Testing of magnetoactive composite under extreme compression

Mechanical Engineering Research Institute of the Russian Academy of Sciences, 4, Maly Kharitonyevsky Lane, 119334 Moscow, Russia

^* Corresponding author: minaev0804@ya.ru

Abstract

This article examines a sample of magnetoactive composite with ferromagnetic fillers. Magnetoactive composites, due to the uniqueness of their physico-mechanical characteristics, can find application in various areas of industrial production. Previous studies have demonstrated the potential for self-recovery of a magnetoactive material sample after the removal of extreme compression loads of 10 kN and 30 kN. The tested sample, with an elastic modulus not exceeding 20 kPa, showed the ability to self-recover, practically without destruction. In this test, the sample had elastic modulus parameters more than twice as high as in previous tests and was subjected to higher extreme loads up to 50 kN. Similar to previous tests, the sample is also evaluated for the possibility of restoring its shape. Compression force changes are established against the values of strain, ranging from zero to exceeding 90% of its initial deformation, on recorded compression diagrams of the sample presented for testing. A sharp increase in compression forces is observed at deformations exceeding 70% of its initial deformation. The tested sample, subjected to extreme loads of 50 kN, partially self-recovered and experienced partial damage.