Evaluation of transverse thermal stresses in composite plates based on first-order shear deformation theory

verfasst von: R. Rolfes, A. K. Noor, H. Sparr
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.
Externe Organisation(en): University of Virginia
Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR) Standort Braunschweig
Typ: Artikel
Journal: American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Band: 369
Seiten: 167-176
Anzahl der Seiten: 10
ISSN: 0277-027X
Publikationsdatum: 1997
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Maschinenbau

BibTeX

@article{03592c6493074d07b27305f05fe2f9cf,
title = "Evaluation of transverse thermal stresses in composite plates based on first-order shear deformation theory",
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.",
author = "R. Rolfes and Noor, {A. K.} and H. Sparr",
note = "Funding information: The work of A.K. Noor was partially supported by NASA Grant NAG-l-2016 and AFOSR Grant F49620-96-l-0462. The authors acknowledge the assistanceo f Jeanne M. Peters of the University of Virginia for generating the exact three-dimensional solutions, and Thea M. Ganoe of the University of Virginia in preparing the final manuscript and improving the figures.",
year = "1997",
language = "English",
volume = "369",
pages = "167--176",
journal = "American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP",
issn = "0277-027X",
publisher = "American Society of Mechanical Engineers(ASME)",
}