A physical model for the intermittent electromagnetic radiation during plastic deformation of metals

Misra, A. K.; Singh, Rohit; Lal, S. P.

doi:10.1007/s00339-015-9437-0

Cited by 19 publications

(2 citation statements)

References 22 publications

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“…Misra (1975) reported the preliminary investigations of electromagnetic radiation (EMR) emission from metals [13]. Later this phenomenon was explored and reported by various authors [14][15][16][17][18][19][20][21][22][23]. Coal has been investigated widely for the electromagnetic emission phenomenon for monitoring the stress state in the coal mines [24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

A theoretical model for the electromagnetic radiation emission from hydrated cylindrical cement paste under impact loading

et al. 2018

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This paper presents the detection of the electromagnetic radiation (EMR) from the hydrated cement paste samples when impacted by dropping weight. Cylindrical cement samples cured for 28 days emit EMR in the range of 44 mV to 95 mV as the height of impact is varied from 6 cm to 21 cm. The EMR voltage increases linearly as the height of impact increases. This suggests the suitability of the EMR measurement for the structural health monitoring under dynamic loading conditions. A theoretical model has been presented to explain the occurrence of the EMR under impact. The ions present in the capillary pores of the hydrated cement paste lead to the formation of dipoles at the solid liquid interphase. When impact is applied the separation distance between the opposite charges of the dipoles undergoes transient variation causing the EMR. Theoretically calculated EMR voltages are in good agreement with the experimental results in nature as well as magnitude.

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Section: Introductionmentioning

confidence: 99%

A theoretical model for the electromagnetic radiation emission from hydrated cylindrical cement paste under impact loading

et al. 2018

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“…Later in early 1970s Misra et al presented the first reporting on the EMR emission from metals during plastic deformation and fracture. With the first publication of Misra in 1975 reporting the electromagnetic effects in metals [161] investigation of these emissions has gained impetus, and these have been explored extensively by his research group and other researchers as well [162][163][164][165][166][167][168][169][170][171]. Misra series before finally recording on storage oscilloscope.…”

Section: Electromagnetic Effects In Metals and Alloysmentioning

confidence: 99%

A review on deformation-induced electromagnetic radiation detection: history and current status of the technique

2020

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Development of the deformation monitoring techniques for the infrastructures so as to avoid catastrophic failure and resulting economic/human loss has remained a key interest of scientists and engineers. Among various deformation monitoring techniques utilized and explored by groups of researchers, electromagnetic radiation detection is one of the intriguing techniques which has remained popular in researchers’ community till today. Almost every type of material is being explored and studied by researchers for the electromagnetic emissions when subjected to external loading and/or failure. Experimental and theoretical investigations are demonstrating these emissions to be a suitable candidate for the deformation monitoring, as a failure predictor and to know about the complex phenomenon of fracture. This article presents extensive literature review and a rigorous discussion on the work done in the past several decades regarding the exploration of electromagnetic emissions from a wide variety of materials and the underlying physical mechanisms. Thus, this review is an attempt to highlight main findings, proposed physical mechanisms, prospective applications, future scope and challenges of the electromagnetic emission detection technique.

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The Influence of Notch-Width Ratio on Mechanical and Electromagnetic Radiation Parameters During Tensile Deformation in FCC Metals

Anand

Kumar

2022

Lecture Notes in Mechanical Engineering

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A physical model for the intermittent electromagnetic radiation during plastic deformation of metals

Cited by 19 publications

References 22 publications

A theoretical model for the electromagnetic radiation emission from hydrated cylindrical cement paste under impact loading

A theoretical model for the electromagnetic radiation emission from hydrated cylindrical cement paste under impact loading

A review on deformation-induced electromagnetic radiation detection: history and current status of the technique

The Influence of Notch-Width Ratio on Mechanical and Electromagnetic Radiation Parameters During Tensile Deformation in FCC Metals

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