干旱区生态环境知识资源中心(Arid): 沙漠砂混凝土动态力学性能实验研究

Arid

	沙漠砂混凝土动态力学性能实验研究
其他题名	Experimental Study of Dynamic Mechanical Properties of Desert Sand Concrete
	马菊荣; 刘海峰; 杨维武
来源期刊	实验力学
ISSN	1001-4888
出版年	2015
卷号	30 期号:4 页码:491-498
中文摘要	采用直锥变截面式Phi74mm分离式霍普金森压杆,对不同替代率沙漠砂混凝土进行冲击压缩实验,得到了不同替代率沙漠砂混凝土在不同应变率下的应力应变曲线。分析应变率对沙漠砂混凝土峰值应力、峰值应变和比能量影响,揭示了沙漠砂替代率对沙漠砂混凝土峰值应力影响规律,并对沙漠砂混凝土动态破坏模式进行研究。研究表明:随着应变率增加,沙漠砂混凝土峰值应力、强度增强因子、比能量和峰值应变逐渐增大;在同一应变率下,随着替代率增加,沙漠砂混凝土峰值应力逐渐减小。本文研究结果可为沙漠砂在工程中的应用提供指导和借鉴。
英文摘要	Straight cone variable cross section split Hopkinson pressure bar (SHPB) with 74mm diameter was adopted to study the dynamic mechanical properties of desert sand concrete with different desert sand substitution ratios. Stress-strain curves of desert sand concrete with different desert sand substitution ratios and under various strain rates were obtained. The influence of strain rate on the peak stress, peak strain and specific energy of desert sand concrete was analyzed. The effect of desert sand substitution ratio on the peak stress of desert sand concrete was revealed. At the same time, the dynamic failure mode of desert sand concrete was studied. Experimental results show that with the increase of strain rate, the peak stress, stress intensity factor, peak strain and specific energy of desert sand concrete increase. At the same strain rate, the peak stress of desert sand concrete decreases with the enhancement of desert sand substitution ratio. Above results may provide guidance and reference in engineering application of desert sand.
中文关键词	沙漠砂混凝土 ; 分离式霍普金森压杆 ; 动态力学性能 ; 应变率效应
英文关键词	desert sand concrete split hopkinson pressure bar (SHPB) dynamic mechanical properties strain rate effect
语种	中文
国家	中国
收录类别	CSCD
WOS类目	CONSTRUCTION BUILDING TECHNOLOGY
WOS研究方向	Construction & Building Technology
CSCD记录号	CSCD:5516226
来源机构	宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233272
作者单位	宁夏大学土木与水利工程学院, 银川, 宁夏 750021, 中国
推荐引用方式 GB/T 7714	马菊荣,刘海峰,杨维武. 沙漠砂混凝土动态力学性能实验研究[J]. 宁夏大学,2015,30(4):491-498.
APA	马菊荣,刘海峰,&杨维武.(2015).沙漠砂混凝土动态力学性能实验研究.实验力学,30(4),491-498.
MLA	马菊荣,et al."沙漠砂混凝土动态力学性能实验研究".实验力学 30.4(2015):491-498.