Accession Number:

ADA051498

Title:

On the Hardening Response in Small Deformation of Metals.

Descriptive Note:

Technical rept.,

Corporate Author:

CALIFORNIA UNIV BERKELEY DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

• Caulk,D. A.
• Naghdi,P. M.

Report Date:

1978-01-01

Pagination or Media Count:

50.0

Abstract:

This paper is concerned with a special class of hardening response functions for small deformation of elastic-plastic materials, its application to isotropic metals, and comparison of the theoretical results with experimental cyclic stress-strain curves for two different metals. The theoretical development is carried out within the scope of the existing purely mechanical theory for the rate-independent response of elastic-plastic materials, which admits the existence of a single loading function, as well as certain accepted idealizations. After summarizing the basic equations for small deformation, detailed attention is given to the development of a special form of the hardening response function, motivated mainly by the observation that the stress-strain curves for uniaxial cyclic loading of a fairly large class of metals attain -- after several cycles -- the so-called saturation hardening.

Descriptors:

• *ALUMINUM ALLOYS
• *DEFORMATION
• *STAINLESS STEEL
• *HARDENING
• STRESS STRAIN RELATIONS
• LOADS(FORCES)
• ELASTIC PROPERTIES
• MATHEMATICAL ANALYSIS
• ISOTROPISM
• PLASTIC PROPERTIES
• CYCLIC TESTS

Subject Categories:

• Metallurgy and Metallography
• Fabrication Metallurgy
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE