Structural design optimization of short-fiber composite parts considering manufacturing aspects

Markus Schatz, Horst Baier

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

Abstract

Injection molding of short-fiber composite parts is recently gaining importance. This is reflected by the fact, that about eighteen percent of all carbon fibers are produced as short fibers, of which more than nine out of ten are processed by injection molding. However, designing short-fiber composite parts necessitates the consideration of both, mechanical as well as process aspects so as to yield an optimal structural performance. The latter aspect is especially challenging, since the molding process has for instance a strong imprint on the mechanical aspects through determination of fiber orientations. This marks the challenge addressed in this paper; namely, to set up a mathematically profound optimization framework, capable of simultaneously regarding mechanical and technical aspects. For this sake, a general optimization strategy, based on coupled structural and fluid simulations, is developed and discussed. Its numerical performance will be assessed based on the optimization of an industry relevant composite part; the engine bracket. Ultimately, the obtained optimal structures will be post-processed exploiting so-called shadow prices, allowing for instance an extrapolation of the objective value with respect to design critical requirements or extensive sensitivity studies with respect to the material parameters, together aggregating in elaboration advices indicating optimal design revisions.

OriginalspracheEnglisch
TitelSAMPE Long Beach 2016 Conference and Exhibition
Herausgeber (Verlag)Soc. for the Advancement of Material and Process Engineering
ISBN (elektronisch)9781934551233
PublikationsstatusVeröffentlicht - 2016
VeranstaltungSAMPE Long Beach 2016 Conference and Exhibition - Long Beach, USA/Vereinigte Staaten
Dauer: 23 Mai 201626 Mai 2016

Publikationsreihe

NameInternational SAMPE Technical Conference
Band2016-January

Konferenz

KonferenzSAMPE Long Beach 2016 Conference and Exhibition
Land/GebietUSA/Vereinigte Staaten
OrtLong Beach
Zeitraum23/05/1626/05/16

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