Nonlinear finite element program design for control of cracking of super-long concrete frame structure

2011 ◽  
Author(s):  
Yuming Zhang ◽  
Guangsheng Bian
Keyword(s):  
Finite Element ◽  
Program Design ◽  
Nonlinear Finite Element ◽  
Frame Structure ◽  
Finite Element Program ◽  
Concrete Frame ◽  
Design For Control ◽  
Element Program

scholarly journals Finite Element Analysis of Structural Engineering Problems Using a Viscoplastic Model Incorporating Two Back Stresses

1995 ◽  
Vol 117 (2) ◽  
pp. 377-383 ◽  
Author(s):  
V. K. Arya ◽  
G. R. Halford
Keyword(s):  
Finite Element ◽  
Structural Engineering ◽  
Nonlinear Finite Element ◽  
Finite Element Analyses ◽  
Element Analysis ◽  
Finite Element Program ◽  
Viscoplastic Model ◽  
Engineering Problems ◽  
Element Program ◽  
Viscoplastic Models

The feasibility of a viscoplastic model incorporating two back stresses and a drag strength is investigated for performing nonlinear finite element analyses of structural engineering problems. The model has recently been put forth by Freed and Walker. The feasibility of the viscoplastic model is demonstrated for nonlinear structural analyses by implementing the model into a finite element program and performing nonlinear finite element analyses for several uniaxial and multiaxial problems. Good agreement is shown to exist between the results obtained using the finite element implementation and those obtained experimentally. The advantages of using advanced viscoplastic models for performing nonlinear finite element analyses of structural components are indicated.

Moving Grid Method for Simulating Crack Propagation

2013 ◽  
Vol 405-408 ◽  
pp. 3173-3177
Author(s):  
Shu Feng Xu ◽  
Huai Fa Ma ◽  
Yong Fa Zhou
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Crack Propagation ◽  
Grid Method ◽  
Nonlinear Finite Element ◽  
Moving Grid ◽  
Finite Element Program ◽  
Element Program ◽  
Element Algorithm ◽  
Element Method

A moving grid nonlinear finite element method was used in this study to simulate crack propagation. The relevant elements were split along the direction of principal stress within the element and thus automatic optimization processing of local mesh was realized. We discussed the moving grid nonlinear finite element algorithm was proposed, compiled the corresponding script files based on the dedicated finite element language of Finite Element Program Generator (FEPG), and generate finite element source code programs according to the script files. Analyses show that the proposed moving grid finite element method is effective and feasible in crack propagation simulation.

SAP7 — A Nonlinear Finite Element Program

1982 ◽  
pp. 357-372
Author(s):  
M. Lashkari ◽  
V. I. Weingarten ◽  
F. Ghassemi
Keyword(s):  
Finite Element ◽  
Nonlinear Finite Element ◽  
Finite Element Program ◽  
Element Program

Finite-Element Analysis of Prestressed Concrete Frame Joints with Spread-Ended Beams

2014 ◽  
Vol 638-640 ◽  
pp. 115-119
Author(s):  
Qing Wen Liu ◽  
Fu Qiang Wu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Shear Strength ◽  
Prestressed Concrete ◽  
Model Experiment ◽  
Core Region ◽  
Element Analysis ◽  
Finite Element Program ◽  
Concrete Frame ◽  
Element Program

On the basis of the joint model experiment, the non-linear performance of joints is analysed by using finite element program. The concrete stress distribution, stirrups stress and dangerous area of joints with spread-ended beams are discussed. Finite element analysis shows that effective prestressing tendons through the joint core region play a beneficial role in concrete and can improve the compressive strengths of concrete, and help to improve the shear strength of joints. Finally, according to experiments and theoretical analysis, the beginning of the haunched region is the dangerous area of joint. In order to avoid concrete tension failure when exerting prestress, the beginning of the haunched region must have enough transverse U-shaped bars to resist the prestressing tension.

scholarly journals Finite Element Analysis of RC Deep Beams under Eccentric Load

2019 ◽  
Vol 26 (1) ◽  
pp. 41-50
Author(s):  
Bashar A. Mahmood ◽  
Khalaf I. Mohammad
Keyword(s):  
Finite Element ◽  
Failure Load ◽  
Nonlinear Finite Element ◽  
Deep Beams ◽  
Eccentric Load ◽  
Element Analysis ◽  
Finite Element Program ◽  
Numerical Result ◽  
Rc Deep Beams ◽  
Element Program

This study investigates the effect of load eccentricity on the deep beams in terms of failure load and failure mode by using ANSYS nonlinear finite element program. Three RC deep beams with shear span to depth ratios, varying from 0.91 to 1.67 are modeled. The comparison between experimental and numerical result under central load shows approximately fully match between them to ensure that the model was represented correctly. The model has been used to investigate the behavior of RC deep beams under eccentric loads with various heights of beams. Under eccentric load there was significant reduction in failure load. With increasing height of the beams the failure load increased gradually with incremental increases in height, also there is a clear reduction in failure load due to eccentricity. But when the eccentricity of the load on the beams reaches 50 mm all beams of different heights possess the same failure load and all of them are failed due to concrete crushing at the beam compression face.

A Numeric Analyses Method and Application of Loess Collapse Deformation

2011 ◽  
Vol 105-107 ◽  
pp. 1572-1575
Author(s):  
Rong Jian Li ◽  
Liu Ming Fan ◽  
Wen Zheng ◽  
Gao Feng Che
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Nonlinear Finite Element ◽  
Computational Results ◽  
Nonlinear Finite Element Method ◽  
Finite Element Program ◽  
Plate Test ◽  
Collapsible Loess ◽  
Element Program ◽  
Modulus Method

The collapse settlement of loess foundation is one of issues in engineering which need to be solved. Firstly, a finite element program was developed and the computational function of collapse deformation was implemented based on chord modulus method. Then, the comparison of the measured collapse settlement in a loading plate test and the computational collapse settlement based on the finite element were analyzed. The computational results show that the nonlinear finite element method based on the chord modulus should be recommended to evaluate the collapse deformation, owing to its potential application that it may consider the collapse deformation field of the whole collapsible loess foundation.

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