土体动非线性黏弹性模型及其ABAQUS软件的实现

›› 2007, Vol. 28 ›› Issue (3): 436-442.

土体动非线性黏弹性模型及其ABAQUS软件的实现

庄海洋¹，陈国兴¹，梁艳仙¹，徐明²

1.南京工业大学岩土工程研究所，南京 210009；2.美国ABAQUS软件公司北京办事处，北京 100045

收稿日期:2005-05-08 出版日期:2007-03-10 发布日期:2013-08-28
作者简介:庄海洋，1978年生，博士研究生，主要从事土动力学和土-结构静、动力相互作用及其防震减灾。
基金资助:
国家自然科学基金（No.50578076）和江苏省自然科学基金（No.BK2004124）联合资助

A developed dynamic viscoelastic constitutive relations of soil and implemented by ABAQUS software

ZHUANG Hai-yang¹, CHEN Guo-xing¹, LIANG Yan-xian¹, XU Ming²

1. Institute of Geotechnical Engineering, Nanjing University of Technology, Nanjing 210009, China; 2. Beijing Representative Office of ABAQUS Inc., Beijing 100045, China

Received:2005-05-08 Online:2007-03-10 Published:2013-08-28

摘要/Abstract

摘要： 基于土的动应力-应变关系——Davidenkov骨架曲线，采用破坏剪应变幅上限值作为分界点，对Davidenkov骨架曲线进行了修正，即当剪应力值大于破坏剪应力值时，土体产生破坏，土体的动剪切模量采用破坏后的动剪切模量；参考Mashing法则，构造了修正后的Davidenkov骨架曲线土体加卸载对应的应力-应变滞回圈曲线。基于ABAQUS软件的操作平台，开发了土体动弹塑性本构模型的子程序。选择南京某个典型软弱场地为研究对象，首先输入余弦加速度时程曲线，然后选取一条强震加速度记录作为基岩输入地震动，对不同峰值加速度水平下该场地的地震反应进行了二维有限元非线性分析，计算结果验证了所建模型的准确性和可用性。

关键词: 土体动非线性黏弹性模型, 软弱场地, 非线性地震反应分析, ABAQUS软件

Abstract: Based on the one dimension dynamic stress-strain relation Davidenkov skeleton curve, which is corrected by using sectional functions; and the upper limit of failure shear strain amplitude is used as the sectional point. The dynamic shear stress-strain circle curves are constituted by referencing Mashing rules and implemented by sub-program based on ABAQUS finite-element software. A representative soft site in Nanjing City is selected; and its dynamic nonlinear response are calculated when a cosine time-history curve and seismic acceleration waves with different peak values are inputted from bedrock interface. The results prove that the developed dynamic elastoplastic constitutive relations of soil are feasible and accurate; and it can be used to investigate the nonlinear earthquake response analysis of general site.

Key words: dynamic nonlinear viscoelastic constitutive relations of soil, soft site, nonlinear earthquake response analysis, ABAQUS software

中图分类号:

O 344.3

庄海洋，陈国兴，梁艳仙，徐明. 土体动非线性黏弹性模型及其ABAQUS软件的实现[J]. , 2007, 28(3): 436-442.

ZHUANG Hai-yang, CHEN Guo-xing, LIANG Yan-xian, XU Ming. A developed dynamic viscoelastic constitutive relations of soil and implemented by ABAQUS software[J]. , 2007, 28(3): 436-442.

参考文献

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

本文评价

推荐阅读 10

[1]	马青，赵均海，魏雪英. 基于统一强度理论的巷道围岩抗力系数研究[J]. , 2009, 30(11): 3393 -3398 .
[2]	崔凯，谌文武，张景科，韩文峰，梁收运. 多元层状边坡土体风蚀速率与微结构参数关系[J]. , 2009, 30(9): 2741 -2746 .
[3]	荚颖，唐小微，栾茂田. 砂土液化变形的有限元-无网格耦合方法[J]. , 2010, 31(8): 2643 -2647 .
[4]	潘岳，李爱武，戚云松. 对“岩石蠕变变形的混沌特性研究”的讨论[J]. , 2010, 31(11): 3688 -3692 .
[5]	彭从文，朱向荣，王金昌. 基于渐近展开法的脆性岩石双尺度方法初步研究[J]. , 2011, 32(1): 51 -62 .
[6]	朱晟，张美英，戴会超. 土石坝沥青混凝土心墙力学参数反演分析[J]. , 2009, 30(3): 635 -639 .
[7]	薛云亮，李庶林，林峰，徐宏斌. 考虑损伤阀值影响的钢纤维混凝土损伤本构模型研究[J]. , 2009, 30(7): 1987 -1992 .
[8]	崔素丽，张虎元，刘吉胜，梁健. 混合型缓冲回填材料膨胀变形试验研究[J]. , 2011, 32(3): 684 -691 .
[9]	李旭，张利民，敖国栋. 失水过程孔隙结构、孔隙比、含水率变化规律[J]. , 2011, 32(S1): 100 -105 .
[10]	邓华锋，李建林，刘杰，朱敏，郭靖，鲁涛. 考虑裂隙水压力的岩体压剪裂纹扩展规律研究[J]. , 2011, 32(S1): 297 -0302 .