000013477 001__ 13477
000013477 005__ 20161114165555.0
000013477 04107 $$aeng
000013477 046__ $$k2011-05-25
000013477 100__ $$aSimone A., De
000013477 24500 $$aNonlinear Viscoelastic Analysis of a Pneumatic 2D Structure Interposed Between a Couple of Rigid Moving Planes

000013477 24630 $$n3.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000013477 260__ $$bNational Technical University of Athens, 2011
000013477 506__ $$arestricted
000013477 520__ $$2eng$$aA nonlinear planar model of visco-elastic balloon, interposed between a couple of moving rigid bodies, is formulated. The pneumatic structure is modeled as an initially circular cable, pre-stressed by an internal pressure, and constrained to remain in a planar domain. External pressure is assumed to be zero. The pushing bodies are modeled as a couple of frictionless rigid parallel bars, approaching each other normally, and causing squeezing of the pneumatic body. Motion is assumed slow, in such a way any inertial effects are negligible. Both cases of long and short bars are considered, the latter entailing the possibility of puncture of the deformable body. A thermoplastic polyurethane material behavior is considered, and proper constitutive relationships adopted. Several models are formulated, which differ for constitutive laws (inextensible, elastic, linearly or non linearly visco-elastic) and/or for kinematic analysis (small strains and displacements or finite kinematics). The governing mixed differential-algebraic equations are analytically or numerically integrated for several impressed motion time-histories and the main features of the phenomenon are investigated.

000013477 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013477 653__ $$aBalloon Mechanics, Contact Problem, Balloon Squeezing, Visco-elasticity, Fender-ship Model.

000013477 7112_ $$aCOMPDYN 2011 - 3rd International Thematic Conference$$cIsland of Corfu (GR)$$d2011-05-25 / 2011-05-28$$gCOMPDYN2011
000013477 720__ $$aSimone A., De$$iLuongo, A.
000013477 8560_ $$ffischerc@itam.cas.cz
000013477 8564_ $$s320709$$uhttps://invenio.itam.cas.cz/record/13477/files/165.pdf$$yOriginal version of the author's contribution as presented on CD, section: MS 06 Balloon Mechanics in Biology and Medicine.
000013477 962__ $$r13401
000013477 980__ $$aPAPER