Fiber push-out study of a copper matrix composite with an engineered interface

Experiments and cohesive element simulation

J. H. You*, W. Lutz, H. Gerger, A. Siddiq, A. Brendel, C. Höschen, S. Schmauder, Muhammad Amir

*Corresponding author for this work

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The fiber push-out test is a basic method to probe the mechanical properties of the fiber/matrix interface of fiber-reinforced metal matrix composites. In order to estimate the interfacial properties, parameters should be calibrated using the measured load-displacement data and theoretical models. In the case of a soft matrix composite, the possible plastic yield of the matrix has to be considered for the calibration. Since the conventional shear lag models are based on elastic behavior, a detailed assessment of the plastic effect is needed for accurate calibration. In this paper, experimental and simulation studies are presented regarding the effect of matrix plasticity on the push-out behavior of a copper matrix composite with strong interface bonding. Microscopic images exhibited significant local plastic deformation near the fibers leading to salient nonlinear response in the global load-displacement curve. For comparison, uncoated interface with no chemical bonding was also examined where the nonlinearity was not observed. A progressive FEM simulation was conducted for a complete push-out process using the cohesive zone model and inverse fitting. Excellent coincidence was achieved with the measured push-out curve. The predicted results confirmed the experimental observations.

Original languageEnglish
Pages (from-to)4277-4286
Number of pages10
JournalInternational Journal of Solids and Structures
Volume46
Issue number25-26
Early online date1 Sep 2009
DOIs
Publication statusPublished - 15 Dec 2009

Fingerprint

Copper
Composite
Fiber
copper
composite materials
fibers
Fibers
Composite materials
matrices
Experiment
Simulation
plastics
simulation
Experiments
fiber-matrix interfaces
Plastics
Calibration
metal matrix composites
Cohesive Zone Model
FEM Simulation

Keywords

  • Cohesive zone model
  • Fiber push-out test
  • Fiber-reinforced copper matrix composite
  • Finite element simulation
  • Interface debonding
  • Traction-separation law

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)
  • Condensed Matter Physics
  • Applied Mathematics
  • Modelling and Simulation

Cite this

Fiber push-out study of a copper matrix composite with an engineered interface : Experiments and cohesive element simulation. / You, J. H.; Lutz, W.; Gerger, H.; Siddiq, A.; Brendel, A.; Höschen, C.; Schmauder, S.; Amir, Muhammad.

In: International Journal of Solids and Structures, Vol. 46, No. 25-26, 15.12.2009, p. 4277-4286.

Research output: Contribution to journalArticle

You, J. H. ; Lutz, W. ; Gerger, H. ; Siddiq, A. ; Brendel, A. ; Höschen, C. ; Schmauder, S. ; Amir, Muhammad. / Fiber push-out study of a copper matrix composite with an engineered interface : Experiments and cohesive element simulation. In: International Journal of Solids and Structures. 2009 ; Vol. 46, No. 25-26. pp. 4277-4286.
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