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Collision Behavior Evaluation of Flexible Concrete Mattress Depending on Material Models

재료모델에 따른 유연 콘크리트 매트리스의 충돌 거동 평가

  • Received : 2014.06.25
  • Accepted : 2015.02.16
  • Published : 2015.02.28

Abstract

The purpose of this study was to provide fundamental data for an anchor collision simulation of an FCM (flexible concrete mattress). Numerical material models (elastic-perfectly plastic model, Drucker-Prager model, and RHT concrete model) were compared. ANSYS Explicit Dynamics was used for collision analyses. An FE model was used for the anchor, FCM, andreinforcement bars. The results showed that the behavior of the FCM was verydifferent that those ofthe material models. In particular, the effect of the pressure dependent strength was most noticeable among the properties of concrete.

Keywords

Collision simulation;Submarine cable protector;Flexible concrete mattress;Material model;Drucker-Prager model;RHT concrete model

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  1. Damage Evaluation of Flexible Concrete Mattress Considering Steel Reinforcement Modeling and Collision Angle of Anchor vol.30, pp.2, 2016, https://doi.org/10.5574/KSOE.2016.30.2.109
  2. Comparison of Underwater Drop Characteristics for Hazard Apparatuses on Subsea Cable Using Fluid-Structure Interaction Analysis vol.32, pp.5, 2018, https://doi.org/10.26748/KSOE.2018.6.32.5.324