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Fracture mechanics analyses for skin-stiffener debondingThe debond configurations presently subjected to 3D FEM fracture mechanics analyses are respectively of the flange-skin strip and skin-stiffener configuration type. Two methods employing the virtual crack closure technique were used to evaluate the strain energy release rate, or 'G-value' distributions across the debond front. Both methods yielded nearly identical G-value distributions for the debond configurations studied; they were compared with plane strain and shell analyses results from the literature for the flange skin strip configuration, and found to be in good agreement. Mode II is dominant for the skin-stiffener debond configuration.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Raju, I. S.
(NASA Langley Research Center Hampton, VA, United States)
Sistla, R.
(NASA Langley Research Center Hampton, VA, United States)
Krishnamurthy, T.
(NASA Langley Research Center Hampton, VA, United States)
Lotts, C. G.
(Analytical Services & Materials, Inc. Hampton, VA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Publication Information
Publication: In: AIAA(ASME)ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 34th and AIAA/ASME Adaptive Structures Forum, La Jolla, CA, Apr. 19-22, 1993, Technical Papers. Pt. 6 (A93-33876 1
Publisher: American Institute of Aeronautics and Astronautics
Subject Category
Structural Mechanics
Report/Patent Number
AIAA PAPER 93-1502
Accession Number
Funding Number(s)
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