TY - JOUR
T1 - A coupled DQ-Heaviside-NURBS approach to investigate nonlinear dynamic response of GRE cylindrical shells under impulse loads
AU - Heydarpour, Yasin
AU - Mohammadzaheri, Morteza
AU - Ghodsi, Mojtaba
AU - Soltani, Payam
AU - Al-Jahwari, Farooq
AU - Bahadur, Issam
AU - Al-Amri, Badar
N1 - Funding Information:
Research reported in this paper was sponsored by MedcoEnergi Oman with grant CR/ENG/MIED/19/05 through Sultan Qaboos University, Oman .
Publisher Copyright:
© 2021
PY - 2021/8/1
Y1 - 2021/8/1
N2 - As a first endeavour, nonlinear dynamic response of the glass fibre-reinforced epoxy (GRE) laminated composite cylindrical shells under an impulse load is investigated based on the first-order shear deformation theory (FSDT) of shells. Green's strain and von Kármán hypothesis are assumed to consider the geometrical nonlinearity due to large deformation in the model. A new solution procedure composed of the differential quadrature method (DQM) based on the direct projection of the Heaviside function and a non-uniform rational B-spline (NURBS) based multi-step time integration scheme is employed to discretize the governing equations in the spatial and temporal domains, respectively. The approach is validated by showing its fast convergence rate and performing comparison studies with available solutions in the limited available cases. A comprehensive parametric study is performed then on the model and the effects of the geometrical parameters, number of layers, load location, time durations, and types of impulse loading on the nonlinear dynamic responses of GRE laminated composite cylindrical shells are investigated.
AB - As a first endeavour, nonlinear dynamic response of the glass fibre-reinforced epoxy (GRE) laminated composite cylindrical shells under an impulse load is investigated based on the first-order shear deformation theory (FSDT) of shells. Green's strain and von Kármán hypothesis are assumed to consider the geometrical nonlinearity due to large deformation in the model. A new solution procedure composed of the differential quadrature method (DQM) based on the direct projection of the Heaviside function and a non-uniform rational B-spline (NURBS) based multi-step time integration scheme is employed to discretize the governing equations in the spatial and temporal domains, respectively. The approach is validated by showing its fast convergence rate and performing comparison studies with available solutions in the limited available cases. A comprehensive parametric study is performed then on the model and the effects of the geometrical parameters, number of layers, load location, time durations, and types of impulse loading on the nonlinear dynamic responses of GRE laminated composite cylindrical shells are investigated.
KW - cylindrical shells
KW - DQM
KW - Glass fibre-reinforced epoxy laminated composite
KW - Heaviside function
KW - Impulse load
KW - multi-step time integration scheme
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U2 - 10.1016/j.tws.2021.107958
DO - 10.1016/j.tws.2021.107958
M3 - Article
AN - SCOPUS:85107020103
SN - 0263-8231
VL - 165
JO - Thin-Walled Structures
JF - Thin-Walled Structures
M1 - 107958
ER -