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首页> 外文期刊>American journal of engineering and applied sciences >Advanced XFEM Simulation of Pull-out and Debonding of Steel Bars and FRP-Reinforcements in Concrete Beams
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Advanced XFEM Simulation of Pull-out and Debonding of Steel Bars and FRP-Reinforcements in Concrete Beams

机译:钢筋拉拔和粘结以及混凝土梁中FRP增强的高级XFEM模拟

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摘要

An innovative three-dimensional model is applied to the pull-out of steel bars and the debonding of FRP plates from concrete specimens. The shearing and opening modes at the interface of debonding is fully captured. The model is based on an innovative variant of the regularized extended Finite Element Method (XFEM) developed by the authors. In this method, the displacement discontinuity at the debonding surface is regularized and an internal length parameter is introduced. Besides smoothing the debonding, the regularized XFEM is particularly suitable for modelling steel fiber reinforced beams.
机译:将创新的三维模型应用于钢筋的拔出和FRP板与混凝土试样的脱粘。脱胶界面处的剪切和打开模式被完全捕获。该模型基于作者开发的正则化扩展有限元方法(XFEM)的创新变体。在这种方法中,将脱胶表面的位移不连续性进行调整,并引入内部长度参数。除了使脱粘平滑之外,正则化XFEM特别适用于对钢纤维增强梁进行建模。

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