煤矿安全2017，Vol.48Issue(8)：20-22,3.DOI:10.13347/j.cnki.mkaq.2017.08.006
基于ABAQUS的煤岩动态拉伸力学特性研究
Study on Dynamic Mechanical Properties of Coal and Rock Based on ABAQUS Simulation
摘要
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.关键词
煤岩/动态拉伸/霍普金森拉杆/力学特性/应力应变关系Key words
coal and rock/dynamic tensile/split-Hopkinson tension bar/mechanical properties/stress-strain relationship分类
矿业与冶金引用本文复制引用
钱杰,韩靖,胡鸣..基于ABAQUS的煤岩动态拉伸力学特性研究[J].煤矿安全,2017,48(8):20-22,3.基金项目
国家自然科学基金资助项目(11472007,51474010) （11472007,51474010）
安徽省高校优秀青年人才支持计划资助项目(ZY285) （ZY285）
