Computational model for predicting nonlinear viscoelastic damage evolution in materials subjected to dynamic loading

Flavio V. Souza; Yong Rak Kim; George A. Gazonas; David H. Allen

doi:10.1016/j.compositesb.2008.12.004

Computational model for predicting nonlinear viscoelastic damage evolution in materials subjected to dynamic loading

Flavio V. Souza, Yong Rak Kim, George A. Gazonas, David H. Allen

Civil Engineering

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

4 Scopus citations

Abstract

Many inelastic solids accumulate numerous cracks before failure due to impact loading, thus rendering any exact solution of the IBVP untenable. It is therefore useful to construct computational models that can accurately predict the evolution of damage during actual impact/dynamic events in order to develop design tools for assessing performance characteristics. This paper presents a computational model for predicting the evolution of cracking in structures subjected to dynamic loading. Fracture is modeled via a nonlinear viscoelastic cohesive zone model. Two example problems are shown: one for model validation through comparison with a one-dimensional analytical solution for dynamic viscoelastic debonding, and the other demonstrates the applicability of the approach to model dynamic fracture propagation in the double cantilever beam test with a viscoelastic cohesive zone.

Original language	English (US)
Pages (from-to)	483-494
Number of pages	12
Journal	Composites Part B: Engineering
Volume	40
Issue number	6
DOIs	https://doi.org/10.1016/j.compositesb.2008.12.004
State	Published - Sep 2009

Keywords

B. Debonding
B. Fracture
C. Cohesive zone model
C. Computational modelling

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.compositesb.2008.12.004

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title = "Computational model for predicting nonlinear viscoelastic damage evolution in materials subjected to dynamic loading",

abstract = "Many inelastic solids accumulate numerous cracks before failure due to impact loading, thus rendering any exact solution of the IBVP untenable. It is therefore useful to construct computational models that can accurately predict the evolution of damage during actual impact/dynamic events in order to develop design tools for assessing performance characteristics. This paper presents a computational model for predicting the evolution of cracking in structures subjected to dynamic loading. Fracture is modeled via a nonlinear viscoelastic cohesive zone model. Two example problems are shown: one for model validation through comparison with a one-dimensional analytical solution for dynamic viscoelastic debonding, and the other demonstrates the applicability of the approach to model dynamic fracture propagation in the double cantilever beam test with a viscoelastic cohesive zone.",

keywords = "B. Debonding, B. Fracture, C. Cohesive zone model, C. Computational modelling",

author = "Souza, {Flavio V.} and Kim, {Yong Rak} and Gazonas, {George A.} and Allen, {David H.}",

note = "Funding Information: The authors acknowledge the support provided by the U.S. Army Research Office under Cooperative Agreement No. W911NF-04-2-0011. The first author also acknowledges the financial support from CNPq, Conselho Nacional de Desenvolvimento Cientifico e Tecnologico – Brazil.",

year = "2009",

month = sep,

doi = "10.1016/j.compositesb.2008.12.004",

language = "English (US)",

volume = "40",

pages = "483--494",

journal = "Composites Part B: Engineering",

issn = "1359-8368",

publisher = "Elsevier Limited",

number = "6",

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T1 - Computational model for predicting nonlinear viscoelastic damage evolution in materials subjected to dynamic loading

AU - Souza, Flavio V.

AU - Kim, Yong Rak

AU - Gazonas, George A.

AU - Allen, David H.

N1 - Funding Information: The authors acknowledge the support provided by the U.S. Army Research Office under Cooperative Agreement No. W911NF-04-2-0011. The first author also acknowledges the financial support from CNPq, Conselho Nacional de Desenvolvimento Cientifico e Tecnologico – Brazil.

PY - 2009/9

Y1 - 2009/9

N2 - Many inelastic solids accumulate numerous cracks before failure due to impact loading, thus rendering any exact solution of the IBVP untenable. It is therefore useful to construct computational models that can accurately predict the evolution of damage during actual impact/dynamic events in order to develop design tools for assessing performance characteristics. This paper presents a computational model for predicting the evolution of cracking in structures subjected to dynamic loading. Fracture is modeled via a nonlinear viscoelastic cohesive zone model. Two example problems are shown: one for model validation through comparison with a one-dimensional analytical solution for dynamic viscoelastic debonding, and the other demonstrates the applicability of the approach to model dynamic fracture propagation in the double cantilever beam test with a viscoelastic cohesive zone.

AB - Many inelastic solids accumulate numerous cracks before failure due to impact loading, thus rendering any exact solution of the IBVP untenable. It is therefore useful to construct computational models that can accurately predict the evolution of damage during actual impact/dynamic events in order to develop design tools for assessing performance characteristics. This paper presents a computational model for predicting the evolution of cracking in structures subjected to dynamic loading. Fracture is modeled via a nonlinear viscoelastic cohesive zone model. Two example problems are shown: one for model validation through comparison with a one-dimensional analytical solution for dynamic viscoelastic debonding, and the other demonstrates the applicability of the approach to model dynamic fracture propagation in the double cantilever beam test with a viscoelastic cohesive zone.

KW - B. Debonding

KW - B. Fracture

KW - C. Cohesive zone model

KW - C. Computational modelling

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U2 - 10.1016/j.compositesb.2008.12.004

DO - 10.1016/j.compositesb.2008.12.004

M3 - Article

AN - SCOPUS:67651083432

SN - 1359-8368

VL - 40

SP - 483

EP - 494

JO - Composites Part B: Engineering

JF - Composites Part B: Engineering

IS - 6

ER -

Computational model for predicting nonlinear viscoelastic damage evolution in materials subjected to dynamic loading

Abstract

Keywords

ASJC Scopus subject areas

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