Spot weld analysis with 2D ultrasonic Arrays
نویسندگان
چکیده
منابع مشابه
Spot Weld Analysis With 2D Ultrasonic Arrays
This paper describes a threefold method of testing the performance of an array-based ultrasonic tool for nondestructive testing of spot welds. The tool is described in its capabilities, use, and advantages over existing counterparts. Performance testing for and the results from carrying out the testing are described. The three performance testing methods include 1) the use of calibrated samples...
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This paper describes a threefold method of testing the performance of an array-based ultrasonic tool for nondestructive testing of spot welds. The tool is described in its capabilities, use, and advantages over existing counterparts. Performance testing is not only described, but results from carrying out the testing are documented as well. The three performance testing methods include the use ...
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The present work seeks to determine the parameters for approval, through ultrasonic techniques, of spot welded joints of low carbon steel sheets. For such experience the mechanical behavior of a spotwelded joint was characterized under fatigue, in load cycles ranging from zero to 14 kN, on sheets of 1.5 mm thickness, joined by three spot welds of 7.5 mm of medium diameter, being the distance am...
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The anisotropic, heterogeneous and coarse granular structures of austenitic stainless steel welds may lead to important disturbances of the ultrasonic propagation : beam skewing and splitting, attenuation, backscattering and spurious echoes. Numerous studies were undertaken by EDF R&D and CEA for a few years to study these disturbances and to improve the ultrasonic NDT in nuclear applications. ...
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In this paper, we present LEARN++, a new algorithm that allows existing classifiers to learn incrementally from new data without forgetting previously acquired knowledge. LEARN++ is based on generating multiple classifiers, each trained with a different subset of the training data and then combining them to form an ensemble of classifiers using weighted majority voting. The fundamental contribu...
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ژورنال
عنوان ژورنال: Journal of Research of the National Institute of Standards and Technology
سال: 2004
ISSN: 1044-677X
DOI: 10.6028/jres.109.015