Boundary-layer hygrothermal stresses in laminated, composite, circular, cylindrical shell panels

Nosier, A.; Miri, Amir K.

doi:10.1007/s00419-009-0323-0

Cited by 19 publications

(4 citation statements)

References 34 publications

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“…Solution of the equations Each of the equations in (26), (27), and (28) include N + 1 ordinary differential equations and the governing equations of the cylinder include a set of 3N + 3 coupled differential equations on 3N + 3 unknown functions include U k , V k , and W k . To solve these equations, the set of new variable {X} is defined as a column matrix with 6(N + 1) components as…”

Section: Hygrothermal Loading Conditionsmentioning

confidence: 99%

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Edge stresses analysis in laminated thick sandwich cylinder subjected to distributed hygrothermal loading

Ahmadi

2016

Jnl of Sandwich Structures & Materials

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The boundary layer hygrothermal stresses in the thick sandwich cylinder with laminated face are investigated. Uniform and through the thickness steady-state distribution for temperature and moisture content can be considered in the analysis. A displacement based layer-wise formulation is presented for analysis of thick sandwich composite cylinders subjected to hygrothermal loading conditions. Considering a general displacement field and employing a displacement based layer-wise theory, the governing equations of thick laminated sandwich cylinder are obtained. The displacement based formulation is derived for thick sandwich cylinder, which is subjected to non-uniform hygrothermal loading conditions. The faces of the sandwich cylinder are made of laminated composite with general layer stacking. The governing equations of the system include a set of coupled differential equations on the displacement components of the numerical surfaces. A semi-analytical solution is developed and the governing equations are solved for free edge boundary conditions. The accuracy of the numerical results is validated by the results of the finite element simulation and good agreements are seen between the predicted results. The free edge interlaminar stresses distributions are presented for thin and thick sandwich composite cylinders for uniform and non-uniform loading conditions. It is concluded that the presented layer-wise formulation is efficient and accurate method for analysis of thermal and hygroscopic stresses in thick and thin sandwich cylinders with general layer stacking.

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Section: Hygrothermal Loading Conditionsmentioning

confidence: 99%

“…Nosier and Miri [28] used combination of equivalent single layer and layer-wise shell theories and studied the free-edge effects in laminated cylindrical panels subjected to hygrothermal loading condition. Yifeng and Yu [29] used the variational asymptotic method and introduced a hygrothermal model for analyzing composite laminates.…”

Section: Introductionmentioning

confidence: 99%

Edge stresses analysis in laminated thick sandwich cylinder subjected to distributed hygrothermal loading

Ahmadi

2016

Jnl of Sandwich Structures & Materials

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“…In another study, Brischetto and Carrera (2008) study the thermal stress analysis of composite shell by refined multilayered models. A study on the free-edge effects in laminated circular cylindrical shell panels subjected to hygrothermal loading is carried out by Nosier and Miri (2009) by utilizing displacement-based theories. A complete review on the analysis of laminated composite shells under thermal and hygrothermal loading from 2000 to 2010 has been recently reported by Qatu et al (2012).…”

Section: Jsmohamed Alimentioning

confidence: 99%

Hygrothermoelastic Analysis of Orthotropic Cylindrical Shells

Ali

Alsubari

Aminanda

2016

Lat. Am. j. solids struct.

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In this work, the combined effect of moisture and temperature on the bending behavior of simply supported orthotropic cylindrical shells has been investigated. Initially three dimensional equilibrium equations of thermoelasticity, simplified to the case of generalized plane strain deformations in the axial direction are solved analytically for an orthotropic cylindrical shell strip under thermal loading. Based on the realistic variation of displacements from the elasticity approach, a new higher order shear deformation theory was proposed for the analysis of an orthotropic cylindrical shell strip under hygrothermal and mechanical loading. The zigzag form of the displacement is incorporated via the Murakami zigzag function. Results are presented for mechanical and thermal loading for various layups and they are validated against the derived elasticity solution. The significance of retaining various higher-order terms in the present model, in evaluating the stresses and deflection for composite laminates is brought out clearly through parametric study. Useful results for combined hygrothermal loading are presented in tabular and graphical form. It is expected that the numerical results presented herein will serve as bench mark in future.

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“…Lal et al [19] have investigated the effect of random system properties on transverse nonlinear central deflection of laminated composite spherical shell panel subjected to hygro-thermo-mechanical loading, the higher order shear deformation theory and von-Karman nonlinear kinematics have been used for basic mathematical formulation. Nosier and Miri [20] have studied free-edge effects in laminated, circular, cylindrical shell panels subjected to hygrothermal loading, a combination of equivalent single layer and layerwise shell theories has been used. A general stress analysis has been developed in Sayman [21] for thick and thin multi-layered composite cylinders under hygrothermal loadings, uniform and parabolic temperature distributions have been chosen for the thermal loads and analytical solutions have been compared with the finite element solutions.…”

Section: Introductionmentioning

confidence: 99%

Hygrothermoelastic analysis of multilayered composite and sandwich shells

Brischetto

2013

Jnl of Sandwich Structures & Materials

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Refined two-dimensional models are proposed for the static hygrothermoleastic analysis of multilayered composite and sandwich shells. These shell models are developed in the framework of the Carrera's unified formulation (in a general and unified manner) by considering both equivalent single layer and layerwise multilayer description. The principle of virtual displacements contains elastic, thermal and hygroscopic strains. The governing equations allow mechanical, thermal and hygroscopic loads to be applied and they are solved in a closed-form solution. Thermal and hygroscopic loads are defined by means of appropriate temperature and moisture content profiles through the thickness of the shell, such profiles can ‘a priori’ be assumed or they can be calculated by solving the Fourier heat conduction equation and the Fick's moisture diffusion law. Such equations are solved in steady-state conditions and in curvilinear coordinates for the shell geometries. The presence of loads due to hygroscopic and thermal effects (in addition to the mechanical load) modifies the bending response of multilayered shells. Comparisons between classical and refined models, and between assumed and calculated temperature and moisture content profiles are proposed in the cases of composite and sandwich shells. The use of refined models combined with calculated temperature and moisture content profiles through the thickness is mandatory for a correct elasto-thermo-hygroscopic analysis of multilayered structures.

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Boundary-layer hygrothermal stresses in laminated, composite, circular, cylindrical shell panels

Cited by 19 publications

References 34 publications

Edge stresses analysis in laminated thick sandwich cylinder subjected to distributed hygrothermal loading

Edge stresses analysis in laminated thick sandwich cylinder subjected to distributed hygrothermal loading

Hygrothermoelastic Analysis of Orthotropic Cylindrical Shells

Hygrothermoelastic analysis of multilayered composite and sandwich shells

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