Non destructive infra red testing

2007 ◽  
Vol 54 (2) ◽  
Keyword(s):  
Infra Red ◽  
Non Destructive

Infra-Red Thermography based Inspection of Hybrid Composite Laminates under Flexure Loading

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
R. Bhoominathan ◽  
P. Divyabarathi ◽  
R. Manimegalai ◽  
T. Nithya ◽  
S. Shanmugapriya
Keyword(s):  
Composite Laminates ◽  
Volume Fraction ◽  
Void Content ◽  
Destructive Testing ◽  
Flexural Loading ◽  
Infra Red ◽  
Before And After ◽  
Cfrp Composite ◽  
Structural Parts ◽  
Non Destructive

Generally, the aircraft structural parts are economically high in cost so the materials need to be inspected for defects or damages using various non-destructive testing (NDT) methods like ultrasonic, thermography and acoustic emission. The aim of this project is to characterize the defects in composite laminates before and after the flexural loading using infra-red thermography NDT method. GFRP and hybrid (GFRP+CFRP) composite laminates are fabricated with different orientation such as uni-directional, cross ply, anti-symmetric and angle ply and then tested under flexural loading according to ASTM D790 standard. The volume fraction of the fibre and matrix needs to be found out to know the void content and the mixing ratio of reinforcement and binder.

scholarly journals Infra Red Spectra of Different Species of Cultivated Oyster Mushrooms Possible Tool for Identifying Bioactive Compounds and Establishing Taxonomic Linkage

2020 ◽  
Vol 5 (2) ◽  
pp. 118-124 ◽  
Author(s):  
Bodhaditya Das ◽  
Jadab Rajkonwar ◽  
A. Jagannath ◽  
Prasanta Kumar Raul ◽  
Utsab Deb
Keyword(s):  
Bioactive Compounds ◽  
Control Measure ◽  
Mushroom Species ◽  
Phylogeny Analysis ◽  
Quality Control Measure ◽  
Infra Red ◽  
Mushroom Harvest ◽  
Oyster Mushrooms ◽  
User Friendly ◽  
Non Destructive

Mushrooms are macrofungi that serve as a vegetarian source of protein along with various bio-active molecules of primary health importance. The activity of the bio-active molecules range from antioxidant, immunomodulation, hepatoprotection. Cultivated oyster mushrooms are also rich in these components which may be estimated quantitatively by skill intensive ‘destructive’ chemical techniques. Infra Red spectroscopy provides a non-destructive user friendly technique to quickly assess the presence of bio-active compounds in mushroom species to be used as a quality control measure as this non-destructive tool can be used to segregate mushroom harvest according to availability of bioactive compounds. IR spectra based strain classification and taxa delimitation of mushroom samples are also attempted vis a vis DNA sequence based phylogeny analysis of the same, but no correlation is observed between the two types of phylogeny analysis.

scholarly journals Phase Lag Infra-red Thermal Examination (PLITE); A New Non-destructive Test Process

2007 ◽  
Author(s):  
J.M. McDonald ◽  
T.J. Lutz ◽  
M.A. Ulrickson ◽  
T.J. Tanaka ◽  
D.L. Youchison ◽  
...  
Keyword(s):  
Phase Lag ◽  
Destructive Test ◽  
Infra Red ◽  
Non Destructive ◽  
Test Process

Non-destructive near-infra-red analysis for the identification of dyes on textiles

2008 ◽  
Vol 113 (2) ◽  
pp. 51-56 ◽  
Author(s):  
Chi-Shi Chen ◽  
Chris W Brown ◽  
Martin J Bide
Keyword(s):  
Infra Red ◽  
Non Destructive

Microvia Non-Destructive Inspection Method

2009 ◽  
Author(s):  
Cholmin Choi ◽  
Abhijit Dasgupta
Keyword(s):  
Time Domain ◽  
Metal Layer ◽  
Experimental Methods ◽  
Time Domain Reflectometry ◽  
Reflow Process ◽  
Inspection Method ◽  
Infra Red ◽  
Inspection Techniques ◽  
Non Destructive ◽  
Poor Adhesion

In this paper, the effectiveness of two non-destructive inspection techniques were investigated for quality assessment of microvias in high-density PWBs. Manufactured PWBs can fail during the reflow process due to microvia quality issues such as thin metallization in the barrel or shoulder of microvia or poor adhesion between the microvias and the metal layer underneath. The two investigated non-destructive inspection techniques are Transient Infra-red Thermography (IRT) and Time Domain Reflectometry (TDR). This study develops experimental methods to obtain thermal signatures of microvias using IRT technique and RF impedance signatures of microvias using TDR technique. Numerical analysis methods are also developed in this study to quantify and interpret the obtained microvia signatures to validate the functionality of selected non-destructive microvia inspection techniques.

Flaw Detection in Composite Materials Using Infra-Red Thermography by the Method of External Heating

1996 ◽  
Vol 210 (5) ◽  
pp. 399-407 ◽  
Author(s):  
A G Dutton
Keyword(s):  
Flaw Detection ◽  
The Body ◽  
Test Results ◽  
Defect Depth ◽  
Conduction Model ◽  
Infra Red ◽  
Polyester Composite ◽  
Qualitative Nature ◽  
Qualitative Measure ◽  
Non Destructive

A non-destructive technique for the detection of air-filled voids and foreign bodies within glass/polyester composite material is described. The technique involves the use of infra-red thermography with an external radiative source to excite temperature differences at the surface of the body. A low-intensity heat source is used to avoid large overall temperature rises which might damage the composite and some care is taken to ensure a uniform heat distribution. Results are presented that show the detection of air-filled voids at depths up to 9 mm. A qualitative measure of defect depth can be derived from the test results. A one-dimensional heat conduction model is presented and shown to reproduce the qualitative nature of the measurements in terms of defect depth and type.

scholarly journals Fast, Accurate, and Reliable Detection of Damage in Aircraft Composites by Advanced Synergistic Infrared Thermography and Phased Array Techniques

2021 ◽  
Vol 11 (6) ◽  
pp. 2778
Author(s):  
Janardhan Padiyar M. ◽  
Luca Zanotti Fragonara ◽  
Ivan Petrunin ◽  
Joao Raposo ◽  
Antonios Tsourdos ◽  
...  
Keyword(s):  
Phased Array ◽  
Robotic Platform ◽  
Horizon 2020 ◽  
Research Initiative ◽  
Infra Red ◽  
Reliable Detection ◽  
Phased Array Techniques ◽  
Aircraft Composites ◽  
Non Destructive ◽  
Evaluation Techniques

This paper presents an advanced methodology for the detection of damage in aircraft composite materials based on the sensor fusion of two image-based non-destructive evaluation techniques. Both of the techniques, phased-array ultrasonics and infra-red thermography, are benchmarked on an aircraft-grade painted composite material skin panel with stringers. The sensors systems for carrying out the inspections have been developed and miniaturized for being integrated on a vortex-robotic platform inspector, in the framework of a larger research initiative, the Horizon-2020 ‘CompInnova’ project.

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