Study on Dynamic Mechanical Properties of Coal and Rock Based on ABAQUS Simulation
QIAN Jie
HAN Jing
HU Ming
Abstract：On the basis of ABAQUS explicit solution,split-Hopkinson tension bar(SHTB) model is built up to investigate the mechanical properties of coal and rock under dynamic tensile impact loading.Thus,the constitutive model of Z-W-T is selected and improved to research the stress-strain relation under high strain rate.The results show that the SHTB system established in this numerical simulation is able to realize a steady strain-rate loading.Besides,the improved constitutive model describes its mechan ical behavior well.The strain-rate effect and strain hardening effect is obvious in coal's dynamic tension.
Keywords：coal and rockdynamic tensilesplit-Hopkinson tension barmechanical propertiesstress-strain relationship
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 20-22 )