NDTnet 1998 Aug, Vol.3 No.8

Abstract

Developing and application of build-in non-destructive control systems is one of the most perspective and effective ways of transferring to new qualitative level of safety and reliability of high loaded machinery.The use of new of principle constructive so cold "intellectual" materials increases the affectivity and reliability of build-in control systems essentially. Self-control of appearance and development of fatigue damages, its identification and localization, reaction on external influence and stressed state correction are the main nominations of these used as power constructive elements materials parallel with their traditional functions: take upon themself operation loads and provide strength of constructions.

Build-in active structural elements of these materials carry the power load and at the same time react on calculated load exceeding and achievement of before failure state. Structural element system (matrix) utilization permit to localize the dangerous zone appearance in material.

Active structural elements matrix can be manufactured as one or several composite point or ribbon lays with crossing in one or different levels depending on the direction of working loads, the type of manufactured from this material constructions, defect permissible size and so on.

Information from active structural elements matrix is gathered with the help of collection and analysing information system, analysed according to corresponding algorithm and monitored together with defect location and main characteristics or anomalous stress distribution places and other recording parametres indication to the situated in pilot (operator) cabin display. Exit to light or sound signalling, corresponding active elements of reverse link can be additionally provided; information recording to any carrier can also be realized. Such system can generate, record and analyse electrical, optical, magnetical, acoustical emission and other signals.

Build-in non-destructive control systems with intellectual materials keeping different types of active elements utilization constructive principles are examined; itpermits to carry out defects appearance self-control, its identification and localization, response reaction to the external influence and stressed state correction.

Abstract Source:
Book of Abstracts, 7th European Conference on Non-Destructive Testing, 26-29 May 1998, ISBN: 87-986898-0-00

Full-Text Source:
Proceedings of the 7th European Conference on Non-Destructive Testing, 26-29 May 1998, ISBN:

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