مقاله انگليسي در مورد تست غير مخرب NDT همراه با ترجمه

mehrce

کاربر فعال مهندسی عمران ,
کاربر ممتاز
اين مقاله در مورد تست غير مخرب است ،همراه با ترجمه آن كه براي درس زبان تخصصي بسيار مفيد ميباشد. براي دانلود خود مقاله و ترجمه آن روي لينك زير كليك كنيد.

http://www.mehrce.blogfa.com/post-111.aspx


Acoustic Emission: a Modern and Common NDT Method to Estimate Industrial Facilities
[FONT=arial, helvetica, sans-serif]Gerald LACKNER, Gert SCHAURITSCH, Peter TSCHELIESNIG

[FONT=arial, helvetica, sans-serif]TÜV Austria, Vienna, Austria[/FONT]​
[/FONT]
[FONT=arial, helvetica, sans-serif]Abstract. [/FONT]​
[FONT=arial, helvetica, sans-serif]Particularly with regard to the effort of the industry to reduce the shut
[FONT=arial, helvetica, sans-serif]down time of industrial facilities, the desire for a practicable and economic NDT[/FONT]
[FONT=arial, helvetica, sans-serif]method for periodic inspection becomes more and more interest. In the last few[/FONT]
[FONT=arial, helvetica, sans-serif]years, the acoustic emission (AE) method achieved to fulfil this requirement. In[/FONT]
[FONT=arial, helvetica, sans-serif]addition to the enormous development on hard- and software-components for AE[/FONT]
[FONT=arial, helvetica, sans-serif]systems in the last years, the increase of practical experiences and knowledge leads[/FONT]
[FONT=arial, helvetica, sans-serif]to a wide range of applications for this test method in Europe and worldwide. On the[/FONT]
[FONT=arial, helvetica, sans-serif]other hand, the implementation of AE in the European standardisation assured a[/FONT]
[FONT=arial, helvetica, sans-serif]high quality of certified test personnel. Parallel to this, the evolution of product and[/FONT]
[FONT=arial, helvetica, sans-serif]process standards raised the acceptance of AE for industrial application. In many[/FONT]
[FONT=arial, helvetica, sans-serif]European countries, for example in Austria, the AE is settled in the national law for[/FONT]
[FONT=arial, helvetica, sans-serif]the periodic inspection of several types of storage and pressure vessels as well as[/FONT]
[FONT=arial, helvetica, sans-serif]piping systems.[/FONT]
[FONT=arial, helvetica, sans-serif]Amongst other, AE is able to detect and locate material defects, corrosion[/FONT]
[FONT=arial, helvetica, sans-serif]and leakages with a high sensitivity and accuracy and enfolded usually the overall[/FONT]
[FONT=arial, helvetica, sans-serif]shape of the tested structure. Due to this property, AE is particularly suitable as a[/FONT]
[FONT=arial, helvetica, sans-serif]test method for large structures. In the practice, the verification of suspect places[/FONT]
[FONT=arial, helvetica, sans-serif]detected by AE, will be done with other NDT methods (visual inspection, ultrasonic,[/FONT]
[FONT=arial, helvetica, sans-serif]radiographic a.s.o.). Together with the interpretation of the AE results, an accurate[/FONT]
[FONT=arial, helvetica, sans-serif]conclusion about the actual condition of the structure will be possible.[/FONT]
[FONT=arial, helvetica, sans-serif]The presentation describes the current situation of AE from the Austrian[/FONT]
[FONT=arial, helvetica, sans-serif]point of view and explains the interaction between different NDT methods based on[/FONT]
[FONT=arial, helvetica, sans-serif]the results of some practical applications[/FONT]

[/FONT]
 

mehrce

کاربر فعال مهندسی عمران ,
کاربر ممتاز
اين مقاله نیز در مورد تست غير مخرب است ،همراه با ترجمه آن كه براي درس زبان تخصصي بسيار مفيد ميباشد. براي دانلود خود مقاله و ترجمه آن روي لينك هاي زير كليك كنيد.

http://www.mehrce.blogfa.com/post-112.aspx

An NDT technique for composite structures using visualized Lamb-wave propagation
S. Yashiro , J. Takatsubo and N. Toyama
aGraduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577, Japan bResearch Institute of Instrumentation Frontier, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan

Received 31 October 2006;
revised 23 March 2007;
accepted 4 April 2007.
Available online 14 April 2007.
Abstract
This study proposes a non-destructive testing ( NDT) technique that visualizes the propagation of ultrasonic waves in solids, including composite laminates. This technique provides a moving diagram of traveling waves through the use of a pulsed laser that scans a test piece. A non-contact scan by the pulsed laser for ultrasound generation with reception at a fixed point enables us to inspect an arbitrarily shaped object and also facilitates easy operation of the measurement system. We applied the proposed technique to the inspection of CFRP laminates and successfully visualized the wave scattering due to impact-induced delamination as well as the propagation of the S0 and A0 Lamb modes. We also addressed disbonding detection in a composite skin-stringer structure and concluded that the reliable detection of damage and the advantages of the proposed technique are applicable to inspections of composite structures​
 

dynasty

عضو جدید
اين مقاله در مورد تست غير مخرب است ،همراه با ترجمه آن كه براي درس زبان تخصصي بسيار مفيد ميباشد. براي دانلود خود مقاله و ترجمه آن روي لينك زير كليك كنيد.

http://www.mehrce.blogfa.com/post-111.aspx


Acoustic Emission: a Modern and Common NDT Method to Estimate Industrial Facilities
Gerald LACKNER, Gert SCHAURITSCH, Peter TSCHELIESNIG
TÜV Austria, Vienna, Austria
Abstract.
Particularly with regard to the effort of the industry to reduce the shut
down time of industrial facilities, the desire for a practicable and economic NDT
method for periodic inspection becomes more and more interest. In the last few
years, the acoustic emission (AE) method achieved to fulfil this requirement. In
addition to the enormous development on hard- and software-components for AE
systems in the last years, the increase of practical experiences and knowledge leads
to a wide range of applications for this test method in Europe and worldwide. On the
other hand, the implementation of AE in the European standardisation assured a
high quality of certified test personnel. Parallel to this, the evolution of product and
process standards raised the acceptance of AE for industrial application. In many
European countries, for example in Austria, the AE is settled in the national law for
the periodic inspection of several types of storage and pressure vessels as well as
piping systems.
Amongst other, AE is able to detect and locate material defects, corrosion
and leakages with a high sensitivity and accuracy and enfolded usually the overall
shape of the tested structure. Due to this property, AE is particularly suitable as a
test method for large structures. In the practice, the verification of suspect places
detected by AE, will be done with other NDT methods (visual inspection, ultrasonic,
radiographic a.s.o.). Together with the interpretation of the AE results, an accurate
conclusion about the actual condition of the structure will be possible.
The presentation describes the current situation of AE from the Austrian
point of view and explains the interaction between different NDT methods based on
the results of some practical applications


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