Tests for cyclic tensile loads of magnetically active composite elastomer

Mechanical Engineering Research Institute of the Russian Academy of Sciences, 4 Maly Kharitonyevsky Pereulok, 101990, Moscow, Russia

^* Corresponding author: minaev0804@ya.ru

Abstract

The ongoing research in the field of creating magnetically active elastic composite materials is largely related to the possibility of their use in various technical devices. One of the possible applications of the material being developed is to create the necessary deformation when it is stretched by exposing it to a forceful magnetic field. To do this, it is necessary to determine which force loads can deform the magnetically active elastic material created by a given amount. When studying this issue, it is necessary to establish the dependence of the specified deformation on the magnitude of the force loads on the samples of the tested material. These dependencies can be determined using an automated testing machine, which allows you to study the range of rheological characteristics of the material being created, including using multi-cycle test modes, in preset ranges. The advantage of the test method using multi- cycle modes is the possibility of constructing hysteresis dependences indicating the loss of elastic properties in the material when their macromolecules are ruptured. Using the example of two samples of the test material, the dependences of hysteresis losses in the considered cycles of various loads are shown. When testing the samples, load conditions were determined under which there are no hysteresis losses.