PLASTIC STRESS-STRAIN HISTORY AT NOTCH ROOTS IN TENSILE STRIPS UNDER MONOTONIC LOADING

A comparison of theory with tests on flat, notched specimens of AISI 4340 steel, heat treated, with initial elastic concentration factors of 1.5 to 2.0 shows a systematic discrepancy which is attributed in part to notch strengthening due to triaxial stress. The discrepancy is of the order of 5% for the Neuber theory and larger for the Hardrath-Ohman theory for notch strains of less than 0.015 in./in. and becomes progressively larger for both theories at notch strains in excess of 0.015 in./in. For the mild notches studied here, the Neuber theory has better predictive value.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00144851
• Corporate Authors:

  Society for Experimental Stress Analysis

  21 Bridge Square
  Westport, CT  United States  06880
• Authors:
  • Papirno, R
• Publication Date: 1971-10

Media Info

• Features: References;
• Pagination: p. 446-552
• Serial:
  • Experimental Mechanics
  • Volume: 11
  • Issue Number: 10
  • Publisher: Society for Experimental Mechanics
  • ISSN: 0014-4851

Subject/Index Terms

• TRT Terms: Plasticity; Yield stress
• Uncontrolled Terms: Elastic stress
• Old TRIS Terms: Notch stress; Plastic strength
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00035959
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Oct 20 1972 12:00AM