Modelling the Fracture Behavior of a 350WT Steel

Abstract

This report is a summary of work performed to apply fracture tools developed in previous studies to a number of different tests on 350WT steel. This work is a continuation of two previous studies: the first involved the development and implementation of a micromechanical failure model, and the second developed a finite element post-processor to compute strain energy release rates and Weibull stresses. The project was divided into a number of phases. The first phase was to determine temperature and strain rate dependent material properties from published sources. Ductile and brittle fracture parameters for the Gurson failure criteria were then determined through FE calibration with existing Charpy V-notch (CVN) and dynamic tear ductile-to-brittle transition(DBT) data. Once the parameters were obtained, the model was applied to DBT analyses of a CVN parametric study involving specimen width, and an explosive loading test.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2014
Accession Number
AD1007844

Entities

People

  • Brian Yuen
  • Lei Jiang
  • Rick Link

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Canada
  • Computational Fluid Dynamics
  • Crack Propagation
  • Crack Tips
  • Cracks
  • Equations
  • Explosives
  • Failure Mode And Effect Analysis
  • J Integrals
  • Materials
  • Mechanics
  • Near Field
  • Plastic Explosives
  • Spatial Distribution
  • Strain Rate
  • Surfaces
  • Transition Temperature

Fields of Study

  • Materials science

Readers

  • Computer Science.
  • Materials Science (Mechanical Engineering).