Experimental study on dynamic direct tensile performances of steel fiber-reinforced RPC at high strain rates

剥落 极限抗拉强度 材料科学 分离式霍普金森压力棒 应变率 复合材料 压缩(物理) 纤维混凝土 纤维 张力(地质) 动载荷 拉伸试验 动张力 结构工程 工程类
作者
Shaojun Cao,Xiaomeng Hou,Zhijun Dong
出处
期刊:Journal of building engineering [Elsevier BV]
卷期号:92: 109673-109673
标识
DOI:10.1016/j.jobe.2024.109673
摘要

Reactive power concrete (RPC) exhibits excellent mechanical properties, makes it great potential for applications. RPC has gained increasing attention in academic and engineering areas and has been used in fields such as anti-explosion engineering. The insufficient tensile strength of RPC is one of the critical reasons for its structural failure. Existing studies revealed that the strain rate effect of concrete under dynamic tension is stronger than that under dynamic compression. The existing research focuses either on dynamic splitting and spalling tests, or dynamic uniaxial tensile properties with a strain rate of 0-100/s, neither of which are representative of the effect of RPC subject to explosion. In addition, the study of the dynamic uniaxial tensile constitutive model of RPC has not been reported in the existing research. To solve the existing limitations, this study conducted dynamic direct tension tests on steel fiber-reinforced RPC with a predefined strain rate higher than 100 s-1 using a Split Hopkinson Tension Bar (SHTB) apparatus. RPC dumbbell-shaped samples, including plain RPC and steel fiber-reinforced RPC (SFRPC) with 1% and 2% fiber volumetric fractions, were tested at high strain rates of 98-528 s-1. Based on the test results of this study and those derived from existing publications, the relationship between dynamic direct tensile properties, steel fiber fraction, and strain rate was quantitatively analyzed, and corresponding empirical formulae were proposed. To meet the demand for numerical analysis on RPC structures subjected to explosive forces, a dynamic tensile stress-strain model for steel fiber-reinforced RPC considering steel fiber, strain rate, and dynamic toughness, was established.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
SHAO应助云月林生采纳,获得10
刚刚
bamboo发布了新的文献求助10
刚刚
1秒前
烟花应助Luna采纳,获得10
1秒前
浮生发布了新的文献求助10
3秒前
liyao90911发布了新的文献求助10
3秒前
CodeCraft应助zyc采纳,获得10
3秒前
迷人的天抒应助王侯将相采纳,获得10
4秒前
细腻盼晴完成签到,获得积分10
4秒前
英吉利25发布了新的文献求助10
5秒前
李家人应助醍醐不醒采纳,获得20
5秒前
5秒前
无花果应助ckk采纳,获得10
6秒前
6秒前
7秒前
7秒前
fd163c应助Chambray采纳,获得10
8秒前
cupid发布了新的文献求助10
9秒前
小白鹅爱学习完成签到,获得积分10
9秒前
9秒前
pluto应助tt耶采纳,获得10
9秒前
9秒前
没有蛀牙发布了新的文献求助30
9秒前
可爱的函函应助Allonz采纳,获得10
9秒前
10秒前
顾矜应助杨xy采纳,获得10
10秒前
占曼荷发布了新的文献求助10
11秒前
欣慰的海发布了新的文献求助10
11秒前
someone完成签到,获得积分10
11秒前
北落发布了新的文献求助10
11秒前
12秒前
12秒前
12秒前
12秒前
善学以致用应助Dpd采纳,获得10
13秒前
Sakura关注了科研通微信公众号
13秒前
13秒前
13秒前
14秒前
TOMMY233完成签到,获得积分10
14秒前
高分求助中
Picture Books with Same-sex Parented Families: Unintentional Censorship 1000
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3978526
求助须知:如何正确求助?哪些是违规求助? 3522634
关于积分的说明 11214133
捐赠科研通 3260065
什么是DOI,文献DOI怎么找? 1799744
邀请新用户注册赠送积分活动 878642
科研通“疑难数据库(出版商)”最低求助积分说明 807002