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2014 | Vol. 21, No. 2 | 243--250
Tytuł artykułu

Possibility of defects detection by ir thermography in multi-layered polyaramide materials used for military applications

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Recently the composite materials have been often applied in designs of light ballistic protections as the progress in domain of polymers chemistry has made possible the production of materials providing efficient protection against small arms bullets and fragments. Usually the composites apply textile materials joined with plastic what creates multi-layered composite materials used for personal ballistic protections (vests and helmets for shots and fragments protection) and armours of car vehicles and stationary objects. This type of composite materials is largely made on the basis of very resistant aramid and polyethane fibres joined with phenolic and polyurethane resins and other elastic mixtures. These materials are characterized as lightweight, non-corrosive and easy to form what makes them fit well to the surface, which they have to protect. Defects, which can appear in this type of multi-layered composite materials usually, are inaccuracies in gluing the composite layers and stratifications and delaminations occurring under hits of fragments and bullets. A method that possibly can be used to non-destructive testing of this type of materials and detection of internal defects deploys infrared thermography. In order to determine the potential use of thermal methods the specialized software was developed for computing 3D (three-dimensional) dynamic temperature distributions in anisotropic multi-layered solid body with subsurface defects. The paper includes some results of simulation representing possibilities for the use of IR thermography methods to test such composite materials.
Wydawca

Czasopismo
Rocznik
Strony
243--250
Opis fizyczny
Bibliogr. 5 poz., rys.
Twórcy
autor
  • Military University of Technology Faculty of Mechatronics and Aerospace S. Kaliskiego Street 2, 00-908 Warszawa 49, Poland tel.:+48 22 6839543, fax: +48 22 6837581 , apanas@wat.edu.pl
autor
  • Military Institute of Armament Technology Wyszyńskiego Street 7, 05-220 Zielonka, Poland Tel.:+48 22 7614487, +48 22 761452, fax: +48 22 7614444 , prachtm@witu.mil.pl
  • Military Institute of Armament Technology Wyszyńskiego Street 7, 05-220 Zielonka, Poland Tel.:+48 22 7614487, +48 22 761452, fax: +48 22 7614444 , prachtm@witu.mil.pl
Bibliografia
  • [1] Swiderski, W., Habaj, W., Thermography – applications to the testing of bullet protection and ballistic limit V50 for composite armours based on reinforced plastics, Proceedings of the International Conference on Quality Control by Artificial Vision, Vol. 1, pp. 49-53, Le Creusot 2001.
  • [2] Swiderski, W., Infrared inspection of light composite armours with small arms impacts, Mezinarodni Konference Pyrotechniku, pp. 127-132, Luhacovice 2002.
  • [3] Kosky, P. G., Maylotte, D. H., Gallo, J. P., Angstrom‘s method applied to simultaneous measurements of thermal diffusivity and heat transfer coefficients, Part 1: Theory, Int. Com. Heat Mass Trans, 26(8), pp. 1051-9, 1999.
  • [4] ThermoCalc TM - 30L, Operation Manual, Tomsk 2012.
  • [5] Swiderski, W., Lock-in Thermography to rapid evaluation of destruction area in composite materials used in military applications, SPIE, Vol. 5132, pp. 506-517, 2003.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-4c1fc859-82fa-401b-a945-68faa5d3e0cc
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