TY - JOUR
T1 - Damage history in composite laminates
T2 - Matrix cracks leading to delaminations
AU - Romarís Villanueva, Javier
AU - Kassapoglou, Christos
PY - 2024
Y1 - 2024
N2 - Strain energy release rate calculations for various cases of delaminations emanating from matrix cracks are developed and used to predict the onset of delaminations and their growth size as a function of applied tension and shear loads in composite laminates. The method determines the matrix crack spacing, the delamination onset load, the delamination size at onset and, through the use of a newly proposed delamination resistance curve, the size of delaminations as they grow under load. The method can be applied to any symmetric laminate. Comparisons to test results in the literature for a variety of layups and materials shows very good agreement with the exception of cases where significant edge delaminations appear before delaminations caused by matrix cracks.
AB - Strain energy release rate calculations for various cases of delaminations emanating from matrix cracks are developed and used to predict the onset of delaminations and their growth size as a function of applied tension and shear loads in composite laminates. The method determines the matrix crack spacing, the delamination onset load, the delamination size at onset and, through the use of a newly proposed delamination resistance curve, the size of delaminations as they grow under load. The method can be applied to any symmetric laminate. Comparisons to test results in the literature for a variety of layups and materials shows very good agreement with the exception of cases where significant edge delaminations appear before delaminations caused by matrix cracks.
KW - delamination onset
KW - delaminations
KW - Matrix cracks
KW - resistance curve
UR - http://www.scopus.com/inward/record.url?scp=85185470369&partnerID=8YFLogxK
U2 - 10.1177/00219983241232983
DO - 10.1177/00219983241232983
M3 - Article
AN - SCOPUS:85185470369
SN - 0021-9983
VL - 58
SP - 1063
EP - 1076
JO - Journal of Composite Materials
JF - Journal of Composite Materials
IS - 8
ER -