TY - JOUR
T1 - Isogeometric analysis of continuum damage in rotation-free composite shells
AU - Deng, X.
AU - Korobenko, A.
AU - Yan, J.
AU - Bazilevs, Y.
N1 - Funding Information:
The corresponding author and the second author were supported through AFOSR Award FA9550-12-1-0005 . The first author was supported through AFOSR Award FA9550-12-1-0046 . This support is gratefully acknowledged. The authors would also like to express their gratitude to Prof. Hyonny Kim, Structural Engineering, UC, San Diego, for fruitful discussions about failure in composite laminates and for pointing us to the World-Wide Failure Exercise references.
PY - 2015/2/1
Y1 - 2015/2/1
N2 - A large-deformation, isogeometric rotation-free Kirchhoff-Love shell formulation is equipped with a damage model to efficiently and accurately simulate progressive failure in laminated composite structures. The damage model consists of Hashin's theory of damage initiation, a bilinear material model for damage evolution, and an appropriately chosen Gibbs free-energy density. Four intralaminar modes of failure are considered: Longitudinal and transverse tension, and longitudinal and transverse compression. The choice of shell formulation and modes of failure modeled make the proposed methodology valid in the regime of relatively thin shell structures where damage occurs without significant evidence of delamination. The damage model is extensively validated against experimental data and its use is also illustrated in the context of multiscale composite damage analysis.
AB - A large-deformation, isogeometric rotation-free Kirchhoff-Love shell formulation is equipped with a damage model to efficiently and accurately simulate progressive failure in laminated composite structures. The damage model consists of Hashin's theory of damage initiation, a bilinear material model for damage evolution, and an appropriately chosen Gibbs free-energy density. Four intralaminar modes of failure are considered: Longitudinal and transverse tension, and longitudinal and transverse compression. The choice of shell formulation and modes of failure modeled make the proposed methodology valid in the regime of relatively thin shell structures where damage occurs without significant evidence of delamination. The damage model is extensively validated against experimental data and its use is also illustrated in the context of multiscale composite damage analysis.
KW - Continuum damage modeling
KW - Isogeometric analysis
KW - Kirchhoff-Love shells
KW - Laminated composites
KW - Multiscale modeling
KW - NURBS
UR - http://www.scopus.com/inward/record.url?scp=84908432920&partnerID=8YFLogxK
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U2 - 10.1016/j.cma.2014.09.015
DO - 10.1016/j.cma.2014.09.015
M3 - Article
AN - SCOPUS:84908432920
VL - 284
SP - 349
EP - 372
JO - Computer Methods in Applied Mechanics and Engineering
JF - Computer Methods in Applied Mechanics and Engineering
SN - 0374-2830
ER -