Archive
SCIENTIFIC RESEARCH-2025 SCIENTIFIC RESEARCH 2024 SCIENTIFIC RESEARCH 2023 SCIENTIFIC RESEARCH 2022 SCIENTIFIC RESEARCH 2021

https://doi.org/10.36719/2789-6919/43/122-129

Tahir Mammadov

Ganja State University

PhD in mathematics

https://orcid.org/0009-0002-9546-3683

tahir.mammadov@gdu.edu.az

Elchin Javadov

Ganja State University

PhD in technique

https://orcid.org/0009-0002-8868-9617

elcin.cavadov@gdu.edu.az 

Tarana Verdiyeva

Ganja State University

PhD in technique

https://orcid.org/0009-0009-8595-2644

tarana.verdiyeva@gdu.edu.az

Gulchin Garayeva

Ganja State University

PhD student

https://orcid.org/0009-0005-8059-7453

gulcin.qarayeva@gdu.edu.az

 

Problem on Vinkling of Viscoelastic Thread During Normal

Blowing by a Wedge

 

Abstract

The article investigates the problem of transverse impact of a linear viscoelastic rod with a wedge. The problem is studied in a regime greater than the speed of sound, and the state of tension of the rod, its state before and after breaking, are also studied. If the viscoelastic rod breaks at the point of impact after impact, the rod wrinkle along the surface of the striking object, that is, it is clarified that the viscoelastic rod is in the form of a wrinkle in the region from the point of breakage to the point of inflection.

Studies have shown that the speed of the “wrinkle” front of a viscoelastic thread is less than the speed of the “wrinkle” front of a corresponding linear elastic thread. This means that the length of the “wrinkle” region in a linear viscoelastic thread is greater than the length of the “wrinkle” region in a corresponding linear elastic thread. It has also been determined that the speed of a sharp shear wave in a viscoelastic thread is less than the speed of a sharp shear wave in a linear elastic thread. That is, the viscosity property slows down the speed of the wave. An analytical solution to the problem is found for the case where a “wrinkle” appears on the sharp shear wave front. Here, the issue of the formation of new regions as a result of the meeting of elastic waves, the impact of the elastic wave with the edge of the impacting wedge, and the meeting of the elastic wave with the smoothing-wrinkle boundary was also studied.

Keywords: wedge, break, flexible, thread, cross floro, supersonic, subsonic


Views: 250