Validation of three-dimensional irregular lattice model for concrete failure mode simulations under impact loads

Young Kwang Hwang; Yun Mook Lim

doi:10.1016/j.engfracmech.2016.11.007

Validation of three-dimensional irregular lattice model for concrete failure mode simulations under impact loads

Young Kwang Hwang, Yun Mook Lim

Department of Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

A three-dimensional irregular lattice model was proposed and validated for concrete failure simulations under high loading rates. The validity of the fracture criterion and time integration method of the model was established. Subsequently the change in failure mode with different loading rates was examined via simulations of a modified-split Hopkinson pressure bar. In this paper, the model is validated, focusing on the rate-dependent response of the rheological unit and the failure mode change in concrete under impact loads. The results prove the capability of the model for simulating impact behavior of concrete in terms of the stress-strain relation with different loading rates, failure mode, and load-deflection curve.

Original language	English
Pages (from-to)	109-127
Number of pages	19
Journal	Engineering Fracture Mechanics
Volume	169
DOIs	https://doi.org/10.1016/j.engfracmech.2016.11.007
Publication status	Published - 2017 Jan 1

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2014R1A2A2A01004421 ).

Publisher Copyright:
© 2016 Elsevier Ltd

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1016/j.engfracmech.2016.11.007

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title = "Validation of three-dimensional irregular lattice model for concrete failure mode simulations under impact loads",

abstract = "A three-dimensional irregular lattice model was proposed and validated for concrete failure simulations under high loading rates. The validity of the fracture criterion and time integration method of the model was established. Subsequently the change in failure mode with different loading rates was examined via simulations of a modified-split Hopkinson pressure bar. In this paper, the model is validated, focusing on the rate-dependent response of the rheological unit and the failure mode change in concrete under impact loads. The results prove the capability of the model for simulating impact behavior of concrete in terms of the stress-strain relation with different loading rates, failure mode, and load-deflection curve.",

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AU - Lim, Yun Mook

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (No. 2014R1A2A2A01004421 ). Publisher Copyright: © 2016 Elsevier Ltd

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Y1 - 2017/1/1

N2 - A three-dimensional irregular lattice model was proposed and validated for concrete failure simulations under high loading rates. The validity of the fracture criterion and time integration method of the model was established. Subsequently the change in failure mode with different loading rates was examined via simulations of a modified-split Hopkinson pressure bar. In this paper, the model is validated, focusing on the rate-dependent response of the rheological unit and the failure mode change in concrete under impact loads. The results prove the capability of the model for simulating impact behavior of concrete in terms of the stress-strain relation with different loading rates, failure mode, and load-deflection curve.

AB - A three-dimensional irregular lattice model was proposed and validated for concrete failure simulations under high loading rates. The validity of the fracture criterion and time integration method of the model was established. Subsequently the change in failure mode with different loading rates was examined via simulations of a modified-split Hopkinson pressure bar. In this paper, the model is validated, focusing on the rate-dependent response of the rheological unit and the failure mode change in concrete under impact loads. The results prove the capability of the model for simulating impact behavior of concrete in terms of the stress-strain relation with different loading rates, failure mode, and load-deflection curve.

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Validation of three-dimensional irregular lattice model for concrete failure mode simulations under impact loads

Abstract

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