Accession Number:

AD0460575

Title:

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

Descriptive Note:

Progress rept. no. 3,

Corporate Author:

BROWN UNIV PROVIDENCE RI

Personal Author(s):

• Satoh, K.
• Mylonas, C.

Report Date:

1965-04-01

Pagination or Media Count:

13.0

Abstract:

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 bent 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

Descriptors:

• *STEEL
• MECHANICAL PROPERTIES
• DUCTILITY
• COMPRESSIVE PROPERTIES
• BRITTLENESS
• FRACTURE(MECHANICS)
• ROLLING(METALLURGY)
• MACHINING
• SURFACES
• REDUCTION
• FAILURE(MECHANICS)
• FINISHES
• DEFORMATION
• TEMPERATURE
• ELASTIC PROPERTIES

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE