Characterization of welded polymer assemblies

Autor: Vladimir Gantchenko, Jacques Renard
Přispěvatelé: Centre des Matériaux (MAT), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)
Rok vydání: 2015
Předmět:
Zdroj: Revue des composites et des matériaux avancés
Revue des composites et des matériaux avancés, Lavoisier, 2015, 25 (3-4), pp.407-418. ⟨10.3166/rcma.25.1-12⟩
ISSN: 1169-7954
DOI: 10.3166/rcma.25.407-418
Popis: National audience; For different welded plastics assemblies by laser TWIST® we experimentally establish a plastic and breaking intrinsic stress criterion. Lot of plastic materials has been studied. We present here, the characterization of ABS assemblies and PA66 assemblies. The yield surfaces which characterize the limit of elasticity and the rupture, have been described by a modified Drucker-Prager criterion identified in the case of complex mixed modes state of stresses coupling tensile and shear stresses. For design purpose of welded zones, the proposed Drucker-Prager criterion has been used for the calculation and the simulation of breaking welded ABS plates and welded PA66 stepped plates. The comparison between experimental and numerical simulation values shows a relatively good agreement.
Databáze: OpenAIRE