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101 0 _aeng
102 _aNL
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181 0 _ai
182 0 _ab
200 1 _aSimple and robust methodology of defect thermal characterization based on thermal quadrupoles and polynomial approximation
_fD. A. Nesteruk, V. P. Vavilov, A. O. Chulkov, D. Burleigh
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 25 tit.]
330 _aAn approach is proposed to evaluate the depth and thickness of planar defects detected by thermal nondestructive testing (TNDT) methods. A 1D 3-layer thermal problem is solved by using the technique of thermal quadrupoles, and the solution of the corresponding inverse problem is presented in the polynomial form. The inverse solution involves a number of TNDT experimental parameters, in particular, differential temperature signals, dimensionless contrasts and their observation times. The accuracy of defect characterization is in the range of 2–15% in defect depth and from 10 to 40% in defect thickness. It is believed that the proposed defect characterization approach can be easily implemented in existing TNDT systems to provide approximate values of defect parameters.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tNDT & E International
463 _tVol. 124
_v[102522, 9 p.]
_d2021
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _athermal nondestructive testing
610 1 _adefect characterization
610 1 _athermal quadrupoles
610 1 _apolynomial fitting
610 1 _aнеразрушающий контроль
610 1 _aдефекты
610 1 _aполиномы
701 1 _aNesteruk
_bD. A.
_cspecialist in the field of descriptive geometry
_cAssociate Professor of Tomsk Polytechnic University, Candidate of technical sciences
_f1979-
_gDenis Alekseevich
_2stltpush
_3(RuTPU)RU\TPU\pers\31502
701 1 _aVavilov
_bV. P.
_cSpecialist in the field of dosimetry and methodology of nondestructive testing (NDT)
_cDoctor of technical sciences (DSc), Professor of Tomsk Polytechnic University (TPU)
_f1949-
_gVladimir Platonovich
_2stltpush
_3(RuTPU)RU\TPU\pers\32161
701 1 _aChulkov
_bA. O.
_cspecialist in the field of non-destructive testing
_cEngineer of Tomsk Polytechnic University
_f1989-
_gArseniy Olegovich
_2stltpush
_3(RuTPU)RU\TPU\pers\32220
701 1 _aBurleigh
_bD.
_gDouglas
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа неразрушающего контроля и безопасности
_bЦентр промышленной томографии
_bНаучно-производственная лаборатория "Бетатронная томография крупногабаритных объектов"
_h7983
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_3(RuTPU)RU\TPU\col\23717
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа неразрушающего контроля и безопасности
_bЦентр промышленной томографии
_bНаучно-производственная лаборатория "Тепловой контроль"
_h7984
_2stltpush
_3(RuTPU)RU\TPU\col\23838
801 2 _aRU
_b63413507
_c20211109
_gRCR
856 4 _uhttps://doi.org/10.1016/j.ndteint.2021.102522
942 _cCF