Implementation of a damage model in a finite element program for computation of structures under dynamic loading
Journal Title: Frattura ed Integrità Strutturale - Year 2016, Vol 10, Issue 35
Abstract
This work is a numerical simulation of nonlinear problems of the damage process and fracture of quasi-brittle materials especially concrete. In this study, we model the macroscopic behavior of concrete material, taking into account the phenomenon of damage. J. Mazars model whose principle is based on damage mechanics has been implemented in a finite element program written Fortran 90, it takes into account the dissymmetry of concrete behavior in tension and in compression, this model takes into account the cracking tensile and rupture in compression. It is a model that is commonly used for static and pseudo-static systems, but in this work, it was used in the dynamic case.
Authors and Affiliations
Nasserdine Oudni, Youcef Bouafia
Keywords
Related Articles
- EP ID EP106762
- DOI 10.3221/IGF-ESIS.35.32
- Views 46
- Downloads 0
Welding sequence effects on residual stress distribution in offshore wind monopile structures
Residual stresses are often inevitably introduced into the material during the fabrication processes, such as welding, and are known to have significant effects on the subsequent fatigue crack growth behavior of&n...
Measurement and simulation of strain fields around crack tips under mixed-mode fatigue loading
For various configurations examined in a series of fatigue experiments on thin-walled tubes under tension and torsion, the experimental results – crack path, crack growth life, near crack tip deformations, and cr...
Kinetics of fatigue crack growth and crack paths in the old puddled steel after 100-years operating time
The goal of the authors’ investigations was determination of the fatigue crack growth in fragments of steel structures (of the puddled steel) and its cyclic behavior. Tested steel elements coming from the turn of&...
Multi-scale crack closure measurements with digital image correlation on Haynes 230
An experimental campaign was developed to study fatigue crack growth in Haynes 230, a Ni-based superalloy. The effects of crack closure were investigated with digital image correlation, by applying two different...
2D size, position and shape definition of defects by B-scan image analysis
The non-destructive evaluation of defects by automatic procedures is of great importance for structural components. Thanks to the developments of the non-contact ultrasonic techniques, the automation of the i...