Interactions of Stress Waves with Cracks in Rock Media

Abstract

Two-dimensional numerical techniques have been applied to obtain solutions of problems of stress wave interactions with cracks in rock media. The SHEP code, a finite-difference Lagrangian program that incorporates a comprehensive elastic-plastic-hydrodynamic behavioral model, was utilized as the basic numerical program in this study. Significant new capabilities of the code developed during this program were (a) the treatment of antiplane shear, or out- of-plane displacement (where the motion is dependent only on the in-plane coordinates) and (b) the incorporation of a dynamic brittle fracture criterion.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 01, 1972
Accession Number
AD0743548

Entities

People

  • Mark H. Wagner
  • Paul J. Blatz

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Agreements
  • Computational Science
  • Crack Propagation
  • Crack Tips
  • Geometry
  • Mechanical Properties
  • Mechanics
  • Numerical Analysis
  • Secondary Waves
  • Shear Modulus
  • Shear Stresses
  • Stratified Fluids
  • Stress Waves
  • Stresses
  • Two Dimensional
  • Wave Propagation
  • Waves

Readers

  • Computational Modeling and Simulation
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Materials Science (Mechanical Engineering).