Shock transmissibility of threaded joints

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Description

Sandia National Laboratories (SNL) designs mechanical systems with threaded joints that must survive high shock environments. These mechanical systems include penetrators that must survive soil and rock penetration; drilling pipe strings that must survive rock-cutting, shock environments; and laydown weapons that must survive delivery impact shock. This paper summarizes an analytical study and an experimental evaluation of compressive, one-dimensional, shock transmission through a threaded joint in a split Hopkinson bar configuration. Thread geometries were scaled to simulate large diameter threaded joints with loadings parallel to the axis of the threads. Both strain and acceleration were evaluated with experimental measurements and ... continued below

Physical Description

8 p.

Creation Information

Hansen, N.R.; Bateman, V.I. & Brown, F.A. December 31, 1996.

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Description

Sandia National Laboratories (SNL) designs mechanical systems with threaded joints that must survive high shock environments. These mechanical systems include penetrators that must survive soil and rock penetration; drilling pipe strings that must survive rock-cutting, shock environments; and laydown weapons that must survive delivery impact shock. This paper summarizes an analytical study and an experimental evaluation of compressive, one-dimensional, shock transmission through a threaded joint in a split Hopkinson bar configuration. Thread geometries were scaled to simulate large diameter threaded joints with loadings parallel to the axis of the threads. Both strain and acceleration were evaluated with experimental measurements and analysis. Analytical results confirm the experimental conclusions that in this split Hopkinson bar configuration, the change in the one-dimensional shock wave by the threaded joint is localized to a length equal to a few diameters` length beyond the threaded joint.

Physical Description

8 p.

Notes

OSTI as DE98006144

Source

  • 67. Shock and vibration symposium, Monterey, CA (United States), 18 Nov 1996

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Identifier

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  • Other: DE98006144
  • Report No.: SAND--96-1436C
  • Report No.: CONF-961179--
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/639812 | External Link
  • Office of Scientific & Technical Information Report Number: 639812
  • Archival Resource Key: ark:/67531/metadc699011

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Creation Date

  • December 31, 1996

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Nov. 25, 2015, 2:16 p.m.

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Hansen, N.R.; Bateman, V.I. & Brown, F.A. Shock transmissibility of threaded joints, report, December 31, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc699011/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.