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Biaxial yielding of polypropylene/elastomeric polyolefin blends: Effect of elastomer content and thermal annealing
(John Wiley & Sons Inc, 2008-07)
The yield behavior of commercial homopolymer polypropylene modified by elastomeric metallocene-catalyzed polyolefin blends was investigated by carrying out uniaxial tension, uniaxial compression, plane strain compression, ...
Numerical modeling of uneven thermoplastic polymers behaviour using experimental stress-strain data and pressure dependent von Mises yield criteria to improve design practices
(2011)
Classical plasticity theories and yield criteria for ductile materials, such as Tresca and von Mises original formulations predict that yielding is independent on the hydrostatic stress state (pressure), which means that ...
Numerical modeling of uneven thermoplastic polymers behaviour using experimental stress-strain data and pressure dependent von Mises yield criteria to improve design practices
(2011)
Classical plasticity theories and yield criteria for ductile materials, such as Tresca and von Mises original formulations predict that yielding is independent on the hydrostatic stress state (pressure), which means that ...
Higher-order asymptotic refinements for score tests in proper dispersion models
(2001)
This paper develops second-order asymptotic theory for score tests in proper dispersion models without imposing known dispersion. Our results can be used to provide an Edgeworth expansion for the test statistic or to obtain ...
Comportamiento Mecanobiológico del Tejido Dentinal Restaurado con Postes Prefabricados de Fibra de Vidrio
(2013)
El objetivo de esta investigación fue diseñar y solucionar un modelo matemático para establecer el comportamiento mecanobiológico del tejido dentinal cuando es restaurado con postes prefabricados de fibra de vidrio bajo ...
Comportamiento mecánico de polipropileno modificado con una poliolefina elastoméricaMechanical behaviour of polypropylene modified with an elastomeric polyolefin
(Sociedad Argentina de Materiales, 2005-12)
En este trabajo se estudia ampliamente la respuesta mecánica de mezclas novedosas basadas en PP y un 10, 20, y 30% en peso de una poliolefina elastomérica (POEs). La morfología de las mezclas consiste en un patrón continuo ...
Otimização topológica de estruturas contínuas de polipropileno com restrições de tensão baseadas em critérios de escoamento
(Universidade Federal de Minas GeraisUFMG, 2015-06-25)
This paper develops a stress-based topology optimization method for structures with mechanical properties of polypropylene. This method compares a yield criteria proposed for polypropylene with the yield criteria of the ...
Stresses in implant-supported overdentures with bone resorption
(Porto Alegre, 2010)
Objectives: This 3D-finite elements method study evaluated the effect of bone resorption on the stress distribution in overdentures with bone loss surrounding implants and resorption of the distal ridge. Methods: Tridimensional ...
Stresses in implant-supported overdentures with bone resorption
(Porto Alegre, 2010)
Objectives: This 3D-finite elements method study evaluated the effect of bone resorption on the stress distribution in overdentures with bone loss surrounding implants and resorption of the distal ridge. Methods: Tridimensional ...