Damage Simulation of Masonry Wall Based on the Finite Element Software Abaqus

2014 ◽  
Vol 1008-1009 ◽  
pp. 1367-1370
Author(s):  
Fu Xiao Chen ◽  
Wen Fang Zhang
Keyword(s):  
Finite Element ◽  
Damage Model ◽  
Masonry Wall ◽  
Masonry Walls ◽  
Simulation Methods ◽  
Failure Characteristics ◽  
Advantages And Disadvantages ◽  
Finite Element Software ◽  
Concrete Damage ◽  
Damage Simulation

In this paper, I use the finite element software abaqus to simulate the damage form of masonry walls in the case of force. Advantages and disadvantages of various simulation methods are fully considered. Masonry walls are considered homogeneous isotropic continuum,was built by using integrated model. And I adopt concrete damage model to define material properties. The results showed that the model in this paper well simulated the failure characteristics of the wall.

Discussion of Different Methods of Strengthening Masonry Walls with Constructional Column

2012 ◽  
Vol 226-228 ◽  
pp. 1098-1101
Author(s):  
Cheng Wang ◽  
Yong Kun Luo ◽  
Xiao Long Xu
Keyword(s):  
Finite Element ◽  
Seismic Performance ◽  
Large Scale ◽  
Rapid Development ◽  
Masonry Wall ◽  
Earthquake Resistance ◽  
Masonry Walls ◽  
Finite Element Software ◽  
Engineering Discipline ◽  
Constructional Column

With the rapid development of economy and the civil engineering discipline, the seismic performance of existing masonry wall can't satisfy the codes and regional seismic requirements. As a result, strengthening the earthquake resistance of it is put on the agenda. Using large-scale finite element software-abaqus, this paper analyzes different methods of strengthening masonry walls by constructional columns. Under the premise of the cross area of the columns used to reinforce is identical, it shows that the wall strengthened by bilateral constructional columns has a better seismic performance than by unilateral constructional column. The ductility coefficient of the former increases 49.4% than the original masonry, while the latter increases 26.3%. The bilateral constructional column could significantly improve the integrity and ductility of the masonry wall, so does the seismic performance. It has engineering sense for the strengthening work.

Mechanical Analysis of the Recycled Concrete Brick Masonry Wall under In-Plane Load

2011 ◽  
Vol 250-253 ◽  
pp. 278-282 ◽  
Author(s):  
Song Gu ◽  
Guo Ping Chen ◽  
Shui Wen Zhu
Keyword(s):  
Finite Element ◽  
Mechanical Analysis ◽  
Masonry Wall ◽  
Brick Masonry ◽  
Recycled Concrete ◽  
Masonry Walls ◽  
Fe Model ◽  
Element Analysis ◽  
Finite Element Software ◽  
Strength Capacity

The purpose of this paper was to investigate the mechanical behavior and failure mode of recycled concrete brick masonry wall under cycling in-plane load. These models of masonry walls were constructed in the laboratory and experimented under in-plane cycling load. The masonry wall was made of recycled concrete bricks joined by mortar, with gypsum lining on both faces. A simulation based on the experiment was carried out using the finite element software ANSYS. In the proposed FE model, the recycling concrete bricks and joints were modeled separately, allowing for nonlinear deformation characteristics of the two materials. The results of the experiment and the finite element analysis were analyzed and compared. When the stress distributions were taken into consideration in the experiments and solutions of ANSYS, it was observed that the stress concentration occurred on two diagonals of the masonry wall. The destruction process and characteristics of the masonry wall were obtained by the experiments. The results of finite element method matched experimental results very well. The FE software ANSYS can be used in the analysis of recycling concrete brick masonry walls under in-plane cycling load and strength capacity.

scholarly journals Gradient Nonlocal Enhanced Microprestress-Solidification Theory and Its Finite Element Implementation

2021 ◽  
Vol 8 ◽  
Author(s):  
Teng Tong ◽  
Changqing Du ◽  
Xiaofan Liu ◽  
Siqi Yuan ◽  
Zhao Liu
Keyword(s):  
Finite Element ◽  
Large Scale ◽  
Deformation Gradient ◽  
Damage Model ◽  
Reinforced Concrete Beams ◽  
Chain Model ◽  
Finite Element Software ◽  
Order Deformation ◽  
Implicit Solver

Time-dependent responses of cracked concrete structures are complex, due to the intertwined effects between creep, shrinkage, and cracking. There still lacks an effective numerical model to accurately predict their nonlinear long-term deflections. To this end, a computational framework is constructed, of which the aforementioned intertwined effects are properly treated. The model inherits merits of gradient-enhanced damage (GED) model and microprestress-solidification (MPS) theory. By incorporating higher order deformation gradient, the proposed GED-MPS model circumvents damage localization and mesh-sensitive problems encountered in classical continuum damage theory. Moreover, the model reflects creep and shrinkage of concrete with respect to underlying moisture transport and heat transfer. Residing on the Kelvin chain model, rate-type creep formulation works fully compatible with the gradient nonlocal damage model. 1-D illustration of the model reveals that the model could regularize mesh-sensitivity of nonlinear concrete creep affected by cracking. Furthermore, the model depicts long-term deflections and cracking evolutions of simply-supported reinforced concrete beams in an agreed manner. It is noteworthy that the gradient nonlocal enhanced microprestress-solidification theory is implemented in the general finite element software Abaqus/Standard with the implicit solver, which renders the model suitable for large-scale creep-sensitive structures.

Behavior of Low, Medium and High Rise Reinforced Concrete Frame with Infill Using ATENA 2D

2020 ◽  
Vol 17 (9) ◽  
pp. 4287-4293
Author(s):  
D. Santhosh ◽  
R. Prabhakara ◽  
M. D. Ragavendra Prasad
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Nonlinear Behavior ◽  
Masonry Wall ◽  
Nonlinear Behaviour ◽  
Rc Frame ◽  
Reinforced Concrete Frame ◽  
Analysis And Design ◽  
High Rise ◽  
Finite Element Software

The Low, Medium and High rise reinforced concrete (RC) buildings are common in all cities in all countries. Unreinforced masonry wall (URW) is commonly used in low, medium and high rise building as a partition wall both in interior and exterior of building. But structural designers are not considered URW in analysis and design of buildings. This URM wall as an infill plays a very important role in structure subjected to lateral load. So it is very essential to know the nonlinear behavior of low, medium and high rise frame with and without infill. To conduct experiment for understanding the nonlinear behaviour of low, medium and high rise RC frame is very expensive and need good sophisticated testing facilities. With the available many finite element softwares, it is easy to create model and to know the performance of structure. So in this study, a finite element software ATENA 2D (2003) were used to conduct nonlinear analysis for capture nonlinear behaviour of low, medium and high rise RC frame with infill and without infill. Load versus displacement graphs, magnitude of principal compressive stresses, magnitude principal tensile stresses, stress contours, and cracks pattern are used to know the performance of low, medium and high rise RC frame with infill.

Design and Analysis on Stiffeners of Coal Mine Rescue Capsules

2011 ◽  
Vol 143-144 ◽  
pp. 443-447
Author(s):  
Jian Feng Lu ◽  
Liang Liang Jin ◽  
Xu Dong Yang ◽  
Dong Sun
Keyword(s):  
Finite Element ◽  
Coal Mine ◽  
Structural Strength ◽  
Installation Space ◽  
Mechanical Theory ◽  
Maximum Deformation ◽  
Advantages And Disadvantages ◽  
Finite Element Software ◽  
Practical Factors ◽  
Mine Rescue

Coal mine rescue capsules, whose structural strength defines miners' safety directly, are becoming important equipments for miners' underground surviving. In order to improve the rescue capsule's strength, in this study two different kinds of stiffeners were put forward. The advantages and disadvantages of their performances were analyzed and compared using mechanical theory and the theoretical analysis was simulated and verified by using finite element software ABAQUS. The maximum deformation using two different kinds of stiffeners were 1.385mm and 2.26mm. Considering the size of deformation combined with practical factors, such as installation space and ease of processing etc., T-shaped stiffeners were finally adopted. Introduction

scholarly journals Influence of Chained Masonry on the Seismic Response of Reinforced Concrete Buildings

2021 ◽  
Vol 18 (16) ◽  
Author(s):  
Abdelkader NOUR ◽  
Abdelkader BENANANE ◽  
Humberto VARUM
Keyword(s):  
Numerical Simulation ◽  
Reinforced Concrete ◽  
Seismic Response ◽  
Masonry Wall ◽  
Masonry Walls ◽  
Reinforced Concrete Buildings ◽  
Seismic Code ◽  
Concrete Buildings ◽  
Finite Element Software ◽  
Algerian Seismic Code

The influence of chained masonry walls, which represents a special case of masonry infill without gap, on the seismic response of reinforced concrete buildings is extremely important due to their wide use in this type of building. We can consider the period of building as the key parameter to study this influence. In this article, we had carried out a comparative study of several 2D models of a multi-storey reinforced concrete building with a brick chained masonry wall using the response spectrum method in the ETABS finite element software, following the prescriptions of the current Algerian seismic code. This study included the use of the number of spans, the span length, the number of storeys, the thickness of the chained masonry wall, the ground soft storey, the openings in the walls, and the short column for studying the influence of these to the walls. The values from the numerical simulation were compared with those from the formula of the period of building, provided by both the Algerian and European codes. Based on the results obtained, we were able to assess the influence of chained masonry walls on the seismic response on this type of buildings. Through this article, we have concluded that these walls have a great influence on the overall behavior of reinforced concrete buildings under seismic loading. HIGHLIGHTS Clarify the importance of numerical simulation of chained masonry walls in the design of reinforced concrete buildings Give recommendations to the current Algerian seismic code for properly design the infilled buildings with chained masonry Know the great danger marked in the current conceptions, which neglect these walls in the phase of conception Give to the infilled reinforced concrete buildings an adequate design in case of earthquake loadings GRAPHICAL ABSTRACT

The Effect of Bearing Simulation on Vibration Characteristics of a Steel Box Girder Footbridge Model

2014 ◽  
Vol 1049-1050 ◽  
pp. 392-397
Author(s):  
Ju Bing Zhang ◽  
Ying Zou ◽  
Xian Zhang
Keyword(s):  
Finite Element ◽  
Beam Element ◽  
Simulation Methods ◽  
Box Girder ◽  
Vibration Signals ◽  
Finite Element Software ◽  
Steel Box Girder ◽  
Bridge Model ◽  
Element Simulation ◽  
Bridge Bearing

The measurement and finite element simulation was used to research the effect of bearing on vibration frequency of bridge. Sixteen models accelerometer was instrumented on the bridge and the vibration signals were acquired at a sampling frequency of 512 Hz. The finite element software is adopted to establish the model of the bridge. In this paper, beam element simulation and elastic connection simulation are two ways to calculate the vibrational frequencies. Through comparison, the characteristics of the two simulation methods can be known. By this study, the bridge bearing simulation model of the bridge has an obvious impact on the frequency of bridge model. At the same time, the simulation of bridge should be as close to the reality as possible to obtain more accurate data.

Loading Rate Effect on FRP-to-Concrete Bond Behaviour

2011 ◽  
Vol 250-253 ◽  
pp. 3571-3576
Author(s):  
Xiao Qin Li ◽  
Zhen Jun Yang ◽  
Jian Fei Chen ◽  
Yong Lu
Keyword(s):  
Finite Element ◽  
Good Accuracy ◽  
Loading Rate ◽  
Damage Model ◽  
Fe Model ◽  
Bond Behaviour ◽  
First Order ◽  
Concrete Damage ◽  
3D Solid ◽  
Element Study

This paper presents a preliminary finite element study on the effects of strain rate on the FRP-to-concrete bond behaviour using the K&C concrete damage model in LS-DYNA Explicit. The developed FE model uses the first-order eight-node hexahedron 3D solid element with one integration point and a sub-millimetre mesh. Results show that the model can simulate the static FRP-to-concrete bond behaviour with good accuracy and mesh objectivity. It also shows that the loading rate has significant effects on the bond behaviour.

Nonlinear Analysis of Full-Scale Beam-Column Joints of RC Frames

2012 ◽  
Vol 446-449 ◽  
pp. 811-815
Author(s):  
Er Wei Guo ◽  
Zhen Bao Li ◽  
Hua Ma ◽  
Hong Yu Zhou ◽  
Xiu Li Du ◽  
...  
Keyword(s):  
Finite Element ◽  
Nonlinear Analysis ◽  
Full Scale ◽  
Finite Element Software ◽  
Rc Frames ◽  
Fracture Development ◽  
Load Carrying ◽  
Concrete Damage ◽  
Strain Relationship ◽  
Core Areas

In order to research on seismic performance of full-scale beam-column joints of RC frames under low cyclic loading, finite element software ABAQUS is used to nonlinear analysis. Analysis results show that: the process of load carrying and fracture development of beam-column joints are simulated using concrete damage plasticity model; nonlinear finite element method is easy to obtain stress-strain relationship; and can effective analyses the complex mechanical behavior of core areas of joints.

scholarly journals A Large-Deformation Gradient Damage Model for Single Crystals Based on Microdamage Theory

2020 ◽  
Vol 10 (24) ◽  
pp. 9142
Author(s):  
Ozgur Aslan ◽  
Emin Bayraktar
Keyword(s):  
Finite Element ◽  
Numerical Model ◽  
Flow Resistance ◽  
Large Deformations ◽  
Deformation Gradient ◽  
Damage Model ◽  
Anisotropic Damage ◽  
Finite Element Software ◽  
Mesh Dependency ◽  
Micromorphic Theory

This work aims at the unification of the thermodynamically consistent representation of the micromorphic theory and the microdamage approach for the purpose of modeling crack growth and damage regularization in crystalline solids. In contrast to the thermodynamical representation of the microdamage theory, micromorphic contribution to flow resistance is defined in a dual fashion as energetic and dissipative in character, in order to bring certain clarity and consistency to the modeling aspects. The approach is further extended for large deformations and numerically implemented in a commercial finite element software. Specific numerical model problems are presented in order to demonstrate the ability of the approach to regularize anisotropic damage fields for large deformations and eliminate mesh dependency.

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