Characterization of viscoelastic properties of EPDM molding compound for door grommet component using molecular dynamics and phenomenological modeling.

IF 2.4 3区 工程技术 Q3 ENGINEERING, MANUFACTURING Journal of Manufacturing Science and Engineering-transactions of The Asme Pub Date : 2023-06-28 DOI:10.1115/1.4062858
Salvador Gómez-Jiménez, T. Saucedo-Anaya, V. H. Baltazar Hernandez, Ada Rebeca Contreras-Rodriguez
{"title":"Characterization of viscoelastic properties of EPDM molding compound for door grommet component using molecular dynamics and phenomenological modeling.","authors":"Salvador Gómez-Jiménez, T. Saucedo-Anaya, V. H. Baltazar Hernandez, Ada Rebeca Contreras-Rodriguez","doi":"10.1115/1.4062858","DOIUrl":null,"url":null,"abstract":"\n The automotive industry is evolving by incorporating innovative tools to improve production processes. A proper manufacturing process influences the behavior of the door grommet during its lifetime. In this paper, molecular dynamics simulations are conducted to evaluate the chemical and physical crosslinking of the EPDM rubber over a range of temperatures using a COMPASS force field. Then, once the EPDM model was equilibrated and all possible crosslinks were formed, additional simulations were performed on the model to explore its mechanical behavior. Subsequently, using the superposition principle, viscosity and curing kinetics were evaluated using phenomenological models. To, validate the results of the simulations, three injection tests of the door grommet, were performed at different temperature conditions. The results indicate that the viscosity and elastic properties increase with increasing levels of crosslink density and that the critical gel point decreases with temperature. Molecular dynamics superposition results in phenomenological models are in reasonable agreement with the kinetic and viscoelastic behavior of EPDM during and after the injection process. The results presented in this paper provide novel molecular-level findings on the crosslinking mechanisms of amorphous polymers and their influence on viscoelastic behavior, which could facilitate the design of the injection process for door grommet applications","PeriodicalId":16299,"journal":{"name":"Journal of Manufacturing Science and Engineering-transactions of The Asme","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Manufacturing Science and Engineering-transactions of The Asme","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1115/1.4062858","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, MANUFACTURING","Score":null,"Total":0}
引用次数: 0

Abstract

The automotive industry is evolving by incorporating innovative tools to improve production processes. A proper manufacturing process influences the behavior of the door grommet during its lifetime. In this paper, molecular dynamics simulations are conducted to evaluate the chemical and physical crosslinking of the EPDM rubber over a range of temperatures using a COMPASS force field. Then, once the EPDM model was equilibrated and all possible crosslinks were formed, additional simulations were performed on the model to explore its mechanical behavior. Subsequently, using the superposition principle, viscosity and curing kinetics were evaluated using phenomenological models. To, validate the results of the simulations, three injection tests of the door grommet, were performed at different temperature conditions. The results indicate that the viscosity and elastic properties increase with increasing levels of crosslink density and that the critical gel point decreases with temperature. Molecular dynamics superposition results in phenomenological models are in reasonable agreement with the kinetic and viscoelastic behavior of EPDM during and after the injection process. The results presented in this paper provide novel molecular-level findings on the crosslinking mechanisms of amorphous polymers and their influence on viscoelastic behavior, which could facilitate the design of the injection process for door grommet applications
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
用分子动力学和现象学建模表征三元乙丙橡胶门套件成型胶黏弹性性能。
汽车行业正在通过整合创新工具来改进生产流程。正确的制造工艺影响着门环在其使用寿命期间的性能。本文利用COMPASS力场进行了分子动力学模拟,以评估EPDM橡胶在一定温度范围内的化学和物理交联。然后,一旦EPDM模型平衡并形成所有可能的交联,则对模型进行额外的模拟以探索其力学行为。随后,利用叠加原理,利用现象学模型对粘度和固化动力学进行了评价。为了验证仿真结果,在不同温度条件下对车门密封圈进行了三次注射试验。结果表明,黏度和弹性随交联密度的增加而增加,临界凝胶点随温度的升高而降低。现象学模型的分子动力学叠加结果与EPDM注射过程中和注射后的动力学和粘弹性行为基本一致。本文的研究结果为非晶态聚合物的交联机理及其对粘弹性行为的影响提供了新的分子水平的发现,这将有助于门环应用的注射工艺设计
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 去求助
来源期刊
CiteScore
6.80
自引率
20.00%
发文量
126
审稿时长
12 months
期刊介绍: Areas of interest including, but not limited to: Additive manufacturing; Advanced materials and processing; Assembly; Biomedical manufacturing; Bulk deformation processes (e.g., extrusion, forging, wire drawing, etc.); CAD/CAM/CAE; Computer-integrated manufacturing; Control and automation; Cyber-physical systems in manufacturing; Data science-enhanced manufacturing; Design for manufacturing; Electrical and electrochemical machining; Grinding and abrasive processes; Injection molding and other polymer fabrication processes; Inspection and quality control; Laser processes; Machine tool dynamics; Machining processes; Materials handling; Metrology; Micro- and nano-machining and processing; Modeling and simulation; Nontraditional manufacturing processes; Plant engineering and maintenance; Powder processing; Precision and ultra-precision machining; Process engineering; Process planning; Production systems optimization; Rapid prototyping and solid freeform fabrication; Robotics and flexible tooling; Sensing, monitoring, and diagnostics; Sheet and tube metal forming; Sustainable manufacturing; Tribology in manufacturing; Welding and joining
期刊最新文献
CONTINUOUS STEREOLITHOGRAPHY 3D PRINTING OF MULTI-NETWORK HYDROGELS IN TRIPLY PERIODIC MINIMAL STRUCTURES (TPMS) WITH TUNABLE MECHANICAL STRENGTH FOR ENERGY ABSORPTION A Review of Prospects and Opportunities in Disassembly with Human-Robot Collaboration The Effect of Microstructure on the Machinability of Natural Fiber Reinforced Plastic Composites: A Novel Explainable Machine Learning (XML) Approach A Digital Twin-based environment-adaptive assignment method for human-robot collaboration Combining Flexible and Sustainable Design Principles for Evaluating Designs: Textile Recycling Application
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1