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NUMERICAL ASSESSMENT OF DAMAGE TOLERANCE ALLOWABLES FOR NEW DESIGN CONCEPTS OF STIFFENED COMPOSITE PANELS

Bach, Tobias (2016) NUMERICAL ASSESSMENT OF DAMAGE TOLERANCE ALLOWABLES FOR NEW DESIGN CONCEPTS OF STIFFENED COMPOSITE PANELS. 30th Congress of the International Council of the Aeronatical Sciences, 25.-30.09.2016, Daejeon, Korea.

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Abstract

Within an automated framework, a structural design process is built that increases the number of design concepts applicable during the optimization of composite wings. Because Damage Tolerance allowables are determined by expensive tests for each structural concept, only one concept is usually available for the optimization. To overcome this problem, a procedure based on detailed Finite Element models has been developed, where the design concepts are modelled as super-stringers. Strain fields are evaluated to assess the capability of structural concepts the bear higher strains at a steady load level. The process is demonstrated on an I-stiffened panel with a wide range of material combinations.

Item URL in elib:https://elib.dlr.de/106955/
Document Type:Conference or Workshop Item (Speech)
Title:NUMERICAL ASSESSMENT OF DAMAGE TOLERANCE ALLOWABLES FOR NEW DESIGN CONCEPTS OF STIFFENED COMPOSITE PANELS
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bach, Tobiastobias.bach (at) dlr.deUNSPECIFIED
Date:28 September 2016
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Composite Panels, Design Concept, Composite Structural Optimization
Event Title:30th Congress of the International Council of the Aeronatical Sciences
Event Location:Daejeon, Korea
Event Type:international Conference
Event Dates:25.-30.09.2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures and Materials, L - Simulation and Validation
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Bach, Tobias
Deposited On:21 Oct 2016 16:07
Last Modified:21 Oct 2016 16:07

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