scholarly journals A combined three-dimensional digitisation and subsurface defect detection data using active infrared thermography

2016 ◽  
Author(s):  
M. Belkacemi ◽  
C. Stolz ◽  
A. Mathieu ◽  
G. Lemaitre ◽  
O. Aubreton
Keyword(s):  
Infrared Thermography ◽  
Defect Detection ◽  
Three Dimensional ◽  
Active Infrared Thermography ◽  
Subsurface Defect

Three-Dimensional Printed Subsurface Defect Detection by Active Thermography Data-Processing Algorithm

2021 ◽  
Author(s):  
Ézio Carvalho de Santana ◽  
Wellington Francisco da Silva ◽  
Marcella Grosso Lima ◽  
Gabriela Ribeiro Pereira ◽  
Douglas Bressan Riffel
Keyword(s):  
Data Processing ◽  
Defect Detection ◽  
Three Dimensional ◽  
Processing Algorithm ◽  
Active Thermography ◽  
Data Processing Algorithm ◽  
Subsurface Defect

Active Infrared Thermography for Defect Detection of Polyethylene Pipes

2014 ◽  
Vol 1044-1045 ◽  
pp. 700-703
Author(s):  
Zhi Bin Zhu ◽  
Xu Qiu ◽  
Shun Cong Zhong ◽  
Xi Bin Fu ◽  
Xiao Xiang Yang
Keyword(s):  
Finite Element ◽  
Infrared Thermography ◽  
Defect Detection ◽  
Infrared Imaging ◽  
Experimental System ◽  
Element Model ◽  
Electrical Heating ◽  
Thermal Excitation ◽  
Flux Boundary Condition ◽  
Active Infrared Thermography

We present defect detection of polyethylene (PE) pipes by using active infrared thermography technique. A finite element model was built to mimic the transient heat transfer in PE pipes, in which constant heat flux boundary condition was applied to the inner surface of the PE pipes. Various defects with different diameters and depths were simulated in PE pipes and they would affect the thermal distributions from which the relation between thermal images and defect sizes and locations would be established. An electrical heating bar, as the novel thermal excitation source, was employed in active infrared thermography experimental system. The finite element simulation results are well agreed with the one obtained from the infrared imaging experiments and it demonstrated that finite element numerical method can be an effective method to analyze infrared imaging. Furthermore, defects in heat fusion joints of PE pipes were fabricated and detected by the developed active infrared thermography. The experiment showed that active infrared thermography based on an electrical heating bar could provide a novel tool for nondestructive evaluation of PE pipes.

Sign in / Sign up

Export Citation Format

Share Document