Detection of Concrete Spalling Using Active Infrared Thermography

Autor:	Hisashi Tanaka, Nihei Tatsuya, Tottori Seiichi
Rok vydání:	2006
Předmět:	Void (astronomy) Materials science business.industry Mechanical Engineering Spall Finite element method law.invention Temperature gradient Halogen lamp law Thermography Forensic engineering Xenon arc lamp Composite material business Thermal energy
Zdroj:	Quarterly Report of RTRI. 47:138-144
ISSN:	1880-1765 0033-9008
DOI:	10.2219/rtriqr.47.138
Popis:	This article presents a method of infrared thermography for use in the detection of concrete spalling. This method, also known as the active infrared method, uses a xenon arc lamp and a halogen lamp in order to provide a temperature gradient. The method was found to have better control as well as the ability to accurately mimicking real temperature dispensation. In order to simulate spalling in their test model, researchers created an artificial void on the 10, 20, and 30 mm thick concrete plain plates to be analyzed. The data recovered from the tests was analyzed using a two-dimensional finite element method (FEM). Researchers found a significantly lower thermal energy (one third) in the simulated spalling than on normal plate, however were unable to demonstrate the efficacy of thermography using passive methods.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::836a5a925b17cc2e53df5b3056109a5f https://doi.org/10.2219/rtriqr.47.138 Zobrazit plný text záznamu