Microplane model M4 for concrete. II: Algorithm and calibration

被引:106
作者
Caner, FC [1 ]
Bazant, ZP [1 ]
机构
[1] Northwestern Univ, Dept Civil Engn, Evanston, IL 60208 USA
来源
JOURNAL OF ENGINEERING MECHANICS-ASCE | 2000年 / 126卷 / 09期
关键词
D O I
10.1061/(ASCE)0733-9399(2000)126:9(954)
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This paper represents Part Ii of a two-part study in which a new improved version of the microplane constitutive model for damage-plastic behavior of concrete in 3D is developed. In Part II, an explicit numerical algorithm for model M4 is formulated, the material parameters of model. M4 are calibrated by optimum fitting of the basic test data available in the literature, and the model is verified by comparisons with these data. The data in which strain localization must have occurred are delocalized, and the size effect is filtered out from the data where necessary. Although model M4 contains many material parameters, all but four have fixed values for all types of concretes. Thus the user needs to adjust only four free material parameters to the data for a given concrete, for which a simple sequential identification procedure is developed. If the user's data consist only of the standard compression strength and the strain at uniaxial stress peak, the adjustment is explicit and immediate. Good agreement with an unusually broad range of material test data is achieved.
引用
收藏
页码:954 / 961
页数:8
相关论文
共 25 条
[1]  
ASCHL H, 1976, STRENGTH STRESS STRA
[2]  
BALMER GG, 1949, SP23 US DEP INT BUR
[3]  
Bazant Z.P., 1991, Stability of Structures: Elastic, Inelastic, Fracture, and Damage Theories
[4]  
Bazant ZP, 2000, J ENG MECH, V126, P962
[5]  
Bazant ZP, 1996, J ENG MECH-ASCE, V122, P255
[6]  
Bazant ZP, 2000, J ENG MECH-ASCE, V126, P971
[7]  
Bazant ZP, 2000, J ENG MECH-ASCE, V126, P944
[8]  
Bazant ZP, 1996, J ENG MECH-ASCE, V122, P245
[9]  
BAZANT ZP, 1986, J AM CONCRETE I, V83, P553
[10]  
BAZANT ZP, 1988, J ENG MECH-ASCE, V114, P1689