Accession Number : ADA441468


Title :   Development of a Cavitation Erosion Resistant Advanced Material System


Corporate Author : MAINE UNIV AT ORONO DEPT OF MECHANICAL ENGINEERING


Personal Author(s) : Kendrick, Light H ; Caccese, Vincent


Full Text : http://www.dtic.mil/dtic/tr/fulltext/u2/a441468.pdf


Report Date : Nov 2005


Pagination or Media Count : 76


Abstract : Advancements in both the design and construction of high-speed naval vessels have necessitated the evaluation of the building materials in a cavitating environment. Given their weight advantages, construction materials are often either aluminum or glass reinforced polymer (GRP) composites. Historically, neither of these materials has performed well in a cavitating environment. The objective of this effort was to evaluate cavitation erosion protection alternatives for a GRP composite structure used in a cavitating environment. Screening of the various design alternatives was done using the ASTM 032 vibratory induced cavitation test method and a relative ranking of each protection system was generated. Results from the testing show that a GRP composite system can be designed to greatly increase the cavitation erosion resistance of the material, but this resistance remains below common metallic materials. A solution identified during this study involves the use of durable elastomer materials as the protection mechanism.


Descriptors :   *COMPOSITE MATERIALS , *SHIP HULLS , *REINFORCING MATERIALS , *HULLS(STRUCTURES) , *CAVITATION , *EROSION RESISTANCE , *CONSTRUCTION MATERIALS , METALS , ENVIRONMENTS , ELASTOMERS , GLASS , ALUMINUM , COMPOSITE STRUCTURES , NAVAL VESSELS , POLYMERS


Subject Categories : Laminates and Composite Materials
      Marine Engineering


Distribution Statement : APPROVED FOR PUBLIC RELEASE