A methodology to measure the interface shear strength by means of the fiber push-in test

Rodriguez, M. and Molina Aldareguía, Jon M. and González Martínez, Carlos Daniel and Llorca Martinez, Francisco Javier (2012). A methodology to measure the interface shear strength by means of the fiber push-in test. "Composites Science and Technology", v. 72 (n. 15); pp. 1924-1932. ISSN 0266-3538.

Description

Title: A methodology to measure the interface shear strength by means of the fiber push-in test
Author/s:
  • Rodriguez, M.
  • Molina Aldareguía, Jon M.
  • González Martínez, Carlos Daniel
  • Llorca Martinez, Francisco Javier
Item Type: Article
Título de Revista/Publicación: Composites Science and Technology
Date: 12 October 2012
ISSN: 0266-3538
Volume: 72
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A methodology is presented to measure the fiber/matrix interface shear strength in composites. The strategy is based on performing a fiber push-in test at the central fiber of highly-packed fiber clusters with hexagonal symmetry which are often found in unidirectional composites with a high volume fraction of fibers. The mechanics of this test was analyzed in detail by means of three-dimensional finite element simulations. In particular, the influence of different parameters (interface shear strength, toughness and friction as well as fiber longitudinal elastic modulus and curing stresses) on the critical load at the onset of debonding was established. From the results of the numerical simulations, a simple relationship between the critical load and the interface shear strength is proposed. The methodology was validated in an unidirectional C/epoxy composite and the advantages and limitations of the proposed methodology are indicated.

Funding Projects

TypeCodeAcronymLeaderTitle
FP7213371MASSIFUnspecifiedMAnagement of Security information and events in Service InFrastructures

More information

Item ID: 16002
DC Identifier: http://oa.upm.es/16002/
OAI Identifier: oai:oa.upm.es:16002
Official URL: http://www.sciencedirect.com/science/article/pii/S0266353812003144
Deposited by: Memoria Investigacion
Deposited on: 18 Oct 2013 11:47
Last Modified: 03 Nov 2014 12:37
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