Actions for Use of Portable

Email RIS file
Bookmark
Report an Issue

Use of Portable/in situ Stress-Strain Microprobe System to Measure Stress-Strain Behavior and Damage in Metallic Materials and Structures / FM. Haggag, JA. Wang, MA. Sokolov, KL. Murty

Conference Author
Nontraditional Methods of Sensing Stress, Strain, and Damage in Materials and Structures (1996 : )
Physical Description
1 online resource (14 pages) : illustrations, figures, tables
Additional Creators
Haggag, FM., Wang, JA., Sokolov, MA., Murty, KL., American Society for Testing and Materials, and ASTM International
Access Online

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Subscription required for access to full text.
License restrictions may limit access.
Summary
A novel portable/in situ Stress-Strain Microprobe (SSM) system was used to measure true-stress/true-plastic-strain (?t-?p) behavior of several met llic materials, welds, and their heat-affected-zones (HAZs) in various metallurgical and damage conditions. The SSM system utilized an automated ball indentation (ABI) technique to measure elastic modulus, yield strength, ?t-?p curve, strength coefficient, strain-hardening-exponent (uniform ductility), and to estimate fracture toughness (from the ABI-measured flow properties) in carbon steels, stainless steels, nickel alloys, aluminum alloys, titanium alloys, zirconium alloys, etc. Numerous ABI tests were also conducted on several nuclear pressure vessel steels (NPVSs) in the unirradiated, neutron irradiated, and post-irradiated thermally-annealed conditions. For all these test materials and conditions, the ABI-derived results were in good agreement with those from conventional standard test methods. Furthermore, the nondestructive ABI test results rigorously indicated the various levels of neutron-embrittlement damage and the percentage of ductility recovery following thermal annealing of the NPVS specimens. In situ/nondestructive structural applications of the SSM system and its ABI technique have been demonstrated by testing a circumferentially welded stainless steel pipe and a full-thickness section of a nuclear pressure vessel (using 90¿̐ư V-blocks and magnetic mounts for temporary attachment of the SSM testing head to the pipe and the steel section, respectively). All SSM localized tests were computer-controlled and conducted in less than 2 minutes per ABI test; depending on the desired strain rate. Example test results on metallic structural components and samples are presented in this paper.
Dates of Publication and/or Sequential Designation
Volume 1997, Issue 1318 (January 1997)
Subject(s)
Other Subject(s)
ISBN
9780803153714 (e-ISBN)
9780803124035
0803124031
Digital File Characteristics
text file PDF
Bibliography Note
Includes bibliographical references 21.
Other Forms
Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
Full text article also available for purchase.
Also available in PDF edition.
Reproduction Note
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1997. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
Technical Details
Mode of access: World Wide Web.
Source of Acquisition
ASTM International PDF Purchase price USD25.
View MARC record | catkey: 27999172