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Evaluation of Transverse Thermal Stresses in Composite Plates Based on First-Order Shear Deformation Theory

Rolfes, R. and Noor, A.K. and Sparr, H. (1998) Evaluation of Transverse Thermal Stresses in Composite Plates Based on First-Order Shear Deformation Theory. Computer Methods in Applied Mechanics and Engineering, 167, pp. 355-368.

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Abstract

A postprocessing procedure is presented for the evaluation of the transverse thermal stresses in laminated plates. The analytical formulation is based on the first-order shear deformation theory and the plate is discretized by using a single-field displacement finite element model. The procedure is based on neglecting the derivatives of the in-plane forces and the twisting moments, as well as the mixed derivatives of the bending moments, with respect to the in-plane coordinates. The calculated transverse shear stiffnesses reflect the actual stacking sequence of the composite plate. The distributions of the transverse stresses through-the-thickness are evaluated by using only the transverse shear forces and the thermal effects resulting from the finite element analysis. The procedure is implemented into a postprocessing routine which can be easily incorporated into existing commercial finite element codes. Numerical results are presented for four- and ten-layer cross-ply laminates subjected to mechanical and thermal loads.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=1999,
Title:Evaluation of Transverse Thermal Stresses in Composite Plates Based on First-Order Shear Deformation Theory
Authors:
AuthorsInstitution or Email of Authors
Rolfes, R.UNSPECIFIED
Noor, A.K.UNSPECIFIED
Sparr, H.UNSPECIFIED
Date:1998
Journal or Publication Title:Computer Methods in Applied Mechanics and Engineering
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:167
Page Range:pp. 355-368
Status:Published
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):UNSPECIFIED
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Institut für Strukturmechanik
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 15:37

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