Mesoscopic Simulation of Failure of Mortar and Concrete by 3D RBSM

Concrete is a heterogeneous material consisting of mortar and aggregate at the meso scale. Evaluation of the fracture process at this scale is useful to clarify the material characteristic of concrete. The authors have conducted meso scale analysis of concrete over a past few years by Rigid Body Spring Model (RBSM). In this study, three-dimensional analyses of mortar and concrete are carried out, which is necessary for the quantitative evaluation of concrete behavior especially in compression. Constitutive models at the meso scale are developed for the 3D RBSM analysis. Failure behaviors and strengths in compression and tension of mortar and concrete are predicted well by the analysis. In biaxial compression test of concrete, crack in normal direction to plane of specimen is simulated that cannot be presented by two-dimensional analysis.

[1]  Kohei Nagai,et al.  Mesoscopic Simulation of Failure of Mortar and Concrete by 2D RBSM , 2004 .

[2]  J. E. Bolander,et al.  Cohesive zone modeling of fracture in irregular lattices , 2003 .

[3]  D. J. Hannant,et al.  Discussion: The effect of aggregate concentration upon the strength and modulus of elasticity of concrete* , 1980 .

[4]  G. Nagai.  STRESS ANALYSIS OF CONCRETE MATERIAL BASED ON GEOMETRICALLY ACCURATE FINITE ELEMENT MODELING , 2022 .

[5]  Thomas T. C. Hsu,et al.  Tensile Bond Strength Between Aggregate and Cement Paste or Mortar , 1963 .

[6]  Y. Toi,et al.  Damage mechanics models for brittle microcracking solids based on three-dimensional mesoscopic simulations , 1995 .

[7]  Surendra P. Shah,et al.  Softening Response of Plain Concrete in Direct Tension , 1985 .

[8]  J. Bolander,et al.  Fracture analyses using spring networks with random geometry , 1998 .

[9]  David Darwin,et al.  STRAIN-RATE SENSITIVE BEHAVIOR OF CEMENT PASTE AND MORTAR IN COMPRESSION , 1990 .

[10]  Hajime Okamura,et al.  REVALUATION OF THE EQUATION FOR SHEAR STRENGTH OF REINFORCED CONCRETE BEAMS WITHOUT WEB REINFORCEMENT , 1986 .

[11]  Kiyoshi Kato.  MICROCRACKS AND PHYSICAL PROPERTIES OF PLAIN CONCRETE , 1971 .

[12]  Michael D. Kotsovos,et al.  Effect of testing techniques on the post-ultimate behaviour of concrete in compression , 1983 .

[13]  M. Stroeven,et al.  SPACE Approach to Concrete's Space Structure and its Mechanical Properties , 2001 .

[14]  B. Broms,et al.  Shear Bond Strength Between Coarse Aggregate and Cement Paste or Mortar , 1964 .

[15]  Tamon Ueda,et al.  NUMERICAL SIMULATION OF FRACTURE PROCESS OF CONCRETE MODEL BY RIGID BODY SPRING METHOD , 2002 .

[16]  Yukio Aoyagi,et al.  STRENGTH AND DEFORMATION CHARACTERISTICS OF REINFORCED CONCRETE SHELL ELEMENTS SUBJECTED TO IN-PLANE FORCES , 1983 .

[17]  Mitsuyasu Iwanami,et al.  FORMULATION OF STRESS-STRAIN RELATIONSHIP OF CONCRETE CONSIDERING THE LOCALIZED COMPRESSIVE FAILURE ZONE , 2003 .

[18]  J. Mier,et al.  3D lattice type fracture model for concrete , 2003 .

[19]  P. Nepper-christensen,et al.  MODAL DETERMINATION OF THE EFFECT OF BOND BETWEEN COARSE AGGREGATE AND MORTAR ON THE COMPRESSIVE STRENGTH OF CONCRETE , 1968 .

[20]  Oral Buyukozturk,et al.  SIZE EFFECT AND INFLUENCE OF AGGREGATE ROUGHNESS IN INTERFACE FRACTURE OF CONCRETE COMPOSITES , 1998 .

[21]  Gro Markeset,et al.  Softening of concrete in compression — Localization and size effects , 1995 .

[22]  Tadahiko Kawai,et al.  New discrete models and their application to seismic response analysis of structures , 1978 .

[23]  Kurt H. Gerstle,et al.  Behavior of Concrete Under Biaxial Stresses , 1969 .

[24]  K. Terada,et al.  Meso-scopic numerical analysis of concrete structures by a modified lattice model , 2003 .

[25]  Akira Wada,et al.  ON A FINITE ELEMENT PROCEDURE BASED ON THE REAL 3-DIMENSIONAL IMAGE FOR CONCRETE MATERIALS , 1998 .

[27]  Menashi D. Cohen,et al.  INFLUENCE OF AGGREGATE SURFACE AREA ON MECHANICAL PROPERTIES OF MORTAR , 1999 .

[28]  Minoru Ueda,et al.  FRACTURE MECHANISM OF PLAIN CONCRETE UNDER UNIAXIAL TENSION , 1993 .

[29]  Tadahiko Kawai,et al.  NEW ELEMENT MODELS IN DISCRETE STRUCTURAL ANALYSIS , 1977 .

[30]  P. Cundall,et al.  A discrete numerical model for granular assemblies , 1979 .

[31]  Wai-Fah Chen.  Plasticity in reinforced concrete , 1982 .

[32]  J. Mier,et al.  Multiaxial strain-softening of concrete , 1986 .

[33]  Gianluca Cusatis,et al.  Confinement-Shear Lattice Model for Concrete Damage in Tension and Compression: I. Theory , 2002 .

[34]  L. Cedolin,et al.  Fracturing material models based on micromechanical concepts: recent advances , 2004 .

[35]  Gianluca Cusatis,et al.  CONFINEMENT-SHEAR LATTICE MODEL FOR CONCRETE DAMAGE IN TENSION AND COMPRESSION: II. COMPUTATION AND VALIDATION , 2003 .