Three-dimensional viscoelastic model with nonconstant coefficients

被引:11
|
作者
Fafard, M [1 ]
Boudjelal, MT
Bissonnette, B
Cloutier, A
机构
[1] Univ Laval, Grp Interdisciplinaire Rech Elements Finis, Quebec City, PQ G1K 7P4, Canada
[2] Univ Laval, Dept Civil Engn, Quebec City, PQ G1K 7P4, Canada
[3] Univ Laval, Ctr Rech Interuniv Beton, Quebec City, PQ G1K 7P4, Canada
[4] Univ Laval, Dept Wood & Forest Sci, Quebec City, PQ G1K 7P4, Canada
来源
JOURNAL OF ENGINEERING MECHANICS-ASCE | 2001年 / 127卷 / 08期
关键词
D O I
10.1061/(ASCE)0733-9399(2001)127:8(808)
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This paper presents a fully 3D viscoelastic model to predict the creep and relaxation behavior of anisotropic materials. This model is based on a phenomenological approach using internal variables and is applicable to nonconstant coefficients. The analytical solution of the set of thermodynamic equations is presented using the reduced time approach in conjunction with modal space. The particular case of isotropic material is presented. Ln addition, from the general 3D model, the analytical solution in 1D is derived and a connection with the classical rheological model is made. Finally, the model is calibrated and assessed with creep test data for concrete in tension and a parameter sensitivity analysis is performed.
引用
收藏
页码:808 / 815
页数:8
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