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首页> 外文期刊>Journal of engineering materials and technology >On the Modeling of Fibers Embedding in Aluminum Using Ultrasonic Consolidation
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On the Modeling of Fibers Embedding in Aluminum Using Ultrasonic Consolidation

机译：超声固结法模拟铝包埋纤维

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Ultrasonic consolidation of fiber optics in metals is of major importance allowing surface embedding and protecting the fibers from exposure to open environment. The paper investigates the computational modeling of this process of embedding fibers at the aluminum subsurface. This new method provides an opportunity to develop sensory materials (Mekid et al., 2015, "Towards Sensor Array Materials: Can Failure be Delayed?" Sci. Technol. Adv. Mater., 16(3), p. 034607) and new types of nervous materials (Mekid and Kwon, 2009, "Nervous Materials: A New Approach for Better Control, Reliability and Safety of Structures," Sci. Adv. Mater., 1(3), pp. 276-285) for structural health monitoring applications. A thermo-mechanical analysis of embedding SiC fiber in aluminum substrate has been conducted. The temperature distribution was obtained using a thermal model with process-dependent heat flux at the sonotrodelfoil interface, which is coupled to the structural model in an iterative manner for simulating fiber embedment. The structural model uses a process-dependent plastic flow rule with an isotropic hardening model. A ductile damage model is employed for the first time in simulating such problems in addition to the use of real material properties of the fiber, which has resulted in better numerical results. Both of these factors help in determining the extent of damage particularly to the fiber/sensor being embedded. The experimental test has shown good agreement.
机译：光纤在金属中的超声固结非常重要，可以进行表面嵌入并保护光纤免于暴露在开放环境中。本文研究了将纤维嵌入铝表面的过程的计算模型。这种新方法为开发感官材料提供了机会（Mekid等人，2015年，“迈向传感器阵列材料：是否可以延迟故障？” Sci。Technol。Adv。Mater。，16（3），第034607页）和新方法。类型的神经材料（Mekid和Kwon，2009年，“神经材料：更好地控制结构，可靠性和安全性的新方法”，Sci。Adv。Mater。，1（3），第276-285页）监视应用程序。进行了将SiC纤维嵌入铝基板的热机械分析。温度分布是使用热模型获得的，该热模型在sonotrodelfoil界面处具有与过程相关的热通量，该模型以迭代方式耦合到结构模型以模拟纤维嵌入。结构模型使用与过程相关的塑性流动规则和各向同性的硬化模型。除了使用纤维的实际材料特性外，还首次使用延性损伤模型来模拟此类问题，从而获得了更好的数值结果。这两个因素都有助于确定损坏的程度，特别是对要嵌入的光纤/传感器的损坏程度。实验测试显示出良好的一致性。

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