Deformation induced electromagnetic response of soft and hard PZT under impact loading

Kumar, Amit; Chauhan, Vishal Singh; Sharma, Sumeet K.; Kumar, Rajeev

doi:10.1080/00150193.2017.1328726

Cited by 22 publications

(3 citation statements)

References 54 publications

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“…Recently Sharma et al have reported the electromagnetic emission from lead-free and lead-based ferroelectric materials subjected to externally applied alternating electric field and impact loading, respectively [32,33]. Theoretical models for the electromagnetic emissions from metals, rock, ice and various other materials has been proposed earlier alongside the experimental studies [21,[34][35][36].…”

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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“…6. EMR has been observed to increase as the height of impact increases [84]. For the electromagnetic radiation (EMR) detection from the soft PZT (SP-5A) at low temperatures, the same setup was placed inside the environmental chamber and the weight was dropped from the varying height (Fig.…”

Section: Ceramicsmentioning

confidence: 99%

“…In simpler way these pulses can be understood in terms of polarization and repolarization processes induced by loading [77]. However, recent investigations of EMR from ferroelectric ceramics without subjecting them to plastic deformation (discussed in ''Electrical and electromagnetic effects in ionic crystals/materials'' section) have shown different phenomenon responsible for EMR emission [32,84]. Ferroelectric materials have spontaneous polarization due to the presence of electric dipoles which can respond to the external loading by the change in the dipole moment and result into the well-known direct and indirect effect [254,255].…”

Section: Ionic Crystals/materialsmentioning

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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Rock Burst Precursor Electromagnetic Radiation Signal Recognition Method and Early Warning Application Based on Recurrent Neural Networks

Wang

2021

Rock Mech Rock Eng

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Deformation induced electromagnetic response of soft and hard PZT under impact loading

Cited by 22 publications

References 54 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

Rock Burst Precursor Electromagnetic Radiation Signal Recognition Method and Early Warning Application Based on Recurrent Neural Networks

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