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

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

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Externe Organisationen

  • University of Virginia
  • Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR) Standort Braunschweig

Details

OriginalspracheEnglisch
Seiten (von - bis)355-368
Seitenumfang14
FachzeitschriftComputer Methods in Applied Mechanics and Engineering
Jahrgang167
Ausgabenummer3-4
PublikationsstatusVeröffentlicht - 3 März 1999
Extern publiziertJa

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. Published by Elsevier Science S.A.

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Evaluation of transverse thermal stresses in composite plates based on first-order shear deformation theory. / Rolfes, R.; Noor, A. K.; Sparr, H.
in: Computer Methods in Applied Mechanics and Engineering, Jahrgang 167, Nr. 3-4, 03.03.1999, S. 355-368.

Publikation: Beitrag in FachzeitschriftArtikelForschungPeer-Review

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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. Published by Elsevier Science S.A.",
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.",
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Download

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T1 - Evaluation of transverse thermal stresses in composite plates based on first-order shear deformation theory

AU - Rolfes, R.

AU - Noor, A. K.

AU - Sparr, H.

N1 - 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.

PY - 1999/3/3

Y1 - 1999/3/3

N2 - 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. Published by Elsevier Science S.A.

AB - 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. Published by Elsevier Science S.A.

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U2 - 10.1016/S0045-7825(98)00150-9

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JO - Computer Methods in Applied Mechanics and Engineering

JF - Computer Methods in Applied Mechanics and Engineering

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