25 May 2012
25 May 2012
ASTM has approved a new International standard for damage resistance testing of sandwich constructions, which they say is a common composite structural configuration.
ASTM D7766/D7766M, Practice for Damage Resistance Testing of Sandwich Constructions, was developed by Subcommittee D30.09 on Sandwich Construction, part of ASTM International Committee D30 on Composite Materials.
"ASTM D7766/D7766M will provide instructions for modifying composite laminate quasi-static indentation and drop weight impact test methods to determine damage resistance properties of sandwich constructions,” says Adam J. Sawicki, Technical Fellow, Structures Technology, Boeing, and D30 chairman. “These properties are required to design composite sandwich constructions, to demonstrate the structure is sufficiently durable and exhibits either no damage or limited damage under specific damage-producing events in service.”
According to ASTM, the new standard will be used by designers of structures using sandwich construction in the aerospace, marine, civil infrastructure, automotive and energy industries.
Subcommittee D30.09 invites interested parties to assist in its standards developing activities. D30.09 is currently in the early planning stages of a proposed new standard for damage tolerance properties of sandwich constructions.
Cobra International is celebrating its 40th year and has commissioned a book that will look at 40 key projects and 40 key people that were integral to the company’s growth. ‘Klaus Simmer and The King Cobra: A breakthrough in surfboard design and production technology’ is an extract article from this book and a breakthrough composites product for Cobra, establishing its presence as a manufacturer of high performance windsurf boards and creating global visibility for the Cobra brand.
ZSK will hold its bi-annual technology showcase on 21-22 September 2018 at its Krefeld, Germany, headquarters. The Embroidery Technology Show assembles more than 25 exhibitors from around the world to discuss emerging trends in the embroidery manufacturing industry and demonstrate the latest products produced using techniques such as tailored fibre placement (TFP) or smart textiles.
Solvay has signed a ten-year agreement for the supply of composites and adhesives to be used across Bell's military and commercial rotorcraft programmes, including the Bell 429, 407, 505, 525, V-22, and UH-1.