Collaborative Research: Nonlinear Mechanical Spectroscopy of Glassy Polymers to Probe Viscoelastic Constitutive Behavior

合作研究:玻璃态聚合物的非线性机械光谱学探测粘弹性本构行为

基本信息

  • 批准号:
    1661246
  • 负责人:
  • 金额:
    $ 20.73万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2017
  • 资助国家:
    美国
  • 起止时间:
    2017-06-01 至 2021-05-31
  • 项目状态:
    已结题

项目摘要

This award supports research to characterize the nonlinear viscoelastic behavior of glassy polymers. Understanding the long-term mechanical behavior of glassy polymers is critical for assurance of the durability of glassy polymers in their use as stand-alone materials, or as matrix materials for advanced composites, in applications that require low-density and high specific strength materials, such as in automotive, sports, and aerospace industries. This project will take steps to address the challenge from a fundamental perspective using a novel nonlinear fingerprinting methodology that promises to bring important advances for development of premier products, hence benefiting US industry and society. In the past, the fingerprinting methodology has been used to characterize polymeric fluids. This award extends the method to polymer glasses, both through novel experiments and through appropriate nonlinear constitutive modeling and validation. The graduate students on the project will be trained in this cutting edge research, which involves experimental and computational mechanics of time-dependent materials, glassy polymer physics, and structure-property relations for engineering polymers. The project will also leverage STEM outreach programs at both Texas Tech University and University of Texas Dallas to excite K-12 students about science and engineering.Fundamental knowledge related to the nonlinear viscoelastic behavior of solid polymers will be pursued in this project. This requires a general scheme to classify the variety of observed behaviors and use these observations to challenge the relevant constitutive equations. The research will use the combined Large Amplitude Oscillatory Shear and Mechanical Spectral Hole Burning fingerprinting methodology to provide fingerprints of the nonlinear viscoelastic behavior of a series of glassy polymers and to challenge them against a set of nonlinear constitutive law predictions from several leading models from the literature. Not only will the work show that the method can be applied to glassy polymers, but by choosing to examine polymers with different degrees of heterogeneity, as estimated by the strength of the beta-relaxation, the method can differentiate among different types of nonlinear behavior and, in principle, determine how the details of the dynamic heterogeneity impacts the fingerprints and the constitutive model parameters. This provides an important advance in ideas of structure-property relations in the nonlinear mechanics of polymers. Furthermore, the work provides a critical evaluation of the fingerprinting paradigm, currently developed for shearing deformations in nonlinear fluids, by making measurements in non-volume preserving conditions, viz., tension and compression to develop material fingerprints as a function of said deformation geometries and comparing them to the shearing results.
该奖项支持研究,以表征玻璃状聚合物的非线性粘弹性行为。了解玻璃态聚合物的长期力学行为对于确保玻璃态聚合物在需要低密度和高比强度材料的应用中(如汽车、体育和航空航天工业)作为独立材料或作为先进复合材料的基体材料使用时的耐久性至关重要。该项目将采取措施,从根本上解决这一挑战,使用一种新的非线性指纹识别方法,有望为开发优质产品带来重要进展,从而使美国工业和社会受益。在过去,指纹识别方法已被用于表征聚合物流体。该奖项通过新颖的实验和适当的非线性本构建模和验证,将该方法扩展到聚合物玻璃。该项目的研究生将接受这项前沿研究的培训,其中涉及时间相关材料的实验和计算力学,玻璃态聚合物物理学以及工程聚合物的结构-性能关系。该项目还将利用德克萨斯理工大学和德克萨斯大学达拉斯分校的STEM外展项目,激发K-12学生对科学和工程的兴趣。该项目将研究与固体聚合物的非线性粘弹性行为相关的基础知识。这就需要一个通用的方案来对各种观察到的行为进行分类,并使用这些观察结果来挑战相关的本构方程。该研究将使用大振幅振荡剪切和机械光谱烧孔指纹识别方法相结合,提供一系列玻璃状聚合物的非线性粘弹性行为的指纹,并挑战他们对一组非线性本构关系的预测从几个领先的模型从文献。这项工作不仅表明该方法可以应用于玻璃状聚合物,而且通过选择检查具有不同程度的非均匀性的聚合物,如通过β-松弛强度估计的,该方法可以区分不同类型的非线性行为,并且原则上确定动态非均匀性的细节如何影响指纹和本构模型参数。这为聚合物非线性力学中的结构-性能关系提供了一个重要的进展。此外,这项工作提供了一个关键的评估指纹范式,目前开发的剪切变形的非线性流体,通过在非体积保持条件下进行测量,即,拉伸和压缩,以形成作为所述变形几何形状的函数的材料指纹,并将它们与剪切结果进行比较。

项目成果

期刊论文数量(12)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Modeling the Compressive Buckling Strain as a Function of the Nanocomposite Interphase Thickness in a Carbon Nanotube Sheet Wrapped Carbon Fiber Composite
  • DOI:
    10.1115/1.4044086
  • 发表时间:
    2019-10
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Xuemin Wang;T. Xu;Rui Zhang;M. J. Andrade;Pruthul Kokkada;D. Qian;Samit Roy;R. Baughman;Hongbing Lu
  • 通讯作者:
    Xuemin Wang;T. Xu;Rui Zhang;M. J. Andrade;Pruthul Kokkada;D. Qian;Samit Roy;R. Baughman;Hongbing Lu
The effect of blast overpressure on the mechanical properties of the human tympanic membrane
爆炸超压对人体鼓膜力学性能的影响
Mechanical properties of the Papio anubis tympanic membrane: Change significantly from infancy to adulthood
狒狒鼓膜的机械特性:从婴儿期到成年期发生显着变化
  • DOI:
    10.1016/j.heares.2018.10.010
  • 发表时间:
    2018
  • 期刊:
  • 影响因子:
    2.8
  • 作者:
    Liang, Junfeng;Smith, Kyle D.;Lu, Hongbing;Seale, Thomas W.;Gan, Rong Z.
  • 通讯作者:
    Gan, Rong Z.
Controllable Preparation of Ordered and Hierarchically Buckled Structures for Inflatable Tumor Ablation, Volumetric Strain Sensor, and Communication via Inflatable Antenna
用于充气肿瘤消融、体积应变传感器和通过充气天线通信的有序和分层屈曲结构的可控制备
  • DOI:
    10.1021/acsami.8b19241
  • 发表时间:
    2019
  • 期刊:
  • 影响因子:
    9.5
  • 作者:
    Wang Run;Liu Zhongsheng;Wan Guoyun;Jia Tianjiao;Zhang Chao;Wang Xuemin;Zhang Mei;Qian Dong;de Andrade Monica Jung;Jiang Nan;Yin Shougen;Zhang Rui;Feng Deqiang;Wang Weichao;Zhang Hui;Chen Hong;Wang Yinsong;Ovalle-Robles Raquel;Inoue Kanzan;Lu Hongbing;Fang
  • 通讯作者:
    Fang
Mapping the Young's modulus distribution of the human tympanic membrane by microindentation
  • DOI:
    10.1016/j.heares.2019.02.009
  • 发表时间:
    2019-07-01
  • 期刊:
  • 影响因子:
    2.8
  • 作者:
    Luo, Huiyang;Wang, Fang;Lu, Hongbing
  • 通讯作者:
    Lu, Hongbing
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Hongbing Lu其他文献

Gain by mixture-based image segmentation for virtual colonoscopy with colonic material tagging
通过基于混合的图像分割进行虚拟结肠镜检查和结肠材料标记的增益
  • DOI:
  • 发表时间:
    2007
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Lihong C. Li;Su Wang;Zigang Wang;Jing Wang;Hongbing Lu;Zhengrong Liang
  • 通讯作者:
    Zhengrong Liang
Online shopping perceived social presence research: Focal customer perspective
网上购物感知社交存在研究:焦点客户视角
Editorial for “Combined Hepatocellular‐Cholangiocarcinoma: MRI Features and Prognosis According to Risk Factors for Hepatocellular Carcinoma”
《混合性肝细胞癌》的社论:根据肝细胞癌危险因素的 MRI 特征和预后
3D finite element model for treatment of cleft lip
唇裂治疗的 3D 有限元模型
  • DOI:
  • 发表时间:
    2009
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Chun Jiao;Dongming Hong;Hongbing Lu;Jianqi Wang;Q. Lin;Zhengrong Liang
  • 通讯作者:
    Zhengrong Liang
A Feasibility Study on in-vivo X-ray Fluorescence Computed Tomography for Liver and Lungs Imaging Based on NaGdF4 Nanoparticles,
NaGdF4纳米粒子作为肝脏和肺部X射线荧光计算机断层扫描成像探针的可行性
  • DOI:
    10.1002/mp.13930
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    3.8
  • 作者:
    Wenli Zhang;Siyuan Zhang;Peng Gao;Bin Lan;Lihong Li;Xiaofeng Zhang;Liang Li;Hongbing Lu
  • 通讯作者:
    Hongbing Lu

Hongbing Lu的其他文献

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{{ truncateString('Hongbing Lu', 18)}}的其他基金

Collaborative Research: Spatial and Dynamic Heterogeneity and Nonlinear Viscoelastic Constitutive Behavior of Glasses and Their Nanocomposites as Probed by Nonlinear Spectroscopies
合作研究:非线性光谱探测玻璃及其纳米复合材料的空间和动态异质性以及非线性粘弹性本构行为
  • 批准号:
    2219347
  • 财政年份:
    2022
  • 资助金额:
    $ 20.73万
  • 项目类别:
    Standard Grant
MRI: Acquisition of a 4D Microtomography Apparatus for Nano/microstructured Materials and in-situ Nano/Micromechanics Research
MRI:购买用于纳米/微结构材料和原位纳米/微力学研究的 4D 显微断层扫描设备
  • 批准号:
    1726435
  • 财政年份:
    2017
  • 资助金额:
    $ 20.73万
  • 项目类别:
    Standard Grant
SNM: Scalable Nanomanufacturing of Carbon Nanotube Sheet Wrapped Carbon Fibers for Low Density and High Strength Composites
SNM:用于低密度和高强度复合材料的碳纳米管片包裹碳纤维的可扩展纳米制造
  • 批准号:
    1636306
  • 财政年份:
    2017
  • 资助金额:
    $ 20.73万
  • 项目类别:
    Standard Grant
I-Corps: Super noise attenuation hearing protection devices (earplugs and earmuffs) utilizing porous nanostructured materials
I-Corps:利用多孔纳米结构材料的超级噪音衰减听力保护装置(耳塞和耳罩)
  • 批准号:
    1522559
  • 财政年份:
    2015
  • 资助金额:
    $ 20.73万
  • 项目类别:
    Standard Grant
Collaborative Research: Elastic and Viscoelastic Characterization and Modeling of Polymer Based Structures for Biological Applications
合作研究:生物应用聚合物基结构的弹性和粘弹性表征和建模
  • 批准号:
    1132175
  • 财政年份:
    2011
  • 资助金额:
    $ 20.73万
  • 项目类别:
    Standard Grant
Collaborative Research: Measurements of Yield Strength and Local Viscoelastic Properties Using Nanoparticle Embedment Methods
合作研究:使用纳米颗粒嵌入方法测量屈服强度和局部粘弹性
  • 批准号:
    1132174
  • 财政年份:
    2011
  • 资助金额:
    $ 20.73万
  • 项目类别:
    Standard Grant
Collaborative Research: Characterization and Modeling of Natural Fiber Polymer Matrix Composites for Correlating Natural Fiber/Matrix Morphology with Viscoelastic Properties
合作研究:天然纤维聚合物基体复合材料的表征和建模,用于将天然纤维/基体形态与粘弹性相关联
  • 批准号:
    1031829
  • 财政年份:
    2010
  • 资助金额:
    $ 20.73万
  • 项目类别:
    Standard Grant
Collaborative Research: Synthesis, Characterization, Modelling and Simulation of Polymer Nanoencapsulated Aerogels
合作研究:聚合物纳米封装气凝胶的合成、表征、建模和模拟
  • 批准号:
    1043695
  • 财政年份:
    2010
  • 资助金额:
    $ 20.73万
  • 项目类别:
    Standard Grant
Collaborative Research: Measurements of Yield Strength and Local Viscoelastic Properties Using Nanoparticle Embedment Methods
合作研究:使用纳米颗粒嵌入方法测量屈服强度和局部粘弹性
  • 批准号:
    0928363
  • 财政年份:
    2009
  • 资助金额:
    $ 20.73万
  • 项目类别:
    Standard Grant
Collaborative Research: Synthesis, Characterization, Modelling and Simulation of Polymer Nanoencapsulated Aerogels
合作研究:聚合物纳米封装气凝胶的合成、表征、建模和模拟
  • 批准号:
    0961062
  • 财政年份:
    2009
  • 资助金额:
    $ 20.73万
  • 项目类别:
    Standard Grant

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