bending stage[J]. Journal of Materials Processing Technology,2016,231:501-512.
[3] YU Gaochao,ZHAO Jun,ZHAI Ruixue,et al. Theoretical analysis and experimental investigations on the symmetrical three-roller setting round process[J]. International Journal of Advanced Manufacturing Technology,2018,94:45-56.
[4] YU Gaochao,ZHAI Ruixue,ZHAO Jun,et al. Theoretical analysis and numerical simulation on the process mechanism of two-roller straightening[J]. International Journal of Advanced Manufacturing Technology,2018,9(9-12):4011-4021.
[5] 于高潮,赵军,马瑞,等. 往复弯曲统一曲率定理及其试验验证[J]. 机械工程学报,2016,18:57-63. YU Gaochao,ZHAO Jun,MA Rui,et al. The uniform curvature theorem by reciprocating bending and its experimental verification[J]. Journal of Mechanical Engineering,2016,18:57-63.
[6] 赵永翔,王金诺,高庆. 概率循环应力-应变曲线及其估计方法[J]. 机械工程学报,2000,8:102-106. ZHAO Yongxiang,WANG Jinnuo,GAO Qing. Probabilistic cyclic stress-strain curve and its estimation method[J]. Journal of Mechanical Engineering,2000,8:102-106.
[7] 金淼,李群,蔡星周,等. 板材通过拉深筋时的循环塑性变形机理分析[J]. 机械工程学报,2013,49(12):38-42. JIN Miao,LI Qun,CAI Xingzhou,et al. Research on cyclic plastic deformation mechanism of sheet flowing through drawbead[J]. Journal of Mechanical Engineering,2013,49(12):38-42.
[8] 张庆玲,金淼,张洪生,等. 小变形循环载荷下Q235材料特性的试验研究[J]. 机械工程学报,2017,53(20):69-76. ZHANG Qingling,JIN Miao,ZHANG Hongsheng,et al. Experiment research on material characteristics of q235 under small deformation cyclic loading[J]. Journal of Mechanical Engineering,2017,53(20):69-76.
[9] 张功庭,盛光敏,黄利. 金属包申格效应的表征、影响因素与机理研究进展[J]. 材料导报,2008,22(s3):135-138. ZHANG Gongting,SHENG Guangmin,HUANG Li. Research progress in characterization,influencing factors and mechanisms of bauschinger effect in metals material[J]. Materials Review,2008,22(s3):135-138.
[10] ZANG Shunlai,LEE MG,LI Sun,et al. Measurement of the Bauschinger behavior of sheet metals by three-point bending springback test with pre-strained strips[J]. International Journal of Plasticity,2014,59(10):84-107.
[11] MUTRUX A,BERISHA B,HORA P. Prediction of cyclic softening in a medium carbon steel during cross roll straightening[J]. Journal of Materials Processing Technology,2011,211(8):1448-1456.
[12] ZHAO Kunmin. Cyclic stress-strain curve and springback simulation[D]. Ohio:The Ohio State University,1999.
[13] YOSHIDA F. A constitutive model of cyclic plasticity[J]. International Journal of Plasticity,2000,16(3-4):359-380.
[14] YOSHIDA F,UEMORI T,FUJIWARA K. Elastic-plastic behavior of steel sheets under in-plane cyclic tension-compression at large strain[J]. International Journal of Plasticity,2002,18:633-659.
[15] KHUTIA N,DEY P,HASSAN T. An improved nonproportional cyclic plasticity model for multiaxial low-cycle fatigue and ratcheting responses of 304 stainless steel[J]. Mechanics of Materials,2015,91:12-25.
[16] HU Fangxin,SHI Gang,SHI Yongjiu. Constitutive model for full-range elasto-plastic behavior of structural steels with yield plateau:Calibration and validation[J]. Engineering Structures,2016,118:210-227.
[17] ZHAO Jun,YIN Jing,MA Lixia,et al. Springback equation of small curvature plane bending[J]. Science China:Technological Sciences,2011,54(9):2386-2396.
[18] American Society of Testing Materials. Standard practice for strain-controlled fatigue testing[S]. West Conshohocken,United States,1998.
[19] ZHAO Jun,ZHAN Peipei,MA Rui,et al. Quantitative prediction of reduction in large pipe setting round process[J]. Chinese Journal of Mechanical Engineering,2013,26(4):722-729.
[20] ZHAO Jun,SONG Xiaokang. Control strategy of multi-point bending one-off straightening process for LSAW pipes[J]. International Journal of Advanced Manufacturing Technology,2014,72:1615-1624.

金属板材循环拉压加载中力学行为的演化

Evolution of Mechanical Properties in Cyclic Tension-compression Loading on Sheet Metal

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	邹玉静, 庞峰, 樊智敏. 渐开线斜齿轮传动摩擦动力学耦合研究[J]. 机械工程学报, 2019, 55(3): 109-119.
[2]	周橙, 池茂儒, 梁树林, 吴兴文, 蒋益平, 吴磊. 不同轮对结构城市轻轨低地板列车通过道岔区动力学行为分析[J]. 机械工程学报, 2019, 55(2): 98-106.
[3]	寿梦杰, 廖昌荣, 叶宇浩, 张红辉, 付本元, 谢磊. 冲击载荷下磁流变缓冲器的动力学行为[J]. 机械工程学报, 2019, 55(1): 72-80.
[4]	王罡, 任珂, 胡毅森, 叶茂, 王淑青, 融亦鸣. 基于微观组织特征的航天铝铜合金力学行为研究[J]. 机械工程学报, 2018, 54(9): 77-85.
[5]	于高潮, 赵军, 邢娇娇, 赵非平, 李森林. 对称式三辊矫圆工艺研究[J]. 机械工程学报, 2017, 53(14): 136-143.
[6]	于高潮, 赵军, 马瑞, 翟瑞雪. 往复弯曲统一曲率定理及其试验验证^*[J]. 机械工程学报, 2016, 52(18): 57-63.
[7]	吴健栋, 蔡志鹏, 汤之南, 李克俭, 王梁, 潘际銮, 霍鑫, 许晓进. 低周疲劳过程损伤变量的复合分析法和三阶段损伤演化模型[J]. 机械工程学报, 2015, 51(10): 86-95.
[8]	兰鹏;李阳;原卓浩;张家泉;张瑞天. 钢锭模用灰铸铁服役工况下的组织与力学行为研究[J]. , 2014, 50(2): 116-124.
[9]	何柏岩;孙阳辉;聂锐;李国平. 矿用刮板输送机圆环链传动系统动力学行为研究[J]. , 2012, 48(17): 50-56.
[10]	王雯;傅卫平;王更生;郝良. 具有学习能力的供应链系统的复杂动力学[J]. , 2011, 47(8): 175-182.
[11]	肖光春;荆洪阳;徐连勇. 预应变对管线钢低温断裂韧度影响研究[J]. , 2011, 47(24): 26-30.
[12]	陈明君;李洪珠;李旦. 碳纳米管力学行为研究的新进展[J]. , 2005, 41(3): 18-24.
[13]	杨庆祥;赵言辉;许志强;姚枚;高玉魁;王仁智. 渗碳及渗碳喷丸齿轮轮齿弯曲疲劳极限的定量分析[J]. , 2004, 40(7): 34-40.
[14]	董海军;沈允文;刘梦军;张锁怀. 齿轮系统Rattling动力学行为研究[J]. , 2004, 40(1): 136-141.
[15]	姚枚;王仁智. 金属材料工程力学行为学及其微细观过程理论[J]. , 2000, 36(11): 1-4.