Stochastic Modal Damping Analysis of Stiffened Laminated Composite Plate

Sourav Chandra, Kheirollah Sepahvand, Vasant Matsagar, Steffen Marburg

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

5 Zitate (Scopus)

Abstract

Laminate composite plates have several significant applications in aerospace and automobile industries due to their high strength-to-weight ratio, thermal stability, etc. However, thin laminated composite plate has a tendency of buckling when subjected to some adverse loading conditions. The addition of stiffener can avoid the buckling tendency of the thin laminated composite plate. The effect of stiffener on natural frequency and random modal damping are studied herein. The effect of uncertainty in modal damping is accounted while analyzing the composite plate to evaluate the uncertainty in damped dynamic response of the stiffened composite plate. The modal damping of the composite is determined using visco-elastic damping (VED) model. The randomness in the modal damping is propagated from uncertainty in loss factor of the lamina, and stochastic finite element method (SFEM) based on generalized polynomial chaos (gPC) is applied to evaluate the uncertainty in the modal damping of the stiffened laminated composite plate. First-order shear deformation theory (FSDT), including rotary inertia, is adapted to develop collocation-based stochastic finite element formulation of the composite plate with stiffener. Addition of the stiffener increases the frequency of the composite structure. Uncertainty in the modal damping due to the varying layers of the plates and stiffener directions have been investigated.

OriginalspracheEnglisch
TitelRecent Advances in Computational Mechanics and Simulations - Volume-I
UntertitelMaterials to Structures
Redakteure/-innenSandip Kumar Saha, Mousumi Mukherjee
Herausgeber (Verlag)Springer Science and Business Media Deutschland GmbH
Seiten635-650
Seitenumfang16
ISBN (Print)9789811581373
DOIs
PublikationsstatusVeröffentlicht - 2021
Veranstaltung7th International Congress on Computational Mechanics and Simulation, 2019 - Mandi, Indien
Dauer: 11 Dez. 201913 Dez. 2019

Publikationsreihe

NameLecture Notes in Civil Engineering
Band103
ISSN (Print)2366-2557
ISSN (elektronisch)2366-2565

Konferenz

Konferenz7th International Congress on Computational Mechanics and Simulation, 2019
Land/GebietIndien
OrtMandi
Zeitraum11/12/1913/12/19

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