TY - GEN
T1 - The effect of shear and bending capacities on impact behavior of RC beams
AU - Wongmatar, P.
AU - Hansapinyo, C.
AU - Bi, K. M.
AU - Vimonsatit, V.
N1 - Funding Information:
The author would like to acknowledge Chiang Mai University under 50th anniversary scholarship for financial support.
Publisher Copyright:
© 2017 Taylor & Francis Group, London.
PY - 2017
Y1 - 2017
N2 - The behavior of reinforced concrete beams under impact loading has been widely studied through experimental investigations. However, because of the limitation of the instruments, only the member behavior (e.g. the local behavior of reinforcement bars, stirrups and concrete) has been presented. With the use of 3D finite element modelling, more detailed information can be explored than with the experimental studies. This paper carries out numerical simulations on the impact behavior of Reinforced Concrete (RC) beams using an explicit finite element code LS-DYNA to investigate the local behaviors. First, the numerical models are validated by comparing the numerical results with the experimental values reported in the literature, in terms of impact force history, mid-span deflection history and damage patterns of RC beams. The simply supported RC beams with different bending capacities and shear capacities are analyzed under impact loading at mid-span. Moreover, the ultimate capacities under gradually increasing static point load at mid-span of the beams are also numerically investigated. Numerical results show that due to the effect of inertia force, transferred load at supports from the impact load at mid-span is smaller compared with that from static loading. It is found that the different shear-to-bending capacity ratio leads to different damage pattern and local behavior of the beams.
AB - The behavior of reinforced concrete beams under impact loading has been widely studied through experimental investigations. However, because of the limitation of the instruments, only the member behavior (e.g. the local behavior of reinforcement bars, stirrups and concrete) has been presented. With the use of 3D finite element modelling, more detailed information can be explored than with the experimental studies. This paper carries out numerical simulations on the impact behavior of Reinforced Concrete (RC) beams using an explicit finite element code LS-DYNA to investigate the local behaviors. First, the numerical models are validated by comparing the numerical results with the experimental values reported in the literature, in terms of impact force history, mid-span deflection history and damage patterns of RC beams. The simply supported RC beams with different bending capacities and shear capacities are analyzed under impact loading at mid-span. Moreover, the ultimate capacities under gradually increasing static point load at mid-span of the beams are also numerically investigated. Numerical results show that due to the effect of inertia force, transferred load at supports from the impact load at mid-span is smaller compared with that from static loading. It is found that the different shear-to-bending capacity ratio leads to different damage pattern and local behavior of the beams.
UR - http://www.scopus.com/inward/record.url?scp=85034956790&partnerID=8YFLogxK
M3 - Conference article published in proceeding or book
AN - SCOPUS:85034956790
SN - 9781138029934
T3 - Mechanics of Structures and Materials: Advancements and Challenges - Proceedings of the 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM24 2016
SP - 561
EP - 566
BT - Mechanics of Structures and Materials
A2 - Zhang, Chunwei
A2 - Hao, Hong
PB - CRC Press/Balkem
T2 - 24th Australasian Conference on the Mechanics of Structures and Materials, ACMSM 2016
Y2 - 6 December 2016 through 9 December 2016
ER -