DSpace DSpace UPC
 Català   Castellano   English  

E-prints UPC >
Altres >
Enviament des de DRAC >

Empreu aquest identificador per citar o enllaçar aquest ítem: http://hdl.handle.net/2117/8570

Ítem no disponible en accés obert per política de l'editorial

Arxiu Descripció MidaFormat
SO_Advanced_Composite_Materials_Simulation.pdf885,86 kBAdobe PDF Accés restringit

Citació: Oller, S. [et al.]. Advanced composite material simulation. A: Portuguese Conference on Fracture. "11th Portuguese Conference on Fracture". Lisboa: 2008, p. 3-22.
Títol: Advanced composite material simulation
Autor: Oller Martínez, Sergio Horacio Veure Producció científica UPC; Martínez, X; Barbat Barbat, Horia Alejandro Veure Producció científica UPC; Rastellini, F
Data: 2008
Tipus de document: Conference report
Resum: A computational methodology is presented for modelling the material non-linear mechanical behaviour of composite structures made of FRP (Fibre-Reinforced Polymers) laminates. The model is based on the appropriate combination of the constitutive models of component materials, considered to behave as isolated continua, together with additional ‘closure equations’ that characterize the micromechanics of the composite from a morphological point of view. To this end, any appropriate constitutive model may be selected for each phase. Each component is modelled separately and the global response is obtained by assembling all contributions taking into account the interactions between components in a general phenomenological way. To model the behaviour of a single unidirectional (UD) composite lamina, a Serial-Parallel continuum approach has been developed assuming that components behave as parallel materials in the fibres alignment direction and as serial materials in orthogonal directions. Taking into account the internal morphology of the composite material, it is devised a strategy for decoupling and coupling component phases. This methodology [Rastellini 2006], named “compounding of behaviours”, allows to take into consideration local degradation phenomena (in the constituents materials), like plasticity, etc. in a coupled manner. It is based on the proper management of homogenous constitutive models, already available for each component. In this way, it is used all developments achieved in constitutive modelling of plain materials, what makes possible the transference of this technology to composites. A lamination theory complemented with the proposed UD model is employed to describe the mechanical behaviour of multidirectional laminates. A specific solution strategy for the general non linear case is proposed. It provides quick local and global convergences, what makes the model suitable for large scale structures. The model brings answers on the non-linear behaviour of composites, where classical micro-mechanics formulas are restricted to their linear elastic part. The methodology is validated through several numerical analyses and contrasted against experimental data and benchmark tests.
ISBN: 978-989-95683-0-3
URI: http://hdl.handle.net/2117/8570
Apareix a les col·leccions:(MC)2 - Grup de Mecànica Computacional en Medis Continus. Ponències/Comunicacions de congressos
Departament de Resistència dels Materials i Estructures en Enginyeria. Ponències/Comunicacions de congressos
Altres. Enviament des de DRAC
Comparteix:


Stats Mostra les estadístiques d'aquest ítem

SFX Query

Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets.

Per a qualsevol ús que se'n vulgui fer no previst a la llei, dirigiu-vos a: sepi.bupc@upc.edu

 

Valid XHTML 1.0! Programari DSpace Copyright © 2002-2004 MIT and Hewlett-Packard Comentaris
Universitat Politècnica de Catalunya. Servei de Biblioteques, Publicacions i Arxius