A Combined Experimental and Numerical Technique to Estimate Interfacial Bond Strength in MMC-Encapsulated Ceramic Systems

Abstract

Design and simulation of lightweight composite vehicle armors require mechanical characterization and quantification of the interfacial bond strength between metallic and ceramic components. This report presents a combined numerical and experimental technique to estimate the interfacial strength parameters of a ceramic tile encapsulated by a metal matrix composite. Numerical simulations are used to design an experiment that uses a spherical indenter to introduce shear stresses and cause delamination along the interface without fracturing the underlying ceramic. Indentation experiments are conducted, and the area of the delamination zone observed by post-test c-scan is correlated with parametric simulation results to determine the cohesive zone strength and failure parameters of the interface.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2013
Accession Number
ADA582407

Entities

People

  • Brandon McWilliams
  • Chian-fong Yen
  • David Gray
  • Robert A. Carter

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Composite Materials
  • Delamination
  • Elastic Properties
  • Elements
  • Hydrostatic Pressure
  • Materials
  • Mechanical Properties
  • Mechanics
  • Metal Matrix Composites
  • Modulus Of Elasticity
  • Plastic Properties
  • Residual Stress
  • Shear Stresses
  • Silicon Carbide
  • Simulations
  • Stresses
  • Yield Strength

Readers

  • Reinforced Composite Materials
  • Structural Health Monitoring of Composite Structures.