FRACTURE THEORY-AN INTRODUCTION

FRACTURE THEORY OR FRACTURE MECHANICS IS USED TO EXPLAIN THE FLAWS IN STRUCTURAL MATERIALS AND TO CONSIDER THE INFLUENCE OF CRACKS AND BRITTLENESS AND DUCTILITY IN QUANTITATIVE TERMS. A DUCTILE FRACTURE INVOLVES PLASTIC DEFORMATION BEFORE RUPTURE OCCURS WHEREAS BRITTLENESS OCCURS WHEN NON-DUCTILE METALS BREAK SUDDENLY WITH LITTLE OR NO PLASTIC DEFORMATION. FRACTURE, IN A BRITTLE MANNER, IS CAUSED BY THE INFLUENCE OF CRACKS, WHICH MAY START AT A STRESS CONCENTRATION AND SPREAD THROUGH THE MATERIAL RAPIDLY. HOWEVER, MOST METALS CAN SHOW EITHER TYPE OF BEHAVIOR DEPENDING ON TEMPERATURE AND NATURE OF LOADING. THE BASIC CONCEPTS IN LINEAR ELASTIC FRACTURE MECHANICS ARE DESCRIBED, SUCH AS STRESS CONCENTRATIONS, FRACTURAL TOUGHNESS, SURFACE ENERGY, FATIGUE AND STRESS CORROSION.

  • Supplemental Notes:
    • Vol 42, No 12, PP 137-142, 7 FIG, 1 TAB, 12 REF
  • Authors:
    • Endersbee, L A
  • Publication Date: 1970-12

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Filing Info

  • Accession Number: 00209390
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 18 1971 12:00AM