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http://dx.doi.org/10.12989/cac.2020.26.5.377

Numerical simulation of the effect of missile impact on the concrete layers  

Sarfarazi, Vahab (Department of Mining Engineering, Hamedan University of Technology)
Abad, Shadman M. Bolban (Department of Mining Engineering, Hamedan University of Technology)
Publication Information
Computers and Concrete / v.26, no.5, 2020 , pp. 377-384 More about this Journal
Abstract
A two-dimensional particle flow cod (PFC) is used to study the effect of missile impact on the concrete target. For this purpose firstly calibration of numerical model was performed so that tensile strength of numerical models and experimental sample were the same. Secondly, a concrete model was built. The number of concrete layers and the angle of concrete layers related to horizontal axis were changed. Their numbers were 1, 2, 3 and 4. The angles were 0°, 15°, 30°, 45°, 60°, 75° and 90°. A semi-circle missile was simulated at top of the concrete layers. Its velocity in opposite side of Y direction was 100 m/s. three measuring circles were situated at the below the missile in the model to receive the applied force. The load in the missile and measuring circles together with failure pattern were registered at the beginning of the impaction. The results show that concrete layers number and concrete layers angle have important effect on the failure load while the failure pattern was nearly constant in all of the models.
Keywords
PFC2D; concrete layers; missile impact;
Citations & Related Records
Times Cited By KSCI : 10  (Citation Analysis)
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