An Engineering Solution for using Coarse Meshes in the Simulation of Delamination with Cohesive Zone Models

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Títol:	An Engineering Solution for using Coarse Meshes in the Simulation of Delamination with Cohesive Zone Models
Autor/a:	Turon Travesa, Albert; Dávila, Carlos G.; Camanho, Pedro Manuel Ponces Rodrigues de Castro; Costa i Balanzat, Josep
Abstract:	NASA/TM-2005-213547
Abstract:	This paper presents a methodology to determine the parameters used in the simulation of delamination in composite materials using decohesion finite elements. A closed-form expression is developed to define the stiffness of the cohesive layer. A novel procedure that allows the use of coarser meshes of decohesion elements in large-scale computations is proposed. The procedure ensures that the energy dissipated by the fracture process is correctly computed. It is shown that coarse-meshed models defined using the approach proposed here yield the same results as the models with finer meshes normally used in the simulation of fracture processes
Matèries:	-Mecànica de fractura -Fracture mechanics -Materials compostos -- Mètodes de simulació -Composite materials -- Simulation methods -Materials compostos -- Fatiga -Composite materials -- Fatigue -Materials compostos -- Deslaminatge -Composite materials -- Delamination
Drets:	Tots els drets reservats
Tipus de document:	Article Article - Versió publicada
Publicat per:	National Aeronautics and Space Administration
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Turon Travesa, Albert; Costa i Balanzat, Josep; Camanho, Pedro Manuel Ponces Rodrigues de Castro; Dávila, Carlos G.

Turon Travesa, Albert; Camanho, Pedro Manuel Ponces Rodrigues de Castro; Costa i Balanzat, Josep; Dávila, Carlos G.

Dávila, Carlos G.; Camanho, Pedro Manuel Ponces Rodrigues de Castro; Turon Travesa, Albert

Mayugo Majó, Joan Andreu; Camanho, Pedro Manuel Ponces Rodrigues de Castro; Maimí Vert, Pere; Dávila, Carlos G.

Maimí Vert, Pere; Camanho, Pedro Manuel Ponces Rodrigues de Castro; Mayugo Majó, Joan Andreu; Dávila, Carlos G.

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