[HTML][HTML] A variational approach for accurate prediction of stress and displacement fields and thermo-elastic constants in general symmetric laminates containing ply …

M Hajikazemi, H Ahmadi, LN McCartney… - International Journal of …, 2022 - Elsevier
Delamination induced by ply cracking is an important damage mechanism that results in
stress redistribution and degrades both the in-plane and out-of-plane laminate properties. In …

Variational analysis of cracking in general composite laminates subject to triaxial and bending loads

M Hajikazemi, LN McCartney, H Ahmadi… - Composite …, 2020 - Elsevier
A robust variational approach is first developed for predicting stress/displacement fields and
effective thermo-elastic constants in a laminate with arbitrary lay-up, containing uniformly …

Digital image correlation (DIC) validation of engineering approaches for bending stiffness determination of damaged laminates

A Pupurs, M Loukil, J Varna - Applied Composite Materials, 2022 - Springer
During the last decade new models for bending stiffness prediction of damaged composite
laminates have been proposed in the literature advancing the earlier developed …

[HTML][HTML] Variational analysis of free-edge stress and displacement fields in general un-symmetric and thin-ply laminates under in-plane, bending and thermal loading

M Hajikazemi, W Van Paepegem - Composites Part A: Applied Science and …, 2018 - Elsevier
A variational approach based on the minimization of complementary energy is developed to
determine accurately a complete solution for both free-edge stress and displacement …

Model to accurately predict out-of-plane shear stiffness reduction in general cracked laminates

M Hajikazemi, D Garoz, W Van Paepegem - Composites Science and …, 2019 - Elsevier
The practically important problem of the modification of laminate out-of-plane shear stiffness
by ply cracks is hardly investigated in the literature. In this paper, out-of-plane shear stiffness …

Evaluation of cross-ply laminate stiffness with a non-uniform distribution of transverse matrix cracks by means of a computational meso-mechanic model

ND Barulich, LA Godoy, PM Dardati - Composite Structures, 2018 - Elsevier
This work addresses the evaluation of the stiffness of fiber-reinforced composite laminates,
by means of a computational meso-mechanic model, considering two non-uniformly spaced …

[HTML][HTML] Theory of variational stress transfer in general symmetric composite laminates containing non-uniformly spaced ply cracks

M Hajikazemi, LN McCartney, W Van Paepegem… - Composites Part A …, 2018 - Elsevier
Ply cracking is an inherently stochastic process due to the random variability of local
material properties of the plies. Such randomness in microstructure and in failure evolution …

Mesoscale analysis of ply-cracked composite laminates under in-plane and flexural thermo-mechanical loading

TD Dinh, D Garoz, M Hajikazemi… - Composites Science and …, 2019 - Elsevier
This article presents a finite element model to predict the thermo-mechanical behavior of ply-
cracked composite laminates from their discrete structure at the ply level, ie, the …

A variational method for analysis of laminates with parallel arrays of intralaminar cracks

V Vinogradov - International Journal for Numerical Methods in …, 2019 - Wiley Online Library
This paper presents a robust variational method for prediction of the effective thermoelastic
properties of laminates with parallel, but not necessarily coplanar intralaminar cracks …

Bending stiffness of damaged cross-ply laminates

A Pupurs, M Loukil, J Varna - Mechanics of composite materials, 2021 - Springer
The bending stiffness of carbon/epoxy and glass/epoxy cross-ply laminates with intralaminar
cracks in the surface 90° plies and local delaminations were studied experimentally using 4 …