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

Abstract

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.

Inventors:
 [1];  [2];  [2];  [2]
+ Show Inventor Affiliations
  1. (Idaho Falls, ID)
  2. Idaho Falls, ID
Issue Date:
Research Org.:
Idaho National Laboratory (INL), Idaho Falls, ID (United States); Lockheed Idaho Technologies Company
Sponsoring Org.:
USDOE
OSTI Identifier:
870808
Patent Number(s):
5598738
Assignee:
Lockheed Idaho Technologies Company (Idaho Falls, ID)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16B - DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
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DOE Contract Number:  
AC07-94ID13223; AC07-76ID01570
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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; /73/

Citation Formats

Buescher, Jr., Brent J., Lloyd, W Randolph, Ward, Michael B, and Epstein, Jonathan S. Load apparatus and method for bolt-loaded compact tension test specimen. United States: N. p., 1997. Web.
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Buescher, Jr., Brent J., Lloyd, W Randolph, Ward, Michael B, & Epstein, Jonathan S. Load apparatus and method for bolt-loaded compact tension test specimen. United States.
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Buescher, Jr., Brent J., Lloyd, W Randolph, Ward, Michael B, and Epstein, Jonathan S. Wed . "Load apparatus and method for bolt-loaded compact tension test specimen". United States. https://www.osti.gov/servlets/purl/870808.
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@article{osti_870808,
title = {Load apparatus and method for bolt-loaded compact tension test specimen},
author = {Buescher, Jr., Brent J. and Lloyd, W Randolph and Ward, Michael B and Epstein, Jonathan S},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1997},
month = {Wed Jan 01 00:00:00 EST 1997}
}
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Works referenced in this record:

Aqueous Stress-Corrosion Cracking of High-Toughness D6AC Steel
book,  

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