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Composite laminate stiffnesses and their sensitivities.

Geier, B.*) and Zimmermann, R. (1994) Composite laminate stiffnesses and their sensitivities. In: ASME, Advances in Design Automation 1994., 2, pp. 237-246. The 1994 ASME Design Technocal Conference - 20th Design Automation Conf. Minneapolis, Minnesota, 11.-14.9. 1994..

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Abstract

The great number of possible stacking order to from laminates suggests to apply optimization, more frequently than usual, in the design of structures madeof composite materials. One of the columns upon which optimization of structures is built is the mathematical search procedures for locating a minimum ( or maximum ) of a constrained function. Efficient algorithms will require the evaluation of derivatives of the object function as well as of the constraints. In that context the sensitivities of laminate stiffness matrices may be required. In order to meet such a requirement the derivatives with respect to both ply thicknesses and ply angles, of laminate stiffnesses, including transverse shear stiffness, will be presented in this report.

Document Type:Conference or Workshop Item (Paper)
Additional Information: institution=ASME, LIDO-Berichtsjahr=1994,
Title:Composite laminate stiffnesses and their sensitivities.
Authors:
AuthorsInstitution or Email of Authors
Geier, B.*)UNSPECIFIED
Zimmermann, R.UNSPECIFIED
Date:1994
Journal or Publication Title:ASME, Advances in Design Automation 1994.
Volume:2
Page Range:pp. 237-246
Series Name:ASME, DE-Vol.69-2
Status:Published
Event Title:The 1994 ASME Design Technocal Conference - 20th Design Automation Conf. Minneapolis, Minnesota, 11.-14.9. 1994.
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L ST - Starrflüglertechnologien
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:02 Apr 2006
Last Modified:27 Apr 2009 12:00

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