songzhanping
- Professor
- Supervisor of Doctorate Candidates
- Supervisor of Master's Candidates
- Name (Pinyin):songzhanping
- School/Department:土木工程学院
- Education Level:Postgraduate (Doctoral)
- Business Address:土木工程学院
- Contact Information:邮箱 : songzhpyt@xauat.edu.cn
- Degree:Doctoral degree
- Professional Title:Professor
- Status:Employed
- Alma Mater:西安理工大学
- Discipline:Structural Engineering
Engineering
Other Contact Information
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- Paper Publications
循环冲击作用下风化红砂岩动态响应特性
Release time:2024-08-09 Hits:
- Affiliation of Author(s):土木工程学院
- Journal:岩石力学与工程学报
- Key Words:岩石力学;风化红砂岩;应力波;动态压缩强度;能量利用率;
- Abstract:针对循环冲击作用下风化红砂岩的动态响应特性,利用动静组合加载装置进行不同轴压、不同冲击荷载下的循环冲击试验,分析轴压和冲击荷载对其力学特性及能量耗散的影响。结果表明:保证入射波相同的情况下,透射波波峰随循环冲击次数的增加而增大,且透射波波峰存在峰值点;反射波呈"双峰",表现较为明显的2个峰值点和1个谷值点,且2峰1谷的到达时刻基本相同;当轴压一定时,随平均应变率增大,动态压缩强度逐渐减小,这也表明风化红砂岩存在较好的应变率效应;试样的能量利用率与冲击荷载和轴压之间存在负相关关系,即当冲击荷载和轴压处于较低水平时,试样的能量利用率较高;随轴压增大,能量利用率峰值逐渐减小,且不同冲击荷载作用下极大值点均出现在轴压为0 MPa处,其最大值为24%。
- Co-author:杨建永
- First Author:songzhanping
- Indexed by:Journal paper
- Correspondence Author:王彤
- Discipline:Engineering
- Volume:中文核心期刊:2772-2778,7
- ISSN No.:1000-6915
- Translation or Not:no
- Date of Publication:2019-04-15