Journal
ENGINEERING FRACTURE MECHANICS
Volume 169, Issue -, Pages 109-127Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2016.11.007
Keywords
Strain rate effects; Dynamic fracture of concrete; Failure mode; Irregular lattice model; Rigid-body-spring network
Categories
Funding
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [2014R1A2A2A01004421]
- National Research Foundation of Korea [2014R1A2A2A01004421] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
A three-dimensional irregular lattice model was proposed and validated for concrete failure simulations under high loading rates. The validity of the fracture criterion and time integration method of the model was established. Subsequently the change in failure mode with different loading rates was examined via simulations of a modified-split Hopkinson pressure bar. In this paper, the model is validated, focusing on the rate-dependent response of the Theological unit and the failure mode change in concrete under impact loads. The results prove the capability of the model for simulating impact behavior of concrete in terms of the stress-strain relation with different loading rates, failure mode, and load deflection curve. (C) 2016 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available