Numerical Investigations of Fracture and Micro-Mechanics in Ceramics.

Abstract

This document contains three technical papers: (1) 'Surface Flaw Effects on Crack Propagation from Subsonic Water Drop Impact' The effects of surface flaws on ceramic target damage from subsonic water drop impacts are investigated using numerical code simulations based on fundamental wave propagation and fracture mechanics concepts. (2) 'Effects of Surface Pores in Silicon Nitride Impacted by a Water Drop' A water drop impacting directly on a surface pore may significantly increase the probability of crack formation and growth near the pore boundary. (3) 'Strain Energy Release Associated with Circumferential Cracks Around Embedded Particles' Numerical code simulations are used to determine the strain energy release associated with circumferential cracks around spherical particles embedded in tension within homogeneous matrix materials.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1979
Accession Number
ADA066252

Entities

People

  • Larry Deangelo
  • Louis Y. Cheng
  • Martin Rosenblatt
  • Y. Marvin Ito

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Ceramic Materials
  • Compound Semiconductors
  • Equations
  • Fluid Mechanics
  • Fracture (Mechanics)
  • Materials
  • Materials Laboratories
  • Mechanics
  • Particles
  • Plastic Explosives
  • Silicon Carbide
  • Simulations
  • Stress Waves
  • Stresses
  • Tensile Stress

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Materials Science (Mechanical Engineering).