Comparative characterization of the viscoelastic properties of additive manufacturing polymers

IF 2.1 4区材料科学 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Mechanics of Time-Dependent Materials Pub Date : 2024-06-07 DOI:10.1007/s11043-024-09710-7

Anil Singh, Mia Chen, George Youssef

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Abstract

The recent availability of a wide range of additively manufactured materials has facilitated the translation from prototype-limited to application-ready 3D printed components. As such, additively manufactured materials deployed in dynamic environments require extensive characterization to elucidate and optimize performance. This research evaluates the dynamic response of fused filament fabrication and vat photopolymerization printed polymers as a function of temperature. Dynamic mechanical analysis is used to extract the viscoelastic properties of several generations of samples exhibiting a range of thermomechanical behavior, highlighting the stiffness and damping characteristics. A modified stiffness–temperature model supports the experimental characterization and provides additional insight concerning the molecular motion occurring over each thermal transition. The insights from the analysis were collated into a case study that leverages their dynamic characteristics in a multimaterial application. The outcomes from this research assimilate a framework that defines the temperature operating range and broadens the design envelope for these additive manufacturing materials.

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增材制造聚合物粘弹性能的比较表征

最近，各种快速成型材料的出现促进了从原型受限到应用就绪的 3D 打印组件的转变。因此，在动态环境中使用的快速成型材料需要进行广泛的表征，以阐明和优化其性能。本研究评估了熔融长丝制造和大桶光聚合打印聚合物随温度变化的动态响应。动态机械分析用于提取几代样品的粘弹特性，这些样品表现出一系列热机械行为，突出了刚度和阻尼特性。修改后的刚度-温度模型支持实验特性分析，并提供了有关每个热转变过程中发生的分子运动的更多信息。分析得出的见解被整理成一个案例研究，利用它们在多材料应用中的动态特性。这项研究的成果吸收了一个框架，该框架定义了这些增材制造材料的温度工作范围，并拓宽了其设计范围。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Mechanics of Time-Dependent Materials 工程技术-材料科学：表征与测试

CiteScore

4.90

自引率

8.00%

发文量

审稿时长

>12 weeks

期刊介绍： Mechanics of Time-Dependent Materials accepts contributions dealing with the time-dependent mechanical properties of solid polymers, metals, ceramics, concrete, wood, or their composites. It is recognized that certain materials can be in the melt state as function of temperature and/or pressure. Contributions concerned with fundamental issues relating to processing and melt-to-solid transition behaviour are welcome, as are contributions addressing time-dependent failure and fracture phenomena. Manuscripts addressing environmental issues will be considered if they relate to time-dependent mechanical properties. The journal promotes the transfer of knowledge between various disciplines that deal with the properties of time-dependent solid materials but approach these from different angles. Among these disciplines are: Mechanical Engineering, Aerospace Engineering, Chemical Engineering, Rheology, Materials Science, Polymer Physics, Design, and others.