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The use of infra-red detectors for determination of the fracture mechanics parameters

Domenii publicaţii > Stiinte ingineresti + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Marsavina L, Tomlinson RA

Editorial: NATL INST OPTOELECTRONICS, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 6 (4), p.1323-1329, 2004.

Rezumat:

The utilisation of infra-red detectors is presented for determination the mixed mode stress intensity factors. The methodology involves the thermoelastic stress analysis using focal plane array thermal detectors, as DeltaTherm system. The range of the mixed mode stress intensity factors are obtined by fitting the equations describing the stress field around the crack tip, based on Muschelishvili’s approach to the thermoelastic data. The thermoelastic data is collected throughout the singular elastic stress field around a sharp notch inclined at 45(0) in a cruciform specimen subjected to biaxial loading.

Cuvinte cheie: detector infra-rosu, analiza termoelastica a tensiunilor, variatia factorilor de intensitate a tensiunii // infra-red detectors, thermoelastic stress analysis, stress intensity factor range

URL: http://inoe.inoe.ro/JOAM/pdf6_4/Marsavina.pdf