Numerical analysis of mechanical damage on concrete under high temperatures

Abstract Concrete is a widespread material all over the world. Due to this material’s heterogeneity and structural complexity, predicting the behavior of concrete structures under extreme environmental conditions is a very challenging task. High temperatures lead to microstructural changes which affect the macrostructural performance. In this context, computational tools that allow the simulation of structures may assist the analysis, by reproducing varied situations of thermal and mechanical loading and boundary conditions. In order to contribute to this scenario, this study proposes a numerical methodology to simulate the thermomechanical behavior of concrete under temperature gradients, through inverse analyses and a user subroutine implemented in Abaqus software. Thermal loading effects were considered as loading data for a damage model. Experimental data available in the literature was adopted for adjustment and validation purposes. The preliminary results presented herein encourage further improvements so as to allow realistic simulations of such an important aspect of concrete’s behavior.

Bibliographic Details

Main Authors:	de Assis,Lahis Souza, Dal Sasso,Matheus Fernandes, Farage,Michèle Cristina Resende, Bastos,Flávia de Souza, Beaucour,Anne-Lise
Format:	Digital revista
Language:	English
Published:	IBRACON - Instituto Brasileiro do Concreto 2022
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952022000100209
Tags:	Add Tag No Tags, Be the first to tag this record!