REVERSED-BEND TESTS OF ABS-C STEEL WITH AS-ROLLED AND MACHINED SURFACES

Comparative tests between bars with as-rolled and with machined surfaces show a small difference in the compressive prestrain needed to exhaust the original extensional ductility of the steel, as this is determined by the reversed bend test. Machined bars show a higher exhaustion limit (prestrain) than as-rolled bars by 0.03 at 70 F and 0.06 at -16 F. Stress calculations show that the most brittle fractures may occur at applied elastic macroscopic stresses as low as about 50 ksi at 70 F and about 30 ksi at -16 F. Highly ductile bars sustained a stress close to 90 ksi at both test temperatures. (Author)

• Supplemental Notes:
  • Report on Macrofracture Fundamentals. Distribution limitation now removed. NOTE: Only 35mm microfilm is available. No microfiche.
• Corporate Authors:

  Brown University

  Providence, RI  United States  02912
• Authors:
  • Satoh, K
  • Mylonas, C
• Publication Date: 1965-4

Media Info

• Pagination: 24 p.

Subject/Index Terms

• TRT Terms: Brittleness; Compressive strength; Deformation; Ductility; Elasticity (Mechanics); Failure; Finishes; Fracture mechanics; Hot rolling; Machining; Materials tests; Mechanical properties; Metal working; Reduction (Chemistry); Steel; Strain (Mechanics); Stresses; Surfaces; Temperature
• Identifier Terms: Ship Structure Committee
• Uncontrolled Terms: Compressive properties
• Old TRIS Terms: Reduction; Rolling metallurgy; Steel testing
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00327666
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: SSC-166 Prog Rpt.
• Contract Numbers: NOBS-88294
• Files: TRIS
• Created Date: Feb 18 1981 12:00AM