E3S Web Conf.
Volume 237, 20213rd International Symposium on Architecture Research Frontiers and Ecological Environment (ARFEE 2020)
|Number of page(s)||4|
|Section||Architecture Science and Civil Engineering|
|Published online||09 February 2021|
Influence of Loading Peak and Loading Rate on Twin Fibers Pullout Test of Concrete Matrix
School of Civil Engineering, Guangzhou University, Guangzhou 510006, China;
2 Guangzhou City Construction & Development Co. Ltd. 510085, P. R. China
* Corresponding author: firstname.lastname@example.org
Numerical analysis software based on linear finnite element method and statistical damage theory concrete material has been adopted in this study. Dynamic numerical model of twin fibers pullout test of concrete matrix have been created by considering the meso-heterogeneity of concrete material. The whole process from micro-cracks initiation, propagation to crack penetration has been simulated. The influence of stress wave loading peak and loading rate on twin fibers pull-out test of concrete matrix under dynamic load has, therefore, been scrutinized. Results show that loading rate has effect on failure mode and crack propagation along interface of the twin fibers pull-out specimens. With increasing loading rates, the rate of interface crack propagation and damage area increase either.
© The Authors, published by EDP Sciences, 2021
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