Enhanced Nonlinear Analysis of Three-Dimensional Concrete Structures using Damage Plasticity Modelling

2015 ◽  
Author(s):  
A. Barrero Bilbao ◽  
B.A. Izzuddin ◽  
R.L. Vollum
Keyword(s):  
Nonlinear Analysis ◽  
Three Dimensional ◽  
Concrete Structures

scholarly journals A GPU-Based Parallel Procedure for Nonlinear Analysis of Complex Structures Using a Coupled FEM/DEM Approach

2013 ◽  
Vol 2013 ◽  
pp. 1-15 ◽  
Author(s):  
Lixiang Wang ◽  
Shihai Li ◽  
Guoxin Zhang ◽  
Zhaosong Ma ◽  
Lei Zhang
Keyword(s):  
Comparative Study ◽  
Computer Science ◽  
Nonlinear Analysis ◽  
Three Dimensional ◽  
Concrete Structures ◽  
Thermomechanical Analysis ◽  
Complex Structures ◽  
Large Structure ◽  
Performance Improvements ◽  
Parallelization Strategy

This study reports the GPU parallelization of complex three-dimensional software for nonlinear analysis of concrete structures. It focuses on coupled thermomechanical analysis of complex structures. A coupled FEM/DEM approach (CDEM) is given from a fundamental theoretical viewpoint. As the modeling of a large structure by means of FEM/DEM may lead to prohibitive computation times, a parallelization strategy is required. With the substantial development of computer science, a GPU-based parallel procedure is implemented. A comparative study between the GPU and CPU computation results is presented, and the runtimes and speedups are analyzed. The results show that dramatic performance improvements are gained from GPU parallelization.

scholarly journals On three-dimensional nonlinear analysis of concrete structures

1979 ◽  
Vol 52 (3) ◽  
pp. 385-409 ◽  
Author(s):  
Klaus-Jürgen Bathe ◽  
Seshadri Ramaswamy
Keyword(s):  
Nonlinear Analysis ◽  
Three Dimensional ◽  
Concrete Structures

scholarly journals Material and geometric nonlinear analysis of reinforced concrete frames

2014 ◽  
Vol 7 (5) ◽  
pp. 879-904 ◽  
Author(s):  
E. Parente Jr ◽  
G. V. Nogueira ◽  
M. Meireles Neto ◽  
L. S. Moreira
Keyword(s):  
Reinforced Concrete ◽  
Nonlinear Analysis ◽  
Constitutive Relations ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Computationally Efficient ◽  
Concrete Frames ◽  
Frame Element ◽  
Computational Implementation ◽  
Plane Frame

The analysis of reinforced concrete structures until failure requires the consideration of geometric and material nonlinearities. However, nonlinear analysis is much more complex and costly than linear analysis. In order to obtain a computationally efficient approach to nonlinear analysis of reinforced concrete structures, this work presents the formulation of a nonlinear plane frame element. Geometric nonlinearity is considered using the co-rotational approach and material nonlinearity is included using appropriate constitutive relations for concrete and steel. The integration of stress resultants and tangent constitutive matrix is carried out by the automatic subdivision of the cross-section and the application of the Gauss quadrature in each subdivision. The formulation and computational implementation are validated using experimental results available in the literature. Excellent results were obtained.

Dynamic Nonlinear Analysis of an Hybrid Base Isolation System with Viscous Dampers and Friction Sliders in Parallel

2012 ◽  
Vol 234 ◽  
pp. 96-101 ◽  
Author(s):  
Donato Cancellara ◽  
Fabio de Angelis
Keyword(s):  
Nonlinear Analysis ◽  
Base Isolation ◽  
Three Dimensional ◽  
Time History ◽  
Seismic Action ◽  
Viscous Dampers ◽  
Isolation System ◽  
Fixed Base ◽  
Base Isolation System ◽  
Dynamic Nonlinear Analysis

In the present work we have analyzed a particular base isolation system for the seismic protection of a multi-storey reinforced concrete (RC) building. The viscous dampers and friction sliders are the devices adopted in parallel for realizing the base isolation system. The base isolation structure has been designed and verified according to European seismic code EC8 and by considering for the friction sliders the influence of the sliding velocity on the value of the friction coefficient. A dynamic nonlinear analysis for a three-dimensional base isolated structure has been performed. Recorded accelerograms for bi-directional ground motions have been used which comply with the requirements imposed by EC8 for the representation of a seismic action in a time history analysis. In this paper a comparative analysis is presented between the base isolated structure with the described hybrid base isolation system and the traditional fixed base structure.

Sign in / Sign up

Export Citation Format

Share Document