Dynamic Thermal Tomography of Composites: A Comparison of Reference and Reference-Free Approaches

Dynamic Thermal Tomography of Composites: A Comparison of Reference and Reference-Free Approaches

التفاصيل البيبلوغرافية
Parent link:	Journal of Nondestructive Evaluation Vol. 38, iss. 1.— 2018.— [2,13 p.]
المؤلف الرئيسي:	Vavilov V. P. Vladimir Platonovich
مؤلفون مشاركون:	Национальный исследовательский Томский политехнический университет Инженерная школа неразрушающего контроля и безопасности Центр промышленной томографии Научно-производственная лаборатория "Тепловой контроль", Национальный исследовательский Томский политехнический университет Школа базовой инженерной подготовки Отделение иностранных языков
مؤلفون آخرون:	Kuimova M. V. Marina Valerievna
الملخص:	Title screen Dynamic thermal tomography is a technique that allows the display of “slices” of solids by analyzing the evolution of surface temperature as a function of time. This paper presents the principles of one-sided thermal tomography using reference points and also introduces a technique of thermal tomography that does not require the use of reference point. The diffusion nature of heat conduction in solids causes lateral diffusion, which modifies and complicates the heat flow that is needed to detect defects. In the case of anisotropic composite materials the heat will diffuse more readily in one direction than another. Lateral diffusion can make it difficult to detect (visualize) deep defects, especially those located under shallower ones. Artifacts can be reduced by thresholding timegrams but this may hide small defects. The effectiveness of thermal tomography in detecting impact damage (cracks/delaminations) in composites has been confirmed by numerous experiments. Режим доступа: по договору с организацией-держателем ресурса
اللغة:	الإنجليزية
منشور في:	2018
الموضوعات:	электронный ресурс труды учёных ТПУ тепловые испытания ударные повреждения томография
الوصول للمادة أونلاين:	https://doi.org/10.1007/s10921-018-0540-y
التنسيق:	الكتروني فصل الكتاب
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=659008

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