摘要：This paper deals with the shape generation of structural shells within the field
of Conceptual Design. A virtual simulation of previous experiments on
physical “homeostatic” models, carried out by other authors, is herein
presented. The physical experiments were based on the biological principle of
“Homeostasis”: when an external agent attacks the structure, the latter
defends itself intelligently to recover its bearing capacity. Heat is
the external agent used to cause the model material degradation. Thus the
model adopts a more appropriate structural shape in order to continue
resisting loads. The virtual simulation is performed using a finite element
software with a thermal elasto-plastic material model. In particular,
Polymethyl Methacrylate (PMMA) is considered. Comparisons between the
shapes found with the physical and virtual experiments are presented.
Additionally, the obtained geometry is employed as the shape of a concrete
shell and a stress analysis is presented. A quasi-membranal behavior is
shown.
