Modelling the tensile softening behaviour of concrete in LS-Dyna software

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F20%3APU138791" target="_blank" >RIV/00216305:26110/20:PU138791 - isvavai.cz</a>

Result on the web

<a href="https://iopscience.iop.org/article/10.1088/1757-899X/960/4/042084" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/960/4/042084</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/960/4/042084" target="_blank" >10.1088/1757-899X/960/4/042084</a>

Result language

angličtina

Original language name

Modelling the tensile softening behaviour of concrete in LS-Dyna software

Original language description

The problematic of the paper focuses on the numerical modelling of tensile softening behaviour of concrete. For this purpose, the explicit finite element software LS-Dyna contains several nonlinear material models. The tensile softening behaviour of a total of four selected explicit nonlinear concrete models (namely the Concrete Damage models Release 1 and Release 3, the Winfrith Concrete model and the Continuous Surface Cap model) is tested within numerical simulations of this paper. The task used within the numerical simulations is represented by so-called UUT (Unconfined Uniaxial Tension) test. For this test, specific concrete specimens are used. The numerical simulations are performed with using explicit finite elements. Results of numerical simulations are shown by l-d (load-displacement) diagrams of the UUT test for individual nonlinear concrete models. These results are compared with results obtained from the laboratory measurements for the purpose of validation of the numerical models. The comparisons enable to obtain information about differences between individual nonlinear concrete material models in terms of the tensile softening behaviour. They also show the accuracy of approximations of experimental results by numerical simulations. Based on the comparisons, it can be concluded which nonlinear material models are best for the description of behaviour of concrete in uniaxial tension. Based on the obtained results, it can further be discussed the suitability of nonlinear concrete models in terms of other tests for measuring the tensile mechanical properties of concrete.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/GA17-23578S" target="_blank" >GA17-23578S: Damage assessment identification for reinforced concrete subjected to extreme loading</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

IOP Conference Series: Materials Science and Engineering (WMCAUS 2020)

ISBN

—

ISSN

1757-899X

e-ISSN

—

Number of pages

7

Pages from-to

1-7

Publisher name

IOP Publishing

Place of publication

Prague, Czech Republic

Event location

Prague

Event date

Sep 1, 2020

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000646533100302