Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Computational micromechanics of fiber kinking in unidirectional FRP under different environmental conditions
Year:2017
Research Areas
  • Fracture,
  • Numeric methods, finite elements,
  • Elastic materials,
  • Plastic materials,
  • Homogenization,
  • Means with microstructure,
  • Aerospace industry,
  • Aircraft materials
Information
Abstract
The determination of ply properties of Fiber Reinforced Polymers (FRP) for particular operational environmental conditions in aeronautical applications is mandatory in order to fulfill current industry stringent certification requirements. However, the traditional experimental approach requires massive investments of resources and time. From the behaviour obtained experimentally, constitutive equations including failure criteria are then devised to be used in the design of FRP structures. The ply longitudinal behaviour under compression is generally the most difficult to measure and characterize. In this work, an alternative coupled experimental-computational micromechanics approach is proposed to determine the longitudinal compression properties of unidirectional FRP plies under different environmental conditions. This methodology includes experimental characterization of matrix and fiber/matrix interface, combined with numerical simulations of realistic microstructures. The interface decohesion is simulated using cohesive-frictional interactions. A pressure dependent, elasto-plastic model that includes tensile damage is employed to capture the matrix nonlinear behaviour. The numerical predictions match the experimentally-obtained ply properties available in the literature in a remarkable way and suggest that virtual ply property characterization is a mature and reliable approach to conduct screening of materials.
International
Si
JCR
Si
Title
Composites Part a-Applied Science And Manufacturing
ISBN
1359-835X
Impact factor JCR
3,012
Impact info
Datos JCR del año 2013
Volume
144
10.1016/j.compscitech.2017.03.014
Journal number
From page
26
To page
35
Month
MAYO
Ranking
Participants
  • Autor: Fernando Naya Montans (UPM)
  • Autor: Miguel Herráez Matesanz (UPM)
  • Autor: Carlos Daniel Gonzalez Martinez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Materiales Estructurales Avanzados y Nanomateriales
  • Centro o Instituto I+D+i: CENTRO INVEST. MATERIALES ESTRUCTURALES (CIME)
  • Departamento: Ciencia de Materiales
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)