Nonlinear behavior of FG porous cylindrical sandwich shells reinforced by spiral stiffeners under torsional load including thermal effect

This work deals with the nonlinear behavior of sandwich cylindrical shells reinforced by spiral stiffener subjected to torsional load in the thermal environment. The sandwich cylindrical shells composed of functionally graded porous core and two functionally graded (FG) face sheets is considered for...

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Bibliographic Details
Published inMechanics of advanced materials and structures Vol. 29; no. 27; pp. 5860 - 5875
Main Authors Tu, Tran Minh, Thai, Duc-Kien, Hoan, Pham Van, Hoa, Le Kha
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 14.12.2022
Taylor & Francis Ltd
Subjects
Cylindrical shells
Donnell shell theory
elastic medium
Functionally gradient materials
Nonlinearity
porous structures
Shell theory
spiral stiffener
Stiffeners
Temperature effects
thermal effect
Thermal environments
Torsional postbuckling
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Summary:This work deals with the nonlinear behavior of sandwich cylindrical shells reinforced by spiral stiffener subjected to torsional load in the thermal environment. The sandwich cylindrical shells composed of functionally graded porous core and two functionally graded (FG) face sheets is considered for the first time. Based on the Donnell shell theory with von Karman geometrical nonlinearity in conjunction with Lekhnitskii's smeared stiffeners technique for spiral stiffeners, the governing equations are obtained. The comparisons are made with available results to show the validation of the proposed analytic approach. The effects of various shell geometrical characteristics, angle stiffeners, number of spiral stiffeners, material parameters, and temperature change are investigated.
Bibliography:ObjectType-Article-1
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content type line 14
ISSN:1537-6494
1537-6532
DOI:10.1080/15376494.2021.1967530