Study on temperature gradient of ultra-thick foam sandwich composite structure during curing

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering Pub Date : 2024-11-26 DOI:10.1016/j.csite.2024.105552

Yi Sun , Xue-Ying Zhao , Yu-Kui Wang , Hai-Tao Zhao , Si-Si Xu , Pei-Zhi Li , Xiao-Chu Gao

{"title":"Study on temperature gradient of ultra-thick foam sandwich composite structure during curing","authors":"Yi Sun , Xue-Ying Zhao , Yu-Kui Wang , Hai-Tao Zhao , Si-Si Xu , Pei-Zhi Li , Xiao-Chu Gao","doi":"10.1016/j.csite.2024.105552","DOIUrl":null,"url":null,"abstract":"<div><div>This paper conducts numerical simulations and experimental measurements on the temperature distribution of ultra-thick foam sandwich composite structure with varying ply thicknesses, aiming to investigate the influence of prepreg ply thickness on the temperature gradient of foam sandwich structure. Firstly, the curing kinetic of CYCOM970/T300 prepreg was studied using non-isothermal differential scanning calorimetry (DSC). Then, thermal analysis of foam sandwich composite structure with different ply thicknesses was conducted using ABAQUS software combined with user subroutines. Subsequently, thermocouple sensors were used to measure the curing temperature of foam sandwich structure. The results indicate that the prepreg ply thickness has a significant impact on the temperature gradient during the curing process of foam sandwich structure. When there are a larger number of prepreg plies, overheating of the prepreg on the foam upper layer occurs, resulting in a significant temperature gradient in the thickness direction of the structure. In this case, reducing the heating rate of the autoclave curing process can effectively reduce the temperature overshoot of the prepreg on the foam upper layer.</div></div>","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"65 ","pages":"Article 105552"},"PeriodicalIF":6.4000,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Case Studies in Thermal Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214157X24015831","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"THERMODYNAMICS","Score":null,"Total":0}

引用次数: 0

Abstract

This paper conducts numerical simulations and experimental measurements on the temperature distribution of ultra-thick foam sandwich composite structure with varying ply thicknesses, aiming to investigate the influence of prepreg ply thickness on the temperature gradient of foam sandwich structure. Firstly, the curing kinetic of CYCOM970/T300 prepreg was studied using non-isothermal differential scanning calorimetry (DSC). Then, thermal analysis of foam sandwich composite structure with different ply thicknesses was conducted using ABAQUS software combined with user subroutines. Subsequently, thermocouple sensors were used to measure the curing temperature of foam sandwich structure. The results indicate that the prepreg ply thickness has a significant impact on the temperature gradient during the curing process of foam sandwich structure. When there are a larger number of prepreg plies, overheating of the prepreg on the foam upper layer occurs, resulting in a significant temperature gradient in the thickness direction of the structure. In this case, reducing the heating rate of the autoclave curing process can effectively reduce the temperature overshoot of the prepreg on the foam upper layer.

查看原文本刊更多论文

超厚泡沫夹层复合材料结构固化过程温度梯度研究

本文对不同厚度的超厚泡沫夹层复合材料结构的温度分布进行了数值模拟和实验测量，旨在研究预浸料厚度对泡沫夹层结构温度梯度的影响。首先，采用非等温差示扫描量热法（DSC）研究了CYCOM970/T300预浸料的固化动力学。然后，利用ABAQUS软件结合用户子程序对不同厚度泡沫夹层复合材料结构进行热分析。随后，利用热电偶传感器对泡沫夹层结构的固化温度进行了测量。结果表明，预浸料厚度对泡沫夹层结构固化过程中的温度梯度有显著影响。当预浸料层数较大时，泡沫上层的预浸料会发生过热，导致结构厚度方向的温度梯度明显。在这种情况下，降低蒸压釜固化过程的升温速率，可以有效降低泡沫上层预浸料的温度超调。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.