Computer simulation of fracture processes of concrete

Leave Comment

Computer simulation of fracture processes of concrete ...

2004-6-1  Mesolevel simulations were used to describe fracture processes in concrete. A new stochastic–heuristic algorithm was developed for generating the composite structure of concrete in 3-D space, producing specimens with comparably high aggregate content and realistic distribution.

Get price

Computer simulation of fracture processes of concrete ...

2004-6-1  OSTI.GOV Journal Article: Computer simulation of fracture processes of concrete using mesolevel models of lattice structures

Get price

Computer simulation of fracture processes of concrete ...

Mesolevel simulations were used to describe fracture processes in concrete. A new stochastic–heuristic algorithm was developed for generating the composite structure of concrete in 3-D space ...

Get price

COMPUTER SIMULATION OF FRACTURE PROCESSES OF CONCRETE ...

COMPUTER SIMULATION OF FRACTURE PROCESSES OF CONCRETE USING MESOLEVEL MODELS OF LATTICE STRUCTURES. This article reports on a study that used mesolevel simulations to describe fracture processes in concrete. The authors developed a new stochastic-heuristic algorithm for generating the composite structure of concrete in 3-D space, producing ...

Get price

NUMERICAL SIMULATION OF FRACTURE PROCESS OF

2010-1-22  NUMERICAL SIMULATION OF FRACTURE PROCESS OF CONCRETE MODEL BY RIGID BODY SPRING METHOD Kouhei NAGAI*1, Yasuhiko SATO* 2, Tamon UEDA* 2 and Yoshio KAKUTA* ABSTRACT: In meso-scopic level, concrete consists of mortar and aggregate.Rigid Body Spring Method is a useful analytical method to simulate discrete behavior like fracture.

Get price

Peridynamic Modeling and Simulation of Fracture Process

Computer Modeling in ... Peridynamic Modeling and Simulation of Fracture Process in Fiber-Reinforced Concrete ZhuangChen1 andXihuaChu1,2,* ... simulations of the paper [49] show that the ...

Get price

Computational model of mesoscopic structure of concrete ...

2007-9-1  This paper describes mathematical modelling and computational tool for simulation of fracture processes of cementitious composites at the mesoscopic level. The tool relies on highly realistic 3D- and 2D-representations of the heterogeneous internal structure of concrete for understanding the micromechanics of aggregate–matrix interactions.

Get price

Numerical simulation of the fracture process in concrete ...

2013-1-23  The above results verify the applicability of our pressure model and demonstrate that the fracture process resulting from the deflagration of NM can be evaluated by DFPA. Thus, the simulation of the fracture process by DFPA could clarify the mechanism of concrete fracture due to the deflagration of NM. We discuss the DFPA result in the following.

Get price

Meso-fracture simulation of cracking process in concrete ...

2018-2-10  A mesoscopic peridynamic (PD) model is proposed for meso-fracture simulation of cracking process in concrete. In the novel procedure of implementing PD in the traditional framework of the finite element method, truss elements with appropriate stiffness properties are used to represent the PD bonds.

Get price

Numerical simulation on shear fracture process of concrete ...

2002-12-1  The numerical simulation of the damage and fracture processes of concrete structures has evolved considerably in the past years. In this contribution, a newly proposed mechanical model is used to simulate the fracture behavior of double-edge notched (DEN) and double central notched (DCN) concrete specimens loaded in shear.

Get price

NUMERICAL SIMULATION OF FRACTURE PROCESS OF

2010-1-22  NUMERICAL SIMULATION OF FRACTURE PROCESS OF CONCRETE MODEL BY RIGID BODY SPRING METHOD Kouhei NAGAI*1, Yasuhiko SATO* 2, Tamon UEDA* 2 and Yoshio KAKUTA* ABSTRACT: In meso-scopic level, concrete consists of mortar and aggregate.Rigid Body Spring Method is a useful analytical method to simulate discrete behavior like fracture.

Get price

[PDF] NUMERICAL SIMULATION OF FRACTURE PROCESS OF CONCRETE ...

In meso-scopic level, concrete consists of mortar and aggregate. Rigid Body Spring Method is a useful analytical method to simulate discrete behavior like fracture. This study presents constitutive models for mortar and mortar-aggregate interface in meso level and simulates fracture process of mortar and simplified concrete model. To formulate arbitrary crack path, the Voronoi diagram is ...

Get price

Simulation Study of Fracture Process of Concrete ...

On the assumption that the concrete is a multi-phases composite material composed of matrix, aggregate and the bonding interface, the failure progress of concrete is simulated. It requires that numerical method not only can simulate forces and stresses, the failure growth and contacts, but also can simulate the discontinuities such as joints and cracks,the large deformation after the failure ...

Get price

Peridynamic Modeling and Simulation of Fracture Process

Computer Modeling in ... Peridynamic Modeling and Simulation of Fracture Process in Fiber-Reinforced Concrete ZhuangChen1 andXihuaChu1,2,* ... simulations of the paper [49] show that the ...

Get price

Numerical simulation of the fracture process in concrete ...

2013-1-23  The above results verify the applicability of our pressure model and demonstrate that the fracture process resulting from the deflagration of NM can be evaluated by DFPA. Thus, the simulation of the fracture process by DFPA could clarify the mechanism of concrete fracture due to the deflagration of NM. We discuss the DFPA result in the following.

Get price

Peridynamic Modeling and Simulation of Fracture Process in ...

fracture beha vior of ber-reinforced concrete, i ncluding the conver gence study, the tensi le test of a plate with a single ber , the tensile test of a plate with two semi-circle notches, and the ...

Get price

Meso-fracture simulation of cracking process in concrete ...

2018-2-10  Fracture simulation in high strength concrete. As well known, the crack propagation path and crack pattern in high strength concrete (HSC) are different with that in normal concrete. To investigate the effect of concrete performance on fracture process, numerical simulations in HSC were carried out with the proposed model.

Get price

Simulation of fracture in plain concrete modeled as a ...

2005-12-25  A composite model is used to represent the heterogeneity of plain concrete consisting of coarse aggregates, mortar matrix and the mortar-aggregate interface. The composite elements of plain concrete are modeled using triangular finite element units which have six interface nodes along the sides. Fracture is captured through a constitutive single branch softening-fracture law at the interface ...

Get price

Numerical Simulation of Fracture Process of Three-Point ...

Taking into account the initial damage and the accumulation of damage of concrete, Mazars damage model was modified. Based on the modified Mazars damage model, combined with finite element software ANSYS, the fracture failure process of the three-point bending notched beam of concrete was simulated. The initiation load Pini and maximum load Pmax of the three-point bending beam were

Get price

Mesoscopic numerical simulation of fracture process and ...

2020-7-4  A 2D random circular aggregate model of cement mortar was established. The numerical simulation of the uniaxial static compression is carried out, the stress–strain curve, damage process, and damage model are obtained. The strength of the interfacial transition zone and the failure process

Get price

NUMERICAL SIMULATION OF FRACTURE PROCESS OF

2010-1-22  NUMERICAL SIMULATION OF FRACTURE PROCESS OF CONCRETE MODEL BY RIGID BODY SPRING METHOD Kouhei NAGAI*1, Yasuhiko SATO* 2, Tamon UEDA* 2 and Yoshio KAKUTA* ABSTRACT: In meso-scopic level, concrete consists of mortar and aggregate.Rigid Body Spring Method is a useful analytical method to simulate discrete behavior like fracture.

Get price

Simulation Study of Fracture Process of Concrete ...

On the assumption that the concrete is a multi-phases composite material composed of matrix, aggregate and the bonding interface, the failure progress of concrete is simulated. It requires that numerical method not only can simulate forces and stresses, the failure growth and contacts, but also can simulate the discontinuities such as joints and cracks,the large deformation after the failure ...

Get price

[PDF] NUMERICAL SIMULATION OF FRACTURE PROCESS OF CONCRETE ...

In meso-scopic level, concrete consists of mortar and aggregate. Rigid Body Spring Method is a useful analytical method to simulate discrete behavior like fracture. This study presents constitutive models for mortar and mortar-aggregate interface in meso level and simulates fracture process of mortar and simplified concrete model. To formulate arbitrary crack path, the Voronoi diagram is ...

Get price

Numerical simulation of the fracture process in concrete ...

2013-1-23  The above results verify the applicability of our pressure model and demonstrate that the fracture process resulting from the deflagration of NM can be evaluated by DFPA. Thus, the simulation of the fracture process by DFPA could clarify the mechanism of concrete fracture due to the deflagration of NM. We discuss the DFPA result in the following.

Get price

Numerical simulation of damage and fracture in concrete ...

2000-9-13  Abstract. This paper addresses numerical simulation of damage and fracture in concrete from the impact and penetration of shaped charge jets. We have modeled the jet penetration process with CALE, a two dimensional arbitrary Lagrange Eulerian hydrocode.

Get price

Numerical Simulation of Fracture Process Zone in Concrete ...

In this paper, some numerical tests on the fracture process zone (FPZ) in concrete tension specimen were carried out with Material Failure Process Analysis code (MFPA2D) to investigate the behavior of the FPZ and the effect of the meso-scale heterogeneity of concrete on fracture process. The numerical results provide a clear indicator of the FPZ of concrete.

Get price

Numerical Simulation of Series Experiments of Concrete ...

With progress of the computer technology and numerical simulation method, the numerical simulation of the fracture process of concrete materials has become possible. In this paper, the numerical simulation models of the two types of samples were carried out with the SOLID65 concrete element based on the ANSYS software platform. According to the results, the non-linear characteristic of the ...

Get price

Numerical Simulation of Series Experiments of Concrete ...

With progress of the computer technology and numerical simulation method, the numerical simulation of the fracture process of concrete materials has become possible.

Get price

Numerical Simulation of Fracture Process of Three-Point ...

Taking into account the initial damage and the accumulation of damage of concrete, Mazars damage model was modified. Based on the modified Mazars damage model, combined with finite element software ANSYS, the fracture failure process of the three-point bending notched beam of concrete was simulated. The initiation load Pini and maximum load Pmax of the three-point bending beam were

Get price

(PDF) Numerical simulation of dynamic fracture of concrete ...

The effect is here illustrated on the example of concrete cylinder of normal strength concrete (Young’s modulus Ec = 35,000 MPa, Poisson’s ratio m = 0.18, tensile strength ft = 2.25 MPa, uniaxial compressive strength fc = 23 MPa and concrete fracture energy GF = 0.08 N/mm; cylinder diameter D = 50 mm and height H = 100 mm) loaded by ...

Get price
Contact us

Submit online

Please leave a message below and we will contact you as soon as possible.