Nonlinear forced vibrations analysis of imperfect stiffened FG doubly curved shallow shell in thermal environment using multiple scales method

H Ahmadi, A Bayat, ND Duc - Composite Structures, 2021 - Elsevier
This study investigates the non-linear vibrations of stiffened imperfect functionally graded
double-curved shallow shells, as rested on nonlinear elastic foundations. The shells are …

Theoretical modelling and experimental verification of modal responses of skewed laminated sandwich structure with epoxy-filled softcore

PV Katariya, SK Panda, K Mehar - Engineering Structures, 2021 - Elsevier
The experimental eigenvalue responses of the epoxy-filled skew sandwich structure are
computed first-time in this research to show the suitability of equivalent type single-layer …

Stacking sequence optimization of doubly-curved laminated composite shallow shells for maximum fundamental frequency by sequential permutation search …

Z Jing, Q Sun, Y Zhang, K Liang, X Li - Computers & Structures, 2021 - Elsevier
A sequential permutation search (SPS) optimization algorithm is proposed for the stacking
sequence design of doubly-curved laminated composite shallow shells. The SPS algorithm …

Nonlinear steady-state responses of weakly bonded composite shell structure under hygro-thermo-mechanical loading

CK Hirwani, PK Mishra, SK Panda - Composite Structures, 2021 - Elsevier
The nonlinear micromechanical finite element (FE) model is derived to compute the steady-
state time-dependent deflections of the weakly connected layered composite panel. The …

Postbuckling analysis of piezoelectric multiscale sandwich composite doubly curved porous shallow shells via Homotopy Perturbation Method

M Karimiasl, F Ebrahimi, V Mahesh - Engineering with Computers, 2021 - Springer
In this study postbuckling behaviors of multiscale composite sandwich doubly curved
piezoelectric shell with a flexible core and MR layers by employing Homotopy Perturbation …

Influence of debonding on nonlinear deflection responses of curved composite panel structure under hygro-thermo-mechanical loading–macro-mechanical FE …

CK Hirwani, SK Panda, PK Mishra - International Journal of Non-Linear …, 2021 - Elsevier
The excess geometrical deformation due to the in-plane hygrothermal and transverse
mechanical loading are computationally (through a customized MATLAB code) obtained for …

Development of a shell superelement for large deformation and free vibration analysis of composite spherical shells

M Shamloofard, A Hosseinzadeh… - Engineering with …, 2021 - Springer
Finite element analysis of huge and/or complicated structures often requires long times and
large computational expenses. Superelements are huge elements that exploit the …

Vibration characteristics of composite sandwich cylindrical panel with double-V auxetic core subjected to the aerohygrothermal environment

M Karimiasl, A Alibeigloo - Waves in Random and Complex Media, 2021 - Taylor & Francis
In this article, vibration analysis of composite sandwich panels with graphene plate–
reinforced composite (GPLRC)-facing sheets and double-V auxetic core under …

Motion limiting nonlinear dynamics of initially curved beams

H Farokhi, MH Ghayesh - Thin-Walled Structures, 2021 - Elsevier
An initially curved beam is considered and its motion is constrained using two elastic
constraints; the corresponding non-smooth nonlinear transverse dynamics is investigated for …

Forced vibration analyses of FGP shallow shells with variable curvature

J Lu, C Chiu, X Zhang, S Li, Z Meng, W Xu - The European Physical …, 2021 - Springer
The functionally graded porous material is an emerging material that is able to reduce
structural weight and keeps the superiority of mechanical property of the structure …