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首页> 外文期刊>European Journal of Environmental and Civil Engineering >Numerical simulation of reinforcement in steel slender silos having concentric hopper with carbon fiber-reinforced polymer composites (study of the silos filling)
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Numerical simulation of reinforcement in steel slender silos having concentric hopper with carbon fiber-reinforced polymer composites (study of the silos filling)

机译：具有碳纤维增强聚合物复合材料的同心料斗的细长钢筒仓中钢筋的数值模拟（筒仓填充的研究）

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摘要

This paper presents a numerical analysis of the reinforcement of steel slender silos having concentric hopper with carbon fiber-reinforced polymer (CFRP). The numerical model has been developed using the finite element method, where the stored material was considered to be wheat. The actions of the stored material over the silo wall were obtained by simultaneously modelling the silo wall with shell elements, and the wheat with solid elements. The interaction between both materials was properly simulated by using adequate contact elements. The Drucker Prager elastoplastic criterion was used to define the behaviour of the stored material. The simulations analysed the influence of different reinforcement layers and the placement of reinforcement. In all cases, the effectiveness of the CFRP use for reinforcing steel slender silos was obtained. Indeed, a significant reduction of the circumferential and meridional stresses, especially for the bin - hopper junction was also obtained. The results shows that up to 50% reduction of stresses are obtained in the silo with five layers compared to a silo with non-reinforced wall. The reinforcement with CFRP can be of interest for silos having suffered damage and alterations that induced a reduction in the thickness of their walls.
机译：本文对碳纤增强聚合物（CFRP）对具有同心料斗的细长钢筒仓进行加固的数值分析进行了分析。使用有限元方法开发了数值模型，其中存储的材料被认为是小麦。通过同时对具有壳单元的筒仓壁和具有实体单元的小麦进行建模，可以获得存储在筒仓壁上的物料的作用。两种材料之间的相互作用通过使用适当的接触元件进行了正确模拟。 Drucker Prager弹塑性准则用于定义存储材料的行为。仿真分析了不同加固层和加固位置的影响。在所有情况下，均获得了CFRP用于加固细长钢筒仓的效果。实际上，还获得了周向和子午应力的显着降低，特别是对于料斗-料斗接合处。结果表明，与无加强壁的筒仓相比，五层筒仓的应力降低了50％。 CFRP加固对于遭受损坏和变更而导致其壁厚减小的筒仓可能是令人感兴趣的。

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