نتایج جستجو برای: none destructive test

تعداد نتایج: 1051522  

Journal: :BMJ 2007

2010
Ying Shi William Q. Meeker

Accelerated destructive degradation tests (ADDTs) are widely used in manufacturing industries to obtain timely product reliability information, especially in applications where few or no failures are expected under use conditions in tests of practical length. An ADDT plan specifies the test conditions of accelerating variables, running time, and the corresponding allocation of test units to eac...

2009
L. Rosado T. Santos M. Piedade Pedro M. Ramos P. Vilaça

− In this paper a new non-destructive testing (NDT) system focusing on micro size superficial defects in metals is presented. The innovative system is composed by a new type of eddy currents probe, electronic devices for signal generation, conditioning and conversion, automated mechanized scanning and analysis software. The key original aspect of this system is the new type of eddy currents pro...

2015
Chin-Wen Chen

In the construction industry, non-destructive testing (NDT) methods are gaining more popularity for their ability to examine the in-situ component properties without damaging the structure. One of the most common NDTs for measuring the concrete compressive strength on site is the Rebound Hammer Test. Using the rebound value obtained from the test hammer, the concrete compressive strength can be...

2004
M. K. Felisberto

Radiographic inspection is a reliable non-destructive test, widely used for integrity evaluation of structures and equipments. Nowadays, high quality images with very accurate resolutions have been supported by modern digital radiographic systems. However, the image analysis for internal defect detection and geometric characterization is still a not totally automated task. The main reason is th...

ژورنال: تحقیقات موتور 2018
Abbasi, M., Javaheri, M., Riazi, S. M.,

In this paper, a non-destructive eddy current test system was designed to evaluate the surface hardness of the carbonitrided steel parts. For this purpose, various samples of the tappet were used after the surface hardening and grinding operations as control samples and, if necessary, were subjected to destructive and non-destructive tests. Microstructural studies were performed with a microsco...

Bekrani, M. ,

One of the novel ultrasonic phased array based scanning methods for ultrasonic imaging in non-destructive test is total focusing method (TFM). This method employs maximum available information of the phased array elements and leads to an improved defect detection accuracy compared to conventional scanning methods. Despite its high detection accuracy, TFM behaves weak in distinguishing the real ...

2004
Markus Krüger Christian U. Grosse

Nowadays sustainability for both old and new buildings becomes more and more important. Therefore non-destructive test methods are of high interest. Non-destructive test methods are used for quality control of construction materials, inspection and analysis of materials or structures and are used for continuous monitoring of large constructions. A multitude of characteristic values of building ...

Journal: :Critical Times 2019

Journal: :Integrative Cancer Science and Therapeutics 2016

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