Numerical Analysis of Solids at Failure

Abstract

This report presents a summary of the research supported by the AFOSR during the period June 1 2008 to May 31 2011 on the formulation and analysis of numerical methods for the analysis of failure in solids and structures of interest to the Air Force mission. Of special interest is the consideration of dynamic range, including dynamic fracture and failure. The development of new enhanced finite element methods that incorporate the discontinuous solutions characteristic of the failure of solids and structures has been one of the main outcomes of the project. The new methods include finite element formulations that address the special issues arising in the dynamic range, including for instance brittle/ductile failure mode transitions and crack branching. Similarly, the extension of these finite elements to the general three-dimensional range and the failure of partially saturated poroplastic media have also been addressed in this project.

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Document Details

Document Type
Technical Report
Publication Date
Aug 20, 2011
Accession Number
ADA563994

Entities

People

  • Francisco Armero

Organizations

  • University of California, Berkeley

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Applied Mechanics
  • Composite Materials
  • Computational Mechanics
  • Computational Science
  • Earthquake Engineering
  • Environmental Engineering
  • Failure Mode And Effect Analysis
  • Finite Element Analysis
  • Geometry
  • Materials
  • Materials Science
  • Mathematical Analysis
  • Mechanics
  • Numerical Analysis
  • Physical Theories
  • Pore Pressure
  • Three Dimensional

Fields of Study

  • Engineering

Readers

  • Academic Conference Management
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Materials Science (Mechanical Engineering).