Temperature distribution analysis of carbon fiber reinforced polymer composites during self-resistance electric heating process
Temperature distribution analysis of carbon fiber reinforced polymer composites during self-resistance electric heating process
复制标题
碳纤维增强聚合物复合材料自电阻电加热过程温度分布分析
DOI：
10.1177/07316844211073482
复制
发表时间：
2022-06
影响因子：
3.1
通讯作者：
Xiaozhong Hao
中科院分区：
文献类型：
--
作者：
Yan Shen;Yong Lu;Shuting Liu;Xiaozhong Hao
碳纤维增强塑料(CFRP)的自电阻电加热(SRE)是一种高效、低能耗的替代高压釜外固化方法。然而，由于由内而外传导的加热机理与传统的由外而内加热过程有很大的不同，其温度分布及其均化策略仍需进一步研究。本文利用多物理数值计算模型和实验验证，重点分析了碳纤维复合材料层板在SRE固化过程中温度均匀性的影响因素。研究发现，由于模具中心到边缘的热吸收不均匀，模具尺寸的影响最为显著。如果结晶器的过剩尺寸比例小于10%，则未处理过程中的最大温差可小于20K。气凝胶制成的热障均匀了驻留阶段的温度分布，使最大温差降低了84.18%。考虑到模具尺寸有时是不变的，辅助加热元件的存在补偿了自热层压板的散热，并将最大温差降低了79.81%。根据分析结果，提出了均温化策略，使最大温差减小了86.15%。
Self-resistance electric (SRE) heating for carbon fiber reinforced plastics (CFRP) is an alternative out-of-autoclave curing methodology that has high efficiency and low energy consumption. However, thanks to the heating mechanism of inside-out conduction, which is significantly different from that of the traditional outside-in heating process, the temperature distribution and its homogenization strategy still need further investigation. This work focuses on analyzing the affecting factors of the temperature uniformity of CFRP laminates during the SRE curing process utilizing a multi-physical numerical computation model and experimental verification. It is found that mold sizes have the most significant impact due to the non-uniform center-to-edge heat absorption of the mold. The maximum temperature difference during the untreated process could be lower than 20 K if the excess size proportion of the mold is smaller than 10%. Thermal barriers made of aerogel homogenize the temperature distribution during the dwell stage, reducing the maximum temperature difference by 84.18%. Considering that the mold size is sometimes unchangeable, the existence of auxiliary heating elements compensates the heat dissipation from the self-heated laminate and reduces the maximum temperature difference by 79.81%. Based on analysis results, a temperature homogenization strategy is proposed, where the maximum temperature difference is reduced by 86.15%.
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影响因子：
13.1
作者：
Athanasopoulos, N.;Koutsoukis, G.;Kostopoulos, V.
通讯作者：
Kostopoulos, V.
DOI：
10.1016/j.compositesa.2016.11.014
发表时间：
2017-02-01
影响因子：
8.7
作者：
Struzziero, G.;Skordos, A. A.
通讯作者：
Skordos, A. A.
DOI：
10.1179/2055035915y.0000000001
发表时间：
2015-01-01
影响因子：
--
作者：
Hayes, Simon A.;Lafferty, Austin D.;Duchene, P.
通讯作者：
Duchene, P.
影响因子：
3.6
作者：
Nam Nguyen;Hao, Ayou;Liang, Richard
通讯作者：
Liang, Richard
DOI：
10.1016/j.compositesa.2015.10.020
发表时间：
2016
影响因子：
8.7
作者：
J. Weiland;M. Hartmann;R. Hinterhölzl
通讯作者：
J. Weiland;M. Hartmann;R. Hinterhölzl