Model comparison for inflatables using boundary element techniques

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This paper focuses on numerical techniques for inflatable structures where, typically, the structure is a light membrane enclosing an incompressible fluid. Large displacements and subdomains with high aspect ratio are often characteristic of this class of problems, to which the finite-element / boundary-element (FE/BE) paradigm is an auspicious approach for numerical approximation. The FE/BE approach constitutes discretizing the structure with the finite-element method and employing a boundary-integral representation for the fluid problem for discretization with the boundary-element method. A marked advantage of this representation with respect to the conventional partial-differential-equation-based view of finite-element methods for fluids is the bypassing of volumetric meshing, rendering the FE/BE approach an enabling method for simulation of inflatables. The present work compares different structure and fluid models and judges their applicability based on numerical results.
Original languageEnglish
Title of host publicationFirst ECCOMAS Young Investigators Conference (ECCOMAS 2012 Young Investigators Conference, Aveiro, Portugal, April 24-27, 2012)
EditorsA Andrade-Campos, N Lopes, R.A.F. Valente, H Varum
Publication statusPublished - 2012

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