Numerical modelling of CFRP induction heating using temperature-dependent material properties
Numerical modelling of CFRP induction heating using temperature-dependent material properties
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DOI：
10.1016/j.compositesb.2021.108982
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发表时间：
2021-05-19
影响因子：
13.1
通讯作者：
Andersson, Mats
中科院分区：
文献类型：
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作者：
Lundstrom, Fredrik;Frogner, Kenneth;Andersson, Mats
CFRP 感应加热是一种节能且快速的方法，可用于热固性 CFRP 固结或热塑性 CFRP 焊接等过程中。本研究研究了 CFRP 的感应加热如何受到热性能和电性能的温度依赖性的影响，并提出了一个简单的数值模型，用于计算圆形线圈感应加热过程中的温度分布。在宏观层面上测量与温度相关的电学和热学特性，并将其用于数值模型中。在感应加热过程中进行热成像记录，以验证数值模型的结果。结果表明在数值模型中使用与温度相关的热属性的重要性，而可能没有必要使用与温度相关的电导率，因为对计算的发热和温度影响很小。
Induction heating of CFRP is an energy-efficient and fast method that may be used for example during consolidation of thermoset-based CFRP or welding of thermoplastic-based CFRP. This study investigates how induction heating of CFRP is affected by the temperature dependence of the thermal and electrical properties and presents a simple numerical model for computation of the temperature distribution during induction heating with a circular coil. Temperature-dependent electrical and thermal properties are measured on a macroscopic level and used in the numerical model. Thermographic recordings are made during induction heating to validate the results from the numerical model. The result shows the importance of using temperature-dependent thermal properties in the numerical model, while it might not be necessary to use temperature-dependent electrical conductivity because of the small impact on the computed heat generation and temperature.