Warning: error_log(/dades/dugi/log//querys.log) [function.error-log]: failed to open stream: Read-only file system in /dades/dugi/lib/log/log.php on line 32
DUGi: Ítem | DUGiDocs - Simulation of Delamination Propagation in Composites Under High-Cycle Fatigue by Means of Cohesive-Zone Models

Ítem


Simulation of Delamination Propagation in Composites Under High-Cycle Fatigue by Means of Cohesive-Zone Models

A damage model for the simulation of delamination propagation under high-cycle fatigue loading is proposed. The basis for the formulation is a cohesive law that links fracture and damage mechanics to establish the evolution of the damage variable in terms of the crack growth rate dA/dN. The damage state is obtained as a function of the loading conditions as well as the experimentally-determined coefficients of the Paris Law crack propagation rates for the material. It is shown that by using the constitutive fatigue damage model in a structural analysis, experimental results can be reproduced without the need of additional model-specific curve-fitting parameters

© NASA TP Technical Reports, 2006, núm. 214532

National Aeronautics and Space Administration

Autor: Turon Travesa, Albert
Costa i Balanzat, Josep
Camanho, Pedro Manuel Ponces Rodrigues de Castro
Dávila, Carlos G.
Data: desembre 2006
Resum: A damage model for the simulation of delamination propagation under high-cycle fatigue loading is proposed. The basis for the formulation is a cohesive law that links fracture and damage mechanics to establish the evolution of the damage variable in terms of the crack growth rate dA/dN. The damage state is obtained as a function of the loading conditions as well as the experimentally-determined coefficients of the Paris Law crack propagation rates for the material. It is shown that by using the constitutive fatigue damage model in a structural analysis, experimental results can be reproduced without the need of additional model-specific curve-fitting parameters
Format: application/pdf
Cita: 008229
Accés al document: http://hdl.handle.net/10256/8244
Llenguatge: eng
Editor: National Aeronautics and Space Administration
Col·lecció: Reproducció digital del document publicat a: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20070004889_2007004119.pdf
Articles publicats (D-EMCI)
És part de: © NASA TP Technical Reports, 2006, núm. 214532
Drets: Tots els drets reservats
Matèria: Materials laminats
Laminated materials
Materials compostos
Composite materials
Materials compostos -- Mètodes de simulació
Composite materials -- Simulation methods
Materials compostos -- Deslaminatge
Composite materials -- Delamination
Títol: Simulation of Delamination Propagation in Composites Under High-Cycle Fatigue by Means of Cohesive-Zone Models
Tipus: info:eu-repo/semantics/article
Repositori: DUGiDocs

Matèries


Warning: error_log(/dades/dugi/log//dugi.log) [function.error-log]: failed to open stream: Read-only file system in /dades/dugi/lib/log/log.php on line 32

Autors


Warning: error_log(/dades/dugi/log//dugi.log) [function.error-log]: failed to open stream: Read-only file system in /dades/dugi/lib/log/log.php on line 32


Warning: fopen(/dades/dugi/cache/98648e720a75860a3dd5e6b31c9e057d_.html) [function.fopen]: failed to open stream: Read-only file system in /dades/dugi/end_cache.php on line 2