Within the framework of continuum damage mechanics, a new strain-rate-dependent damage model is developed for lightweight high-strength concrete (LWHSC). The damage model is implemented as a material subroutine to established finite element software for numerical analysis. The numerical models are substantiated by a comprehensive experimental investigation programme involving both static and impact tests on different types of LWHSC. Existing experimental results for normal-weight concrete (NWC) under various loading conditions are also used to verify the proposed model. Comparison of numerical and experimental results indicates that the proposed damage model captures well the constitutive relation of LWHSC as well as NWC under both static and dynamic loading conditions.
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August 2006
Research Article|
August 01 2006
Damage modelling of lightweight high-strength concrete under impact
J. L. Le*;
J. L. Le*
Department of Civil Engineering, National University of Singapore
1 Engineering Drive 2, Singapore 117576
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C. G. Koh*†;
C. G. Koh*†
Department of Civil Engineering, National University of Singapore
1 Engineering Drive 2, Singapore 117576
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T. H. Wee*
T. H. Wee*
Department of Civil Engineering, National University of Singapore
1 Engineering Drive 2, Singapore 117576
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Publisher: Emerald Publishing
Received:
July 22 2005
Accepted:
February 24 2006
Online ISSN: 1751-763X
Print ISSN: 0024-9831
© 2006 Thomas Telford Ltd
2006
Magazine of Concrete Research (2006) 58 (6): 343–355.
Article history
Received:
July 22 2005
Accepted:
February 24 2006
Citation
Le* JL, Koh*† CG, Wee* TH (2006), "Damage modelling of lightweight high-strength concrete under impact". Magazine of Concrete Research, Vol. 58 No. 6 pp. 343–355, doi: https://doi.org/10.1680/macr.2006.58.6.343
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