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

Patent · Wed Jan 01 00:00:00 EST 1997

OSTI ID:870808

Lloyd, W Randolph ^[1]; Ward, Michael B ^[1]; Epstein, Jonathan S ^[1]

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1. Idaho Falls, ID

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.

• Research Organization: Idaho National Laboratory (INL), Idaho Falls, ID (United States); Lockheed Idaho Technologies Company
• Sponsoring Organization: USDOE
• DOE Contract Number: AC07-94ID13223; AC07-76ID01570
• Assignee: Lockheed Idaho Technologies Company (Idaho Falls, ID)
• Patent Number(s): US 5598738
• OSTI ID: 870808
• Country of Publication: United States
• Language: English

Related Subjects

load
apparatus
method
bolt-loaded
compact
tension
specimen
opposing
longitudinal
comprising
externally
threaded
portion
sized
threadedly
received
loading
rod
slidably
direction
internally
extending
longitudinally
outward
force
sensitive
transducer
positioned
engage
relative
bolt
bearing
surface
bear
forcibly
sandwich
disclosed
situ
determining
applied
crack
propagation
load apparatus
slidably received
crack propagation
threaded portion
extending longitudinally
longitudinal direction
bolt-loaded compact
applied force
externally threaded
compact tension
specimen load
longitudinally outward
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