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A Damage Tolerance Method for Preliminary Aircraft Design

Bogenfeld, Raffael Marius and Freund, Sebastian (2019) A Damage Tolerance Method for Preliminary Aircraft Design. DLR-Interner Bericht. DLR-IB-FA-BS-2019-142. 41 S.

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Abstract

This report describes a state-of-the-art Damage Tolerance (DT) method according to the structural analysis manual HSB. Therefore, the behavior of preexisting damage in a load-sustaining structure is evaluated for a specified load spectrum. All analysis steps to be conducted are and also the implementation into a design loop for the preliminary aircraft design is pointed out. The described DT procedures consider damage in form of a through-thickness crack. Thus, the application is limited to metallic structures. In the current version, damage is considered to occur only to skin sections. The basic variant of the method calculates the DT behavior of isotropic plates. However, according to the structural analysis manual, stiffening elements are considered by empirical correction factors. Furthermore, all python functions of the DT analysis module are explained in this report.

Item URL in elib:https://elib.dlr.de/137269/
Document Type:Monograph (DLR-Interner Bericht)
Title:A Damage Tolerance Method for Preliminary Aircraft Design
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Bogenfeld, Raffael MariusRaffael.Bogenfeld (at) dlr.dehttps://orcid.org/0000-0003-3883-269X
Freund, Sebastiansebastian.freund (at) dlr.dehttps://orcid.org/0000-0003-0006-1367
Date:December 2019
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:41
Status:Published
Keywords:Damage Tolerance, Preliminary aircraft design, Gesamtentwurf, Schadenstoleranz, Crack growth
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 - Simulation and Validation (old), L - Structures and Materials (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Structural Mechanics
Deposited By: Böhringer-Thelen, Isolde
Deposited On:09 Nov 2020 10:33
Last Modified:09 Nov 2020 10:33

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