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Determining the impact behavior of concrete beams through experimental testing and meso-scale simulation: I. Drop-weight tests

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成果类型:
期刊论文
作者:
Wu, Mingxin;Chen, Zhenfu;Zhang, Chuhan*
通讯作者:
Zhang, Chuhan
作者机构:
[Wu, Mingxin; Zhang, Chuhan] Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China.
[Chen, Zhenfu] Univ South China, Sch Urban Construct, Hengyang 421001, Peoples R China.
通讯机构:
[Zhang, Chuhan] T
Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China.
语种:
英文
关键词:
Concrete;Drop-weight tests;Energy conversion;Momentum-impulse equilibrium;Rate effects
期刊:
Engineering Fracture Mechanics
ISSN:
0013-7944
年:
2015
卷:
135
页码:
94-112
基金类别:
We express our appreciation to Professor Changqing Guo for his valuable suggestions for this study. We also sincerely thank Professors Feng Jin, Jinting Wang and Yanjie Xu for their discussions with us. We acknowledge the assistance of Mr. Tao Li, Mr. Kui Zhang, and Ms. Shanshan Guo as well. Moreover, this work was supported by the National Natural Science Foundation of China (Grant Nos. 51479098 , 51239006 and 91215301 ).
机构署名:
本校为其他机构
院系归属:
土木工程学院
摘要:
This study investigates the impact behavior of concrete beams using drop-weight facility. Different tups were used and varying drop weights and heights were applied. This study measures impact loads, mid-span accelerations, and strains at the top and bottom edges of the beam. To distinguish the inertial and bending components of impact forces, inertial force is formulated based on elastic beam theory. When the strain rate ranges between 0.1s-1 and 4s-1, rate effect is significant given corresponding dynamic increase factors ranging from 1.6 to ...

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