EP 3242758 A1 20171115 - AUXETIC STRUCTURES WITH ANGLED SLOTS IN ENGINEERED PATTERNS FOR CUSTOMIZED NPR BEHAVIOR AND IMPROVED COOLING PERFORMANCE
Title (en)
AUXETIC STRUCTURES WITH ANGLED SLOTS IN ENGINEERED PATTERNS FOR CUSTOMIZED NPR BEHAVIOR AND IMPROVED COOLING PERFORMANCE
Title (de)
AUXETISCHE STRUKTUREN MIT GENEIGTEN SCHLITZEN IN MANIPULIERTEN MUSTERN FÜR MASSGESCHNEIDERTES NPR-VERHALTEN UND VERBESSERTER KÜHLLEISTUNG
Title (fr)
STRUCTURES AUXÉTIQUES À FENTES INCLINÉES SELON DES MOTIFS MIS AU POINT POUR UN COMPORTEMENT NPR PERSONNALISÉ ET PERFORMANCES DE REFROIDISSEMENT AMÉLIORÉES
Publication
Application
Priority
- US 201562101840 P 20150109
- US 201562118826 P 20150220
- US 2016012769 W 20160109
Abstract (en)
[origin: WO2016112368A1] Auxetic structures, effusion-cooling auxetic sheets, systems and devices with auxetic structures, and methods of using and methods of making auxetic structures are disclosed. An auxetic structure is disclosed which includes an elastically rigid body with opposing top and bottom surfaces. First and second pluralities of elongated apertures extend through the elastically rigid body from the top surface to the bottom surface. The first plurality of elongated apertures extends transversely with respect to the second plurality of elongated apertures. The first and/or second pluralities of elongated apertures are obliquely angled with the top surface of the elastically rigid body. The elongated apertures are cooperatively configured to provide a desired cooling performance while exhibiting stress reduction through negative Poisson's Ratio (NPR) behavior under macroscopic planar loading conditions. For example, the auxetic structure may exhibit an effusion cooling effectiveness of approximately 30-50 Eta and a Poisson's Ratio of approximately -0.2 to -0.9%.
IPC 8 full level
B21D 28/24 (2006.01); B29C 55/02 (2006.01); B32B 3/10 (2006.01); B32B 3/24 (2006.01); B32B 38/04 (2006.01)
CPC (source: EP US)
F23R 3/002 (2013.01 - EP US); F23R 3/06 (2013.01 - US); C22C 19/03 (2013.01 - EP US); F23R 2900/00005 (2013.01 - US); F23R 2900/00014 (2013.01 - US); F23R 2900/03041 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2016112368 A1 20160714; CA 2973378 A1 20160714; CN 108367329 A 20180803; CN 108367329 B 20210409; EP 3242758 A1 20171115; EP 3242758 A4 20180718; EP 3242758 B1 20190911; JP 2018508738 A 20180329; RU 2017126597 A 20190211; RU 2017126597 A3 20190604; US 2018274783 A1 20180927
DOCDB simple family (application)
US 2016012769 W 20160109; CA 2973378 A 20160109; CN 201680012297 A 20160109; EP 16735531 A 20160109; JP 2017555433 A 20160109; RU 2017126597 A 20160109; US 201615542636 A 20160109