TY - JOUR
T1 - Three-dimensional analytical model for effective elastic constants of transversely isotropic plates with multiple cracks
T2 - Application to stiffness reduction and steady-state cracking of composite laminates
AU - Onodera, Sota
AU - Okabe, Tomonaga
N1 - Funding Information:
This work was supported by Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP), ”Materials Integration” for revolutionary design system of structural materials (Funding agency: JST ). The authors would like to acknowledge the vitally important encouragement and support made through the University of Washington-Tohoku University: Academic Open Space (UW-TU: AOS). S. O. appreciates the support of JSPS KAKENHI Grant No. JP 18J20899 .
Funding Information:
This work was supported by Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP), ?Materials Integration? for revolutionary design system of structural materials (Funding agency: JST). The authors would like to acknowledge the vitally important encouragement and support made through the University of Washington-Tohoku University: Academic Open Space (UW-TU: AOS). S. O. appreciates the support of JSPS KAKENHI Grant No. JP 18J20899.
Publisher Copyright:
© 2019 Elsevier Ltd
PY - 2019/10/1
Y1 - 2019/10/1
N2 - An analytical three-dimensional effective elastic constant of transversely isotropic plates that include ply cracks is proposed using a continuum damage mechanics approach. Two damage parameters associated with tensile and shear damage are formulated as functions of ply crack density using local stress fields that satisfy the equilibrium equations. Three-dimensional laminate theory is then employed to formulate the effective compliance of the laminate using the effective compliance of a damaged ply, and an analytical steady-state cracking model is established. The proposed model reproduces the thermomechanical properties and the crack initiation stress of laminates.
AB - An analytical three-dimensional effective elastic constant of transversely isotropic plates that include ply cracks is proposed using a continuum damage mechanics approach. Two damage parameters associated with tensile and shear damage are formulated as functions of ply crack density using local stress fields that satisfy the equilibrium equations. Three-dimensional laminate theory is then employed to formulate the effective compliance of the laminate using the effective compliance of a damaged ply, and an analytical steady-state cracking model is established. The proposed model reproduces the thermomechanical properties and the crack initiation stress of laminates.
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U2 - 10.1016/j.engfracmech.2019.106595
DO - 10.1016/j.engfracmech.2019.106595
M3 - Article
AN - SCOPUS:85070574826
SN - 0013-7944
VL - 219
JO - Engineering Fracture Mechanics
JF - Engineering Fracture Mechanics
M1 - 106595
ER -