Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
A numerical framework to analyze fracture in composite materials: from R-curves to homogenized softening laws
Year:2018
Research Areas
  • Fracture,
  • Aircraft materials
Information
Abstract
A numerical framework to obtain the crack resistance curve (R-curve) and its corresponding softening law for fracture analysis in composite materials under small scale bridging has been developed. The use case addresses the intralaminar transverse tensile fracture of a unidirectional ply of carbon fiber-reinforced polymer AS4/8552. The R-curve is computed for this material using a micromechanical embedded model corresponding to the intralaminar transverse tensile fracture toughness characteristic. The model combines an embedded cell approach with the Linear Elastic Fracture Mechanics (LEFM) displacement field to analyze the local crack growth problem including fiber/matrix interface debonding and matrix ligaments bridging as the main energy dissipation mechanisms. Other large scale toughening effects as, for instance, fiber bridging were not included in the model. Parametric analysis were carried out to assess the influence of the properties of the material constituents on the R-curve behavior and on the corresponding homogenized cohesive laws.
International
Si
JCR
Si
Title
International Journal of Solids And Structures
ISBN
0020-7683
Impact factor JCR
2,081
Impact info
Datos JCR del año 2015
Volume
134
10.1016/j.ijsolstr.2017.10.031
Journal number
From page
216
To page
228
Month
MARZO
Ranking
Participants
  • Autor: Miguel Herráez Matesanz (UPM)
  • Autor: Carlos Daniel Gonzalez Martinez (UPM)
  • Autor: Claudio Lopes (IMDEA Materiales)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Materiales Estructurales Avanzados y Nanomateriales
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)