A hierarchical multi-scale analytical approach for predicting the elastic behavior of short fiber reinforced polymers under triaxial and flexural loading conditions

H Ahmadi, M Hajikazemi, E Rashidinejad… - … Science and Technology, 2022 - Elsevier
This paper presents a computationally efficient multi-scale analytical framework for
predicting the effective elastic response of short fiber reinforced polymers (SFRPs) under …

[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 …

A computational study about the effects of ply cracking and delamination on the stiffness reduction of damaged lamina and laminate

H Ahmadi, M Hajikazemi… - International Journal of …, 2022 - journals.sagepub.com
Accurate prediction of stiffness degradation in the damaged plies (laminae) is a fundamental
requirement for developing damage models for composite materials. In this study, a …

Stretchable Transparent Electrode via Wettability Self-Assembly in Mechanically Induced Self-Cracking

J Xu, Z Qiu, M Yang, J Chen, Q Luo, Z Wu… - … Applied Materials & …, 2021 - ACS Publications
Stretchable and transparent electrodes (STEs) are indispensable components in numerous
emerging applications such as optoelectrical devices and wearable devices used in health …

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 …

Closed-form formulae for prediction of homogenized ply-properties and laminate thermo-elastic constants in symmetric laminates containing ply cracks in multiple …

H Ahmadi, M Hajikazemi, W Van Paepegem - Composite Structures, 2020 - Elsevier
The aim of this study is to develop a novel model for predicting homogenized properties of a
cracked ply in a symmetric laminate using the crack density and thickness of the ply. In doing …

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 …

Damage-Caused Residual Curvatures in Symmetric Cross-Ply Laminates

A Pupurs, J Varna - Applied Composite Materials, 2024 - Springer
Thermo-mechanical response of [90 n/0 m] s carbon/epoxy and glass/epoxy cross-ply
laminates in 4-point bending is analyzed experimentally and analytically. Intralaminar cracks …

Multiscale framework. Concept of geometry, materials, load conditions, and homogenization

DG Gómez - Multi-scale continuum mechanics modelling of fibre …, 2021 - Elsevier
The chapter describes the multiscale framework used in this book to study the fibre-
reinforced composites based on a polymer matrix. The main objective is that the user …

Mesoscale finite element analysis of cracked composite laminates under out-of-plane loads using 3D periodic boundary conditions

D Garoz, M Hajikazemi, TD Dinh… - Composite Structures, 2020 - Elsevier
The behavior of composite materials under out-of-plane loads is strongly affected by the
presence of transverse ply cracks. The cracks perturb the distribution of stresses leading to …