scholarly journals Neutron Imaging: A Non-Destructive Testing Method to Investigate Canned Exhaust After-Treatment System Components for the Three Dimensional Soot, Ash, Urea and Coating Distributions

2016 ◽  
Author(s):  
Christian Gruenzweig ◽  
David Mannes ◽  
Florian Schmid ◽  
Rob Rule
Keyword(s):  
Three Dimensional ◽  
Neutron Imaging ◽  
Treatment System ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Testing Method ◽  
System Components ◽  
Non Destructive ◽  
Exhaust After Treatment

X-Ray Microtomography of Microcellular Polymers

2000 ◽  
Author(s):  
Ryszard Pyrz
Keyword(s):  
Three Dimensional ◽  
Stress And Strain ◽  
Geometrical Parameters ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
X Ray ◽  
Testing Method ◽  
Measuring Techniques ◽  
Measured Stress ◽  
Non Destructive

Abstract Among modern measuring techniques, which are designed to reconstruct and to measure three-dimensional aspects of microstructure on mesoscopic scale lengths, the X-ray microtomography seems to be very well suited to yield this information. Generally, X-ray microtomography is the X-ray based non-destructive testing method that was first developed for medical purposes and only recently applied to materials characterization. Monitoring materials’ microstructure using X-ray microtomography allows reconstructing a three-dimensional image of the specimen from non-destructive, serial sections and processing it in order to visualize and measure three-dimensional features. Thus valuable information can be deduced from the correlation of measured stress and strain values with a number of internal geometrical parameters which cannot be measured at the specimen surface.

Acoustic and Photoacoustic Inspection of Through-Silicon Vias in the GHz-Frequency Band

2017 ◽  
Author(s):  
Sebastian Brand ◽  
Michael Kögel ◽  
Frank Altmann ◽  
Ingrid DeWolf ◽  
Ahmad Khaled ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Frequency Band ◽  
Process Development ◽  
Three Dimensional ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Vertical Interconnection ◽  
Testing Techniques ◽  
Silicon Vias ◽  
Non Destructive

Abstract Through Silicon Via (TSV) is the most promising technology for vertical interconnection in novel three-dimensional chip architectures. Reliability and quality assessment necessary for process development and manufacturing require appropriate non-destructive testing techniques to detect cracks and delamination defects with sufficient penetration and imaging capabilities. The current paper presents the application of two acoustically based methods operating in the GHz-frequency band for the assessment of the integrity of TSV structures.

INSPECTION BY ULTRASONIC TOMOGRAPHY (UT) LEADING TREND IN WELDING JOINT MONITORING

2015 ◽  
Vol 77 (17) ◽  
Author(s):  
Noor Amizan Abd. Rahman ◽  
Ruzairi Abdul Rahim ◽  
Nor Muzakkir Nor Ayob ◽  
Jaysuman Pusppanathan ◽  
Fazlul Rahman Mohd Yunus ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Image Resolution ◽  
Ultrasonic Tomography ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Steel Pipes ◽  
Imaging Result ◽  
Welding Steel ◽  
Joint Monitoring ◽  
Non Destructive

Welding work is a connection process between the structure and the materials. This process is used in the construction, maintenance and repair especially mechanical engineering. This study discusses the type of welding used in the industry, mainly involving the pipeline welds. On-demand need to every work process when finishing weld requires quality tests to ensure compliance to the standards required. Monitoring through the display image has long been used in Non-Destructive Testing (NDT). Various methods of monitoring used in NDT focused on Ultrasonic Tomography (UT) as a method used in NDT and as an option for the future. Previous imaging result was in two-dimensional (2D) and then upgraded to a three-dimensional image (3D). Besides, there is potential of 3D imaging beyond the existing limits in terms of size, material thickness, especially for welding steel pipes. Achievement through research of existing pipe size so far outside diameter of 200 mm and a thickness of 5.8 mm should be limited in view of the obstacles to enhanced image resolution is less effective when compared to other tomography methods.

Application of Gradient Based IR Thermography to the GRP Structures Inspection

2011 ◽  
Vol 488-489 ◽  
pp. 682-685 ◽  
Author(s):  
Lovre Krstulović-Opara ◽  
Endri Garafulić ◽  
Branko Klarin ◽  
Željko Domazet
Keyword(s):  
Pulse Heating ◽  
Non Destructive Testing ◽  
Ir Thermography ◽  
Destructive Testing ◽  
Heat Flows ◽  
Testing Method ◽  
Reinforced Polymer ◽  
Gradient Based ◽  
Non Destructive ◽  
Gradient Approach

The article presents application of non destructive testing method based on the pulse heating infrared thermography used to detect material anomalies for the case of glass reinforced polymer structures. The goal of presented research, based on the thermal gradient approach, is to establish the procedure capable of filtering out anomalies from other thermal influences caused by thermal reflections of surrounding objects, geometry influences and heat flows for observed object.

A New Non-destructive Testing Method Applied to Clinching

2021 ◽  
pp. 1461-1468
Author(s):  
Rémi Lafarge ◽  
Alexander Wolf ◽  
Christina Guilleaume ◽  
Alexander Brosius
Keyword(s):  
Non Destructive Testing ◽  
Destructive Testing ◽  
Testing Method ◽  
Non Destructive

A Non-Destructive Testing Method and Analysis for Air Pressure Distribution in the Stacks of Building Drainage Systems

2008 ◽  
Author(s):  
Cheng-Li Cheng ◽  
Wan-Ju Liao ◽  
Kuen-Chi He ◽  
Chia-Ju Yen
Keyword(s):  
Pressure Fluctuation ◽  
Drainage System ◽  
Field Testing ◽  
Air Pressure ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Drainage Systems ◽  
Existing Building ◽  
Testing Method ◽  
Non Destructive

A drainage system is one of the most essential facilities in building service engineering. Unfortunately relevant technology used today to analyze it was developed decades ago. This research investigated the case of existing building drainage systems in Taiwan, including our previous studies. The purpose of this paper is the development of a non-destructive testing method of air pressure fluctuation in a stacked building drainage system using field observation and experimental study of stack fluid mechanisms. A portable testing device is developed to execute field testing in existing drainage systems to determine air pressure fluctuation in the stacks of buildings. Meanwhile, the Fourier Transform Process is adopted in this paper to analyze the power spectrum of air pressure fluctuation in a drainage stack and to verify the previous theoretical study. Validation obtained from case-studies can be used to confirm the practicality of this portable and non-destructive testing method. As a result, the proposed testing method can be applied to the diagnosis of existing building drainage systems and improve the design of a drainage system in an existing housing complex.

Sign in / Sign up

Export Citation Format

Share Document