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Alternative methods to model frictional contact surfaces using NASTRANElongated (slotted) holes have been used extensively for the integration of equipment into Spacelab racks. In the past, this type of interface has been modeled assuming that there is not slippage between contact surfaces, or that there is no load transfer in the direction of the slot. Since the contact surfaces are bolted together, the contact friction provides a load path determined by the normal applied force (bolt preload) and the coefficient of friction. Three alternate methods that utilize spring elements, externally applied couples, and stress dependent elements are examined to model the contacted surfaces. Results of these methods are compared with results obtained from methods that use GAP elements and rigid elements.
Document ID
19920015088
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hoang, Joseph
(General Electric Co. Houston, TX, United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1992
Publication Information
Publication: Computer Software Management and Information Center, Twentieth NASTRAN (R) Users' Colloquium
Subject Category
Structural Mechanics
Accession Number
92N24331
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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