scholarly journals Многопараметровый контроль многослойных структур импульсным вихретоковым методом

2019 ◽  
Vol 45 (15) ◽  
pp. 17
Author(s):  
Д.С. Малушин
Keyword(s):  
Aerospace Industry ◽  
Laminated Composite ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Magnetic Components ◽  
Pulsed Eddy Current ◽  
Laminated Composite Materials ◽  
Materials Used ◽  
Non Destructive

A novel multi-parameter pulsed eddy current technique has been developed. This solution allows separate quantitative determination of more than seven parameters of multilayer structures, containing magnetic components. Describes the applicability of this technique for non-destructive testing of low-conductive magnetic coatings and laminated composite materials, used in the aerospace industry.

scholarly journals Application of Non-Destructive Testing in Evaluating Reinforced Concrete Structural Elements in Buildings

2008 ◽  
Vol 31 (1) ◽  
pp. 83-87
Author(s):  
I.A. Rubaratuka ◽  
P. Ndumbaro
Keyword(s):  
Reinforced Concrete ◽  
Structural Elements ◽  
Non Destructive Testing ◽  
Testing Methods ◽  
Destructive Testing ◽  
Mobile Crane ◽  
Actual Strength ◽  
Materials Used ◽  
Non Destructive

Of recent a large number of existing reinforced concrete buildings have required reconstruction, renovation and improvement. This tendency poses a number of problems that have to be solved, the main one being to determine the actual strength condition of the structural components/elements of the building. It includes determination of the qualityof materials used, specification of the types and description of apparent faults and damages and extent of wear of the building. To undertake this evaluation, non – destructive testing methods are used. In this paper, applications of non –destructive testing methods to determine the strength state of reinforced concrete columns with corbels and to establishtheir structural strength so as to determine the capacity of a mobile crane to be installed is outlined.

Study of the residual imperfections using methods of probability theory

2021 ◽  
Vol 87 (9) ◽  
pp. 44-49
Author(s):  
D. A. Kuzmin
Keyword(s):  
Probability Theory ◽  
Generalized Equation ◽  
Structural Elements ◽  
Non Destructive Testing ◽  
Operational Control ◽  
Destructive Testing ◽  
Control Procedures ◽  
Non Destructive ◽  
A Current

Discontinuities in the products that occur during manufacture, mounting or upon operation can be missed during non-destructive testing which do not provide their complete detectability at a current level of the technology. Therefore, it is necessary to take into account that certain structural elements may have discontinuities of significant dimensions. We present the results of using the methods of probability theory in studying the residual imperfections that remains in the structure after non-destructive control and repair of the previously identified defects. We used the results of operational control of units carried out by ultrasonic and radiographic methods. We present a method for determining a multifactorial coefficient that takes into account the detectability of defects, the number of control procedures and the errors in the instrumentation and methodological support, as well as a generalized equation for the probability distribution of detecting discontinuities. The developed approach provides assessing of the level of damage to the studied objects, their classification proceeding from the quantitative data and determination of the values of postulated discontinuities for deterministic calculations. The results obtained can be used to improve the methods of monitoring NPP facilities.

scholarly journals Quantitative evaluation of crack depths and angles for pulsed eddy current non-destructive testing

2019 ◽  
Vol 102 ◽  
pp. 180-188 ◽  
Author(s):  
Faris Nafiah ◽  
Ali Sophian ◽  
Md Raisuddin Khan ◽  
Ilham Mukriz Zainal Abidin
Keyword(s):  
Quantitative Evaluation ◽  
Eddy Current ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Pulsed Eddy Current ◽  
Non Destructive

Standardisation of X-Ray Powder Diffraction Methods

2004 ◽  
Vol 443-444 ◽  
pp. 31-34
Author(s):  
Giovanni Berti ◽  
Rob Delhez ◽  
S. Norval ◽  
B. Peplinski ◽  
E. Tolle ◽  
...  
Keyword(s):  
Technical Committee ◽  
Non Destructive Testing ◽  
X Ray Diffraction ◽  
Destructive Testing ◽  
X Ray ◽  
Standard Documents ◽  
And Control ◽  
Non Destructive ◽  
Research Centres

This paper outlines the standardisation process for the XRPD method that is currently being considered by a Working Group (WG10) of Technical Committee 138 "Non-destructive Testing" of the European Committee for Standardisation CEN. Several Standard Documents are on the verge of being released. These documents concern the general principles of (X-ray) diffraction, its terminology, and the basic procedures applied. Another document concerns the instruments used and it offers procedures to characterise and control the performance of an X-ray diffractometer properly. It is intended to issue Standard Documents on specific methods, e.g. determination of residual stresses. In fact work is in progress on this subject. The Standard Documents can be used by industry, government organisations, and research centres with activities related to safety, health and the environment, as well as for educational purposes.

Cyclic vs. Static Loading Behaviour of Masonry Blocks: An Approach to Evaluate the Long-Term Behaviour

2010 ◽  
Vol 452-453 ◽  
pp. 129-132
Author(s):  
Paola Antonaci ◽  
Pietro G. Bocca ◽  
Davide Masera
Keyword(s):  
Fatigue Behaviour ◽  
Non Destructive Testing ◽  
Static Displacement ◽  
Destructive Testing ◽  
Testing Laboratory ◽  
Cyclic Displacement ◽  
Non Destructive ◽  
Compressive Tests

The paper presents the results of an experimental investigation conducted on bricks. Prism-shaped specimens were produced. Laboratory tests were carried out at the Non-Destructive Testing Laboratory of the Politecnico di Torino. They were subjected to static compressive tests for the determination of their mechanical properties and cyclic compressive tests for the analysis of their fatigue behaviour. The aim of this work is to apply a failure criterion based on the observation of the static and cyclic curves to estimate the fatigue life and the long-term behaviour of the brick. Subsequently, it will be possible to give a relation between the static-displacement and cyclic-displacement of the material tested.

Non Destructive Testing of Unfired Pressure Vessels

2005 ◽  
Author(s):  
Guy Baylac ◽  
Ian Roberrts ◽  
Erik Zeelenberg
Keyword(s):  
Pressure Vessels ◽  
Non Destructive Testing ◽  
European Standard ◽  
Destructive Testing ◽  
Acceptance Criteria ◽  
Equipment Industry ◽  
Non Destructive

This paper discusses the non destructive testing (NDT) of unfired pressure vessels made of ductile and tough steels, as contained in Part 5 of the European standard EN 13445:2002. The concept and use of testing groups along with “satisfactory experience” in welding are presented. Also the background and rationale for the determination of standards used for NDT methods, characterisation and acceptance criteria are discussed in detail. Benefits for the pressure equipment industry are emphasised.

Non-Destructive Testing of Glued Laminated Timber Beams with Use of Pilodyn 6J – Method of Spike

2016 ◽  
Vol 825 ◽  
pp. 23-26
Author(s):  
Pavel Klapálek ◽  
Lenka Melzerová
Keyword(s):  
Modulus Of Elasticity ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Glued Laminated Timber ◽  
Measurement Results ◽  
Non Destructive ◽  
Timber Beams ◽  
The Way

This article is focused on GLULAM (glued laminated timber) beams and determination of their properties by using non-destructive method. This text is mainly focused just on part of more complex research of glued laminated timber beams. This text is focused on non-destructive method, which is the method of spike that uses device called Pilodyn 6J for measurement. Results of this method are in form of Young ́s modulus of elasticity. This article will describe how the method of spike works, with basic description, describes the tested material and compare the results of testing. In the conclusion we discuss the results, make conclusions and describe the way of our further research of glued laminated timber beams.

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