Title:
|
An Engineering Solution for using Coarse Meshes in the Simulation of Delamination with Cohesive Zone Models
|
Author:
|
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 |
Subject(s):
|
-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 |
Rights:
|
Tots els drets reservats
|
Document type:
|
Article Article - Published version |
Published by:
|
National Aeronautics and Space Administration
|
Share:
|
|