Load apparatus and method for bolt-loaded compact tension test specimen

Patent · Tue Feb 04 04:00:00 EST 1997

OSTI ID:434840

Buescher, Jr, B J; Lloyd, W R; Ward, M B; Epstein, J S

A bolt-loaded compact tension test specimen load apparatus includes: (a) a body having first and second opposing longitudinal ends, the first end comprising an externally threaded portion sized to be threadedly received within the test specimen threaded opening; (b) a longitudinal loading rod having first and second opposing longitudinal ends, the loading rod being slidably received in a longitudinal direction within the body internally through the externally threaded portion and slidably extending longitudinally outward of the body first longitudinal end; (c) a force sensitive transducer slidably received within the body and positioned to engage relative to the loading rod second longitudinal end; and (d) a loading bolt threadedly received relative to the body, the loading bolt having a bearing end surface and being positioned to bear against the transducer to forcibly sandwich the transducer between the loading bolt and loading rod. Also disclosed is a method of in situ determining applied force during crack propagation in a bolt-loaded compact tension test specimen. 6 figs.

• Research Organization: EG & G Idaho Inc; Lockheed Idaho Technologies Company
• Sponsoring Organization: USDOE
• DOE Contract Number: AC07-94ID13223; AC07-76ID01570
• Assignee: Lockheed Idaho Technologies Co., Idaho Falls, ID (United States)
• Patent Number(s): US 5,598,738/A/
• Application Number: PAN: 8-415,879
• OSTI ID: 434840
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DESIGN
MATERIALS HANDLING
MEASURING METHODS
MECHANICAL TESTS
SAMPLE CHANGERS
SAMPLE HOLDERS