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Titolo:
Optimization of a hyper-elastic structure with multibody contact using continuum-based shape design sensitivity analysis
Autore:
Kim, NH; Park, YH; Choi, KK;
Indirizzi:
Univ Iowa, Ctr Comp Aided Design, Iowa City, IA 52242 USA Univ Iowa Iowa City IA USA 52242 mp Aided Design, Iowa City, IA 52242 USA Univ Iowa, Dept Mech Engn, Iowa City, IA 52242 USA Univ Iowa Iowa City IAUSA 52242 Dept Mech Engn, Iowa City, IA 52242 USA
Titolo Testata:
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
fascicolo: 3, volume: 21, anno: 2001,
pagine: 196 - 208
SICI:
1615-147X(200104)21:3<196:OOAHSW>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
FINITE-ELEMENT FORMULATION; VARIATIONAL INEQUALITIES; PROJECTION;
Keywords:
design sensitivity analysis; multibody contact; hyper-elastic material;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Kim, NH Univ Iowa, Ctr Comp Aided Design, Iowa City, IA 52242 USA Univ Iowa Iowa City IA USA 52242 Design, Iowa City, IA 52242 USA
Citazione:
N.H. Kim et al., "Optimization of a hyper-elastic structure with multibody contact using continuum-based shape design sensitivity analysis", ST MULT OPT, 21(3), 2001, pp. 196-208

Abstract

In this paper, a continuum-based shape design sensitivity formulation is presented for a hyper-elastic structure with multibody frictional contact. Anearly incompressible constraint is treated using the pressure projection method that projects a hydrostatic pressure into a lower order space to avoid a volumetric locking. The variational formulation for multibody frictional contact is developed using a penalty method that regularizes the solution of the variational inequality. The material derivative of continuum mechanics is utilized to develop the continuum-based shape design sensitivity analysis for the hyper-elastic constitutive relation and penalized contact formulation. The sensitivity equation is solved at each converged load step using the same tangent stiffness of response analysis due to the path dependency of the sensitivity of the frictional contact problem. A very accurate and efficient sensitivity results are shown through shape optimization of awindshield wiper.

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Documento generato il 04/04/20 alle ore 12:10:25