Systems and methods for determining strength of cylindrical structures by internal pressure loading

DeTeresa, Steven John; Groves, Scott Eric; Sanchez, Roberto Joseph; Andrade, William Andrew

Systems and methods for determining strength of cylindrical structures by internal pressure loading

Patent · Tue Aug 04 04:00:00 EDT 2015

OSTI ID:1207245

DeTeresa, Steven John; Groves, Scott Eric; Sanchez, Roberto Joseph; Andrade, William Andrew

In one embodiment, an apparatus, includes: a mandrel; an expansion cylinder, comprising: opposite first and second ends; an inner circumferential surface extending between the ends and characterized by an inner diameter, the inner circumferential surface defining a hollow cavity; an outer circumferential surface extending between the ends and characterized by an outer diameter that is greater than the inner diameter; and a plurality of slots extending from the inner circumferential surface to the outer circumferential surface and latitudinally oriented between the ends; and one or more base plates configured to engage one of the ends of the expansion cylinder. In another embodiment, a method includes: arranging an expansion cylinder inside a test cylinder; arranging a mandrel inside the expansion cylinder; applying a force to the mandrel for exerting a radial force on the expansion cylinder; and detecting one or more indicia of structural failure of the test cylinder.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC52-07NA27344

Assignee:: Lawrence Livermore National Security, LLC (Livermore, CA)

Patent Number(s):: 9,097,602

Application Number:: 13/748,443

OSTI ID:: 1207245

Country of Publication:: United States

Language:: English

References (19)

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Systems and methods for determining strength of cylindrical structures by internal pressure loading

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