Experimental Determination of Acceleration of Explosively Driven Metal by Photonic Doppler Velocimetry in the Process of Explosive Welding

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F18%3A39912479" target="_blank" >RIV/00216275:25310/18:39912479 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1002/prep.201700275" target="_blank" >http://dx.doi.org/10.1002/prep.201700275</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/prep.201700275" target="_blank" >10.1002/prep.201700275</a>

Result language

angličtina

Original language name

Experimental Determination of Acceleration of Explosively Driven Metal by Photonic Doppler Velocimetry in the Process of Explosive Welding

Original language description

Two important parameters reflect in the quality of the interface of two explosively welded metal plates - impact velocity and collision angle. Both parameters can be determined from the knowledge of velocity history of the accelerated surface. A suitable measurement methodology that would allow in-situ determination of the course of acceleration at a technological scale experiments is however not yet available. One of the emerging options enabling such measurements is Photonic Doppler Velocimetry (PDV). This paper focuses on the issues observed during measurement of metal plate acceleration in explosive welding using this technique. A well-known combination in which copper plate is accelerated by detonation and welded to a steel baseplate was chosen for small scale experiments. The methodology was further employed at a large scale technological tests were two different steel plates were joined by detonation. The PDV proved to be successful in determination of the entire velocity history and provides unprecedented insight into the welding process. The knowledge of the velocity time history enables optimization of the impact velocity and collision angle without having to modify the explosive composition. A methodology of velocity measurement of the entire velocity profile of accelerated plate and its collision velocity during metal welding was developed. In addition, we are proposing a new way of optimizing welding parameters based on the exact velocity and thus a collision angle calculation.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/TA02010923" target="_blank" >TA02010923: OPTIMEX - Optical measurement of explosions</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

PROPELLANTS EXPLOSIVES PYROTECHNICS

ISSN

0721-3115

e-ISSN

—

Volume of the periodical

43

Issue of the periodical within the volume

5

Country of publishing house

DE - GERMANY

Number of pages

9

Pages from-to

479-487

UT code for WoS article

000432030500007

EID of the result in the Scopus database

2-s2.0-85044675244