Te. Bruns et Da. Tortorelli, Topology optimization of non-linear elastic structures and compliant mechanisms, COMPUT METH, 190(26-27), 2001, pp. 3443-3459
Citations number
25
Categorie Soggetti
Mechanical Engineering
Journal title
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
A linear elastic response is assumed in most structural topology optimizati
on problems. While this assumption is valid for a wide variety oi problems,
it is not valid for structures undergoing large displacements. The elastic
structural analysis used here accommodates geometric and material non-line
arities. The material density field is filtered to enforce a length scale o
n the field variation and is penalized to remove less effective intermediat
e densities. The filtering scheme is embedded in the structural analysis to
resolve the non-existent solution to the solid-void topology problem. In t
his way., we know precisely what optimization problem is being solved. The
structural topology optimization formulation is also used to design complia
nt mechanisms. (C) 2001 Elsevier Science B.V. All rights reserved.