FRACTURE CHARACTERISTICS OF STRUCTURAL METALS.

Abstract

An examination was conducted to determine the applicability of plane strain fracture toughness values, K SUB IC, as a possible handbook design parameter. The program included: compilation of available data on plane strain fracture toughness, measurement of K sub IC for a variety of materials to supplement existing data, evaluation of influence of test method on K sub IC, and determination of certain processing history and section size effects on K sub IC. Fracture toughness measurements indicated that reasonable agreement can be obtained from tests conducted with various specimen geometries. Although K sub IC values reported from different laboratories showed considerable scatter, due presumably to variations between heats of material, definite differences in material classes could be distinguished. On this basis, K sub IC can serve as a relative rating parameter which would aid in material selection. In addition, quantitative estimates can also be made of the load-carrying capacity of components containing possible defects. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 22, 1965
Accession Number
AD0611873

Entities

People

  • E. A. Steigerwald
  • M. F. Amateau

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Agreements
  • Buildings And Structures
  • Geometry
  • Handbooks
  • Materials
  • Materials Laboratories
  • Measurement
  • Payload
  • Research Facilities
  • Test And Evaluation
  • Test Methods
  • Toughness

Readers

  • Materials Science (Mechanical Engineering).
  • Systems Analysis and Design