|Call for Stakeholders to Develop Hydroburst Test Method
ASTM Subcommittee D30.04, Lamina and Laminate Test Methods, seeks users, testers, and producers of composites and filament-wound composites to participate in a round robin or provide technical comments on a draft Standard Hydroburst Test Method applicable to composite overwrapped pressure vessels, rocket motor casings, flywheels and other filament-wound composite structures.
A subcommittee task force invites individuals to develop the standard with representatives from NASA, the University of Texas Center for Electromechanics, University of San Diego, and two aerospace companies.
Task force chairman Kevin Konno says the test method under development will be an improvement over the flat coupon split-D and NOL ring test methods. It will help developers characterize true static and fatigue hoop properties of a filament wound structure which is crucial if you are building a structure which has significant loads or cycles, says Konno, mechanical engineer, NASA Glenn Research Center, Cleveland, Ohio.
Subcommittee chairman Peter Grant, is an aerospace-structures engineer currently leading the development of composite allowables for Boeing Commercial Aircraft, Seattle, Wash. Grant and other subcommittee members will review and ballot the final draft standard.
To participate in this activity, contact Kevin Konno, NASA Glenn Research Center, Cleveland, Ohio (phone: 216/433-8373). Committee D30 meets March 17-20 in Kansas City, Mo. For membership or meeting details, contact Jim Olshefsky, director, Committee Services, ASTM International (phone: 610/832-9714). //
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