Experimental study on the relationship between the strain and metal magnetic memory field of steel beams

2018 ◽  
Vol 60 (7) ◽  
pp. 380-386
Author(s):  
Sanqing Su ◽  
Shuchun Yi ◽  
Wei Wang ◽  
Xuran Zhao ◽  
Haojiang Sun ◽  
...  
Keyword(s):  
Experimental Study ◽  
Steel Beams ◽  
Magnetic Memory ◽  
Metal Magnetic Memory ◽  
The Relationship

scholarly journals РАЗВИТИЕ МЕТОДА МАГНИТНОЙ ПАМЯТИ МЕТАЛЛОВ ДЛЯ ОПРЕДЕЛЕНИЯ ОСТАТОЧНЫХ НАПРЯЖЕНИЙ ПРИ ПРОИЗВОДСТВЕ ТРУБ БОЛЬШОГО ДИАМЕТРА

SWorldJournal ◽  
2018 ◽  
pp. 6-12
Author(s):  
Святослав Савкин
Keyword(s):  
Experimental Study ◽  
Residual Stresses ◽  
Magnetic Memory ◽  
Metal Magnetic Memory ◽  
Metal Magnetic Memory Method

The article proposes the use of the metal magnetic memory method for the purpose of detecting and measuring residual stresses in welded seams and heat-affected zones of longitudinal welded pipes. The experimental study was divided into the following stage

Analysis on Test Method of Metal Magnetic Memory Mechanism of Ferromagnetic Materials Based Plastic Deformation

2012 ◽  
Vol 476-478 ◽  
pp. 2577-2581
Author(s):  
Rui Bin Gou ◽  
Yi Liang Zhang
Keyword(s):  
Plastic Deformation ◽  
Strain Measurement ◽  
Direct Evidence ◽  
Test Method ◽  
Magnetic Memory ◽  
Metal Magnetic Memory ◽  
Occurrence Time ◽  
Deformation Strain ◽  
Memory Mechanism ◽  
The Relationship

A new test method of metal magnetic memory (MMM) was designed and was applied to study the relationship between MMM signals distortion and uneven plastic deformation so as to obtain the direct evidence of the result that MMM signals change unevenly causing by the unevenly plastic deformation in tensile test. Macro magnetic memory measurement were done to capture the occurrence time and position of MMM signals’ distortion during the period of plastic deformation, strain measurement were done before each MMM measurement and micro slip lines were observed after each time when MMM signals were measured to capture the occurrence time and position of plastic deformation. Then direct evidence can be obtained by compared the consistency of the time and positions. Preliminary tests were done to prove the rationality and feasibility of the new test method. The results show that the evidence can be obtained effectively and change law of MMM signals were reproduced by this new test method.

MMM Identifying Damage for Recycled Pumping Rod Base on SVM

2013 ◽  
Vol 401-403 ◽  
pp. 1251-1254
Author(s):  
Hai Yan Xing ◽  
Ya Tong Han ◽  
Ping Qin ◽  
Chang Hai Liu
Keyword(s):  
Mechanical Effect ◽  
Classification Model ◽  
Support Vector ◽  
Magnetic Memory ◽  
Metal Magnetic Memory ◽  
Damage Classification ◽  
Recycling Economy ◽  
Multi Level ◽  
Multi Classification ◽  
The Relationship

Remanufacturing is an important way to develop recycling economy. However, the quality reliability testing is a bottleneck for the recycled product. Metal Magnetic Memory (MMM) technology is a valid method for early damage testing based on the magneto-mechanical effect. This paper aims at quantitative identifying damage for the recycled pumping rod（RPR）. The MMM rules of RPR damage are found through fatigue experiments. By using four-dimensional MMM parameter vectors, that is, peek-peek value，differential gradient，integral gradient and energy, are marked the damages. Furthermore，a multi-level damage classification model has been established base on optimal multi-classification algorithm of support vector machine (SVM) for RPR. The relationship is given between the damage degrees and MMM signals, which provides a theoretical basis and engineering tool of RPR reliability evaluation.

scholarly journals First-principles caculation and experimental study of metal magnetic memory effects

2013 ◽  
Vol 62 (8) ◽  
pp. 086201
Author(s):  
Yang Li-Jian ◽  
Liu Bin ◽  
Gao Song-Wei ◽  
Chen Li-Jia
Keyword(s):  
Experimental Study ◽  
First Principles ◽  
Memory Effects ◽  
Magnetic Memory ◽  
Metal Magnetic Memory

scholarly journals РАЗВИТИЕ МЕТОДА МАГНИТНОЙ ПАМЯТИ МЕТАЛЛОВ ДЛЯ ОПРЕДЕЛЕНИЯ ОСТАТОЧНЫХ НАПРЯЖЕНИЙ ПРИ ПРОИЗВОДСТВЕ ТРУБ БОЛЬШОГО ДИАМЕТРА

SWorldJournal ◽  
2018 ◽  
pp. 6-12
Author(s):  
Святослав Савкин
Keyword(s):  
Experimental Study ◽  
Residual Stresses ◽  
Magnetic Memory ◽  
Metal Magnetic Memory ◽  
Metal Magnetic Memory Method

The article proposes the use of the metal magnetic memory method for the purpose of detecting and measuring residual stresses in welded seams and heat-affected zones of longitudinal welded pipes. The experimental study was divided into the following stage

Experimental Study on Corrosion of Unstressed Steel Strand based on Metal Magnetic Memory

2019 ◽  
Vol 23 (3) ◽  
pp. 1320-1329 ◽  
Author(s):  
Runchuan Xia ◽  
Jianting Zhou ◽  
Hong Zhang ◽  
Daoliang Zhou ◽  
Zeyu Zhang
Keyword(s):  
Experimental Study ◽  
Magnetic Memory ◽  
Metal Magnetic Memory ◽  
Steel Strand
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