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Material Modelling in Multi-Physics FEM Simulation

机译：多物理有限元模拟中的材料建模

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Nowadays virtual prototyping has a great impact in the design process of an industrial component. Numerical techniques based on the Finite Element Method (FEM) are mature to provide computational tools that permit complex phenomena to be accurately simulated, even when dealing with multi-physical problems. This work puts in evidence that an inaccurate assessment of the material properties may compromise the benefit of such complex modelling techniques. For this purpose, firstly the case of thermo-mechanically loaded structures will be presented. Considering fire walls for naval applications, the influence of the rock wool elastic modulus in the safety behavior will be emphasized. In the case of steel making component, the paper proofs that only a correct cyclic plasticity model of the material (copper alloy) permits a durability analysis to be accurately performed. Finally, in the case of an energy-harvesting device, the importance of taking into account the orthotropic properties of the material will be highlighted.
机译：如今虚拟原型在工业部件的设计过程中具有很大的影响。基于有限元方法（FEM）的数值技术是成熟的，以提供允许复杂现象的计算工具即使在处理多身体问题时也能够精确模拟。这项工作提出了证据表明，物质性质的不准确评估可能会损害这种复杂的建模技术的益处。为此目的，首先将呈现热机械加载结构的情况。考虑到海军应用的防火墙，将强调岩棉羊毛弹性模量在安全行为中的影响。在钢制造部件的情况下，仅本材料（铜合金）的正确循环塑性模型的纸张证明允许准确地进行耐用性分析。最后，在能量收集装置的情况下，考虑到材料的正交性能的重要性将被突出显示。

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