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Volume 34 Issue 3
Jun 2020
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Chinese Journal of High Pressure Physics  > 2020  >  34(3): 034205.
YIN Huawei, JIANG Ke, ZHANG Liao, HUANG Liang, WANG Chenling. K&C Model of Steel Fiber Reinforced Concrete Plate under Impact and Blast Load[J]. Chinese Journal of High Pressure Physics, 2020, 34(3): 034205. doi: 10.11858/gywlxb.20190853
Citation: YIN Huawei, JIANG Ke, ZHANG Liao, HUANG Liang, WANG Chenling. K&C Model of Steel Fiber Reinforced Concrete Plate under Impact and Blast Load[J]. Chinese Journal of High Pressure Physics, 2020, 34(3): 034205. doi: 10.11858/gywlxb.20190853
shu

K&C Model of Steel Fiber Reinforced Concrete Plate under Impact and Blast Load

doi: 10.11858/gywlxb.20190853
  • 1.

    College of Civil Engineering, Hunan University, Changsha 410082, Hunan, China

  • 2.

    Civil Engineering Inspection and Test Limited Company of Hunan University, Changsha 410082, Hunan, China

  • Received Date: 01 Nov 2019
  • Rev Recd Date: 25 Nov 2019
    Abstract
  • Steel fiber reinforced concrete (SFRC) is widely used in protective structures due to its excellent ductility, toughness and energy absorption capacity. K&C model is a common constitutive model for studying the response of normal concrete components under impact and blast loads, but it cannot accurately characterize the dynamic response of SFRC. In order to improve prediction of K&C model for the dynamic response of SFRC plate under impact and blast load, this work improves K&C model: a new failure strength surface parameter model was established based on a large number of triaxial compression experimental data, a new damage evolution model was established by trial-and-error method, and the damage parameters of tensile and compressive were calibrated. A new compression dynamic increase factor (CDIF) model was established based on a large number of uniaxial compression experimental data of SFRC under high strain rate. The dynamic response of SFRC plate is simulated by explicit dynamic analysis software LS-DYNA. The effectiveness and reliability of the above improvements have been verified by simulation results.

     

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