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Cavitation erosion characteristics of poly(methyl methacrylate) in a rotating disk deviceThe cavitation erosion behavior including the initiation, dynamics and mechanism of damage process on perspex and epoxy resin specimens tested in a rotating disk device were discussed with respect to exposure time. The inception of erosion always took place at the location nearest to the center of rotation of the disk. Subsequently, as exposure time increased, erosion initiated at other locations as well. Light optical photographs and scanning electron micrographs clearly indicate that most of the material loss appears to occur form the networks of cracks due to their interaction and pits indicate particle debris. The optical degradation (loss of transmittance) on perspex was observed to be more on the rear side than on the front side. Previously announced in STAR as N83-11329
Document ID
19830060633
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Veerabhadra Rao, P.
(NASA Lewis Research Center Cleveland, OH, United States)
Rao, N. S. L.
(NASA Lewis Research Center Cleveland, OH, United States)
Rao, B. C. S.
(Indian Institute of Science Bangalore, India)
Date Acquired
August 11, 2013
Publication Date
January 1, 1983
Publication Information
ISSN: 0043-1648
Subject Category
Nonmetallic Materials
Accession Number
83A41851
Distribution Limits
Public
Copyright
Other

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