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Damage Progression in Buckle-Resistant Notched Composite Plates Loaded in Uniaxial CompressionResults of an experimental and analytical evaluation of damage progression in three stitched composite plates containing an angled central notch and subjected to compression loading are presented. Parametric studies were conducted systematically to identify the relative effects of the material strength parameters on damage initiation and growth. Comparisons with experiments were conducted to determine the appropriate in situ values of strengths for progressive failure analysis. These parametric studies indicated that the in situ value of the fiber buckling strength is the most important parameter in the prediction of damage initiation and growth in these notched composite plates. Analyses of the damage progression in the notched, compression-loaded plates were conducted using in situ material strengths. Comparisons of results obtained from these analyses with experimental results for displacements and axial strains show good agreement.
Document ID
20010020264
Acquisition Source
Langley Research Center
Document Type
Reprint (Version printed in journal)
Authors
McGowan, David M.
(NASA Langley Research Center Hampton, VA United States)
Davila, Carlos G.
(NASA Langley Research Center Hampton, VA United States)
Ambur, Damodar R.
(NASA Langley Research Center Hampton, VA United States)
Date Acquired
September 7, 2013
Publication Date
April 19, 2001
Subject Category
Composite Materials
Report/Patent Number
AIAA Paper 2001-1482
Meeting Information
Meeting: AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Location: Seattle, WA
Country: United States
Start Date: April 16, 2001
End Date: April 19, 2001
Sponsors: Alpha STAR Corp., American Helicopter Society, Inc., American Inst. of Aeronautics and Astronautics, American Society of Civil Engineers, American Society of Mechanical Engineers
Distribution Limits
Public
Copyright
Public Use Permitted.
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