Modeling the effects of high strain rate loading on RC columns using arbitrary lagrangian eulerian (ALE) technique

Masoud Abedini, Azrul A Mutalib, Sudharshan Naidu Raman, Ebrahim Akhlaghi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In recent years, many studies have been conducted by governmental and nongovernmental organizations across the world in an attempt to better understand the effect of explosive loads on buildings in order to better design against specific threats. This study is intended to contribute to increase the knowledge about how explosions affect reinforced concrete (RC) columns. In this study, a nonlinear model is developed to study the blast response of RC columns subjected to explosive loads. Numerical modeling of RC column under explosive load is presented using advanced finite element code LS DYNA. The obtained numerical model is validated with the experimental test and the results are in substantial agreement with the experimental data. ALE method for blast analysis is presented in the current research. The effects of scaled distance on the damage profile of RC columns are investigated. The results demonstrate that the level of damage increased with describing the scaled distance. Also the results shown duration for the blast loading, and hence the impulse, varies with charge masses at the specified scaled distance. Higher magnitude charge masses produced longer blast loading durations than lower magnitude charge masses. This means that at the same scaled distance, a charge mass of higher magnitude produced a higher impulse than the lower magnitude charge mass. The findings of this research represent the scaled distance is an important parameter that should be taken into account when analyzing the behavior of RC columns under explosive effects. The data collected from this research are being used to improve the knowledge of how structures will respond to a blast event, and improve finite element models for predicting the blast performance of concrete structures.

Original languageEnglish
Article number200
JournalRevista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria
Volume34
Issue number1
DOIs
Publication statusPublished - 1 Jan 2018

Fingerprint

High Strain Rate
Blast
Reinforced Concrete
Reinforced concrete
Strain rate
Charge
Arbitrary
Modeling
Impulse
Damage
Eulerian-Lagrangian Methods
LS-DYNA
Concrete Structures
Concrete construction
Explosions
Numerical models
Numerical Modeling
Loads (forces)
Explosion
Finite Element Model

Keywords

  • ALE method
  • Explosive load
  • LS DYNA
  • Scaled distance

ASJC Scopus subject areas

  • Engineering(all)
  • Applied Mathematics

Cite this

@article{667791ac734045aab8e6f51506713695,
title = "Modeling the effects of high strain rate loading on RC columns using arbitrary lagrangian eulerian (ALE) technique",
abstract = "In recent years, many studies have been conducted by governmental and nongovernmental organizations across the world in an attempt to better understand the effect of explosive loads on buildings in order to better design against specific threats. This study is intended to contribute to increase the knowledge about how explosions affect reinforced concrete (RC) columns. In this study, a nonlinear model is developed to study the blast response of RC columns subjected to explosive loads. Numerical modeling of RC column under explosive load is presented using advanced finite element code LS DYNA. The obtained numerical model is validated with the experimental test and the results are in substantial agreement with the experimental data. ALE method for blast analysis is presented in the current research. The effects of scaled distance on the damage profile of RC columns are investigated. The results demonstrate that the level of damage increased with describing the scaled distance. Also the results shown duration for the blast loading, and hence the impulse, varies with charge masses at the specified scaled distance. Higher magnitude charge masses produced longer blast loading durations than lower magnitude charge masses. This means that at the same scaled distance, a charge mass of higher magnitude produced a higher impulse than the lower magnitude charge mass. The findings of this research represent the scaled distance is an important parameter that should be taken into account when analyzing the behavior of RC columns under explosive effects. The data collected from this research are being used to improve the knowledge of how structures will respond to a blast event, and improve finite element models for predicting the blast performance of concrete structures.",
keywords = "ALE method, Explosive load, LS DYNA, Scaled distance",
author = "Masoud Abedini and {A Mutalib}, Azrul and Raman, {Sudharshan Naidu} and Ebrahim Akhlaghi",
year = "2018",
month = "1",
day = "1",
doi = "10.23967/j.rimni.2017.12.001",
language = "English",
volume = "34",
journal = "Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria",
issn = "0213-1315",
publisher = "Universitat Politecnica de Catalunya",
number = "1",

}

TY - JOUR

T1 - Modeling the effects of high strain rate loading on RC columns using arbitrary lagrangian eulerian (ALE) technique

AU - Abedini, Masoud

AU - A Mutalib, Azrul

AU - Raman, Sudharshan Naidu

AU - Akhlaghi, Ebrahim

PY - 2018/1/1

Y1 - 2018/1/1

N2 - In recent years, many studies have been conducted by governmental and nongovernmental organizations across the world in an attempt to better understand the effect of explosive loads on buildings in order to better design against specific threats. This study is intended to contribute to increase the knowledge about how explosions affect reinforced concrete (RC) columns. In this study, a nonlinear model is developed to study the blast response of RC columns subjected to explosive loads. Numerical modeling of RC column under explosive load is presented using advanced finite element code LS DYNA. The obtained numerical model is validated with the experimental test and the results are in substantial agreement with the experimental data. ALE method for blast analysis is presented in the current research. The effects of scaled distance on the damage profile of RC columns are investigated. The results demonstrate that the level of damage increased with describing the scaled distance. Also the results shown duration for the blast loading, and hence the impulse, varies with charge masses at the specified scaled distance. Higher magnitude charge masses produced longer blast loading durations than lower magnitude charge masses. This means that at the same scaled distance, a charge mass of higher magnitude produced a higher impulse than the lower magnitude charge mass. The findings of this research represent the scaled distance is an important parameter that should be taken into account when analyzing the behavior of RC columns under explosive effects. The data collected from this research are being used to improve the knowledge of how structures will respond to a blast event, and improve finite element models for predicting the blast performance of concrete structures.

AB - In recent years, many studies have been conducted by governmental and nongovernmental organizations across the world in an attempt to better understand the effect of explosive loads on buildings in order to better design against specific threats. This study is intended to contribute to increase the knowledge about how explosions affect reinforced concrete (RC) columns. In this study, a nonlinear model is developed to study the blast response of RC columns subjected to explosive loads. Numerical modeling of RC column under explosive load is presented using advanced finite element code LS DYNA. The obtained numerical model is validated with the experimental test and the results are in substantial agreement with the experimental data. ALE method for blast analysis is presented in the current research. The effects of scaled distance on the damage profile of RC columns are investigated. The results demonstrate that the level of damage increased with describing the scaled distance. Also the results shown duration for the blast loading, and hence the impulse, varies with charge masses at the specified scaled distance. Higher magnitude charge masses produced longer blast loading durations than lower magnitude charge masses. This means that at the same scaled distance, a charge mass of higher magnitude produced a higher impulse than the lower magnitude charge mass. The findings of this research represent the scaled distance is an important parameter that should be taken into account when analyzing the behavior of RC columns under explosive effects. The data collected from this research are being used to improve the knowledge of how structures will respond to a blast event, and improve finite element models for predicting the blast performance of concrete structures.

KW - ALE method

KW - Explosive load

KW - LS DYNA

KW - Scaled distance

UR - http://www.scopus.com/inward/record.url?scp=85060456462&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85060456462&partnerID=8YFLogxK

U2 - 10.23967/j.rimni.2017.12.001

DO - 10.23967/j.rimni.2017.12.001

M3 - Article

AN - SCOPUS:85060456462

VL - 34

JO - Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria

JF - Revista Internacional de Metodos Numericos para Calculo y Diseno en Ingenieria

SN - 0213-1315

IS - 1

M1 - 200

ER -