EP 1725859 A2 20061129 - HEATH MONITORING METHOD AND APPARATUS FOR COMPOSITE MATERIALS
Title (en)
HEATH MONITORING METHOD AND APPARATUS FOR COMPOSITE MATERIALS
Title (de)
ZUSTANDSÜBERWACHUNGSVERFAHREN UND -VORRICHTUNG FÜR VERBUNDWERKSTOFFE
Title (fr)
PROCEDE ET APPAREIL DE CONTROLE DE LA SANTE DE MATERIAUX COMPOSITES
Publication
Application
Priority
- US 2005005604 W 20050223
- US 54732704 P 20040224
Abstract (en)
[origin: WO2005081930A2] An in-situ method for monitoring the heath of a composite component (103) utilizes a condition sensor (101) made of electrically conductive particles (109) dispersed in a polymeric matrix (111). The sensor is bonded or otherwise formed on the matrix surface of the composite material. Age-related shrinkage of the sensor matrix results in a decrease in the resistivity of the condition sensor. Correlation of measured sensor resistivity with data from aged specimen allows indirect determination of mechanical properties and remaining age of the composite component.
IPC 8 full level
G01N 27/04 (2006.01); G01N 33/44 (2006.01); H01B 1/20 (2006.01); G01N 17/00 (2006.01)
CPC (source: EP)
G01N 27/041 (2013.01); G01N 33/442 (2013.01); G01N 17/00 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 2005081930 A2 20050909; WO 2005081930 A3 20060309; EP 1725859 A2 20061129; EP 1725859 A4 20071017
DOCDB simple family (application)
US 2005005604 W 20050223; EP 05723488 A 20050223