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Electrical Fracture Diagnostics for Metal Bodies in a Gas Flow

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Abstract

New results of studying the electrical aspects of metal body fracture in a gas flow are obtained. The basis of the investigations and the diagnostic method developed is a fundamentally new effect discovered by the authors: most of the microparticles formed when metal specimens (rods) fracture have the same (positive) electric charge. When the specimen is immersed in a gas flow, the charged particles formed are carried out by the flow into the ambient space and the electric field generated by the particles can be recorded by special probe-antennas. The electric signals produced by fracturing rods made of different metals immersed in a high-temperature jet of combustion products are measured. An approximate theoretical dependence of the total charge on the particles formed as a result of fracture on the strength characteristics of the rod material is obtained.

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REFERENCES

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Authors
  1. A. B. Vatazhin
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  2. D. A. Golentsov
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  3. V. A. Likhter
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Vatazhin, A.B., Golentsov, D.A. & Likhter, V.A. Electrical Fracture Diagnostics for Metal Bodies in a Gas Flow. Fluid Dynamics 38, 69–77 (2003). https://doi.org/10.1023/A:1023339012545

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  • DOI: https://doi.org/10.1023/A:1023339012545

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