Open AccessИмпульсное сжатие и растяжение эпоксидной смолы при ударно-волновом воздействии
Author(s) -
В.М. Мочалова,
А.В. Уткин,
А.В. Павленко,
С.Н. Малюгина,
С.С. Мокрушин
Publication year - 2019
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2019.01.46973.122-18
Subject(s) - spall , materials science , shock wave , epoxy , tension (geology) , shock (circulatory) , relaxation (psychology) , shock front , composite material , strain rate , laser , optics , mechanics , physics , compression (physics) , medicine , social psychology , psychology
AbstractThe shock-wave properties of ED-10 epoxy resin have been studied using VISAR and PDV multiple-channel laser interferometers. The Hugoniot of epoxy resin and pressure dependence of sound speed has been obtained and it has been shown that the structure of a shock-wave front corresponds to the model of a Maxwell viscous-elastic body with a typical relaxation time of tangential stresses of 0.3 μs. The spall strength has been measured and its dependence on the strain rate in a sample upon pulse tension has been determined.