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Analysis of multifastener composite jointsA new numerical procedure for determining load proportioning in multiple-hole mechanical joints in composite plates is presented. The joints are loaded in double lap fashion in tension with pins through the holes. The commercial finite-element program ABAQUS is used to predict the load proportioning among holes using two independent plane stress finite-element models, one representing the composite inner lap and one representing the two steel outer laps, interacting through rigid circular surfaces. The circular surfaces effectively represent rigid pins. Load proportioning is predicted for a number of geometries. Excellent correlation with experimental data is obtained. Experimental and computed surface strains are also found to compare well. The assumption of a radial cosine distribution of contact stress between pin and hole is shown to be substantially in error for some holes.
Document ID
19920051731
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Griffin, O. H., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Hyer, M. W.
(NASA Langley Research Center Hampton, VA, United States)
Yalamanchili, S. R.
(Virginia Polytechnic Institute and State University Blacksburg, United States)
Shuart, M. J.
(NASA Langley Research Center Hampton, VA, United States)
Prasad, C. B.
(NASA Langley Research Center Hampton, VA, United States)
Cohen, D.
(Hercules Aerospace Co., Bacchus Works, Magna UT, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1992
Subject Category
Structural Mechanics
Report/Patent Number
AIAA PAPER 92-2426
Meeting Information
Meeting: AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Location: Dallas, TX
Country: United States
Start Date: April 13, 1992
End Date: April 15, 1992
Accession Number
92A34355
Distribution Limits
Public
Copyright
Other

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