• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

几何不完美GRC梁的非线性热机械低速冲击行为

Nonlinear Thermomechanical Low-Velocity Impact Behaviors of Geometrically Imperfect GRC Beams.

作者信息

Zhang Tao, Li Qiang, Mao Jia-Jia, Zha Chunqing

机构信息

Beijing Key Laboratory of High Dynamic Navigation Technology, Beijing Information Science & Technology University, Beijing 100192, China.

Beijing Institute of Control & Electronic Technology, Beijing 100038, China.

出版信息

Materials (Basel). 2024 Dec 11;17(24):6062. doi: 10.3390/ma17246062.

DOI:10.3390/ma17246062
PMID:39769662
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11677038/
Abstract

This paper studies the thermomechanical low-velocity impact behaviors of geometrically imperfect nanoplatelet-reinforced composite (GRC) beams considering the von Kármán nonlinear geometric relationship. The graphene nanoplatelets (GPLs) are assumed to have a functionally graded (FG) distribution in the matrix beam along its thickness, following the X-pattern. The Halpin-Tsai model and the rule of mixture are employed to predict the effective Young modulus and other material properties. Dividing the impact process into two stages, the corresponding impact forces are calculated using the modified nonlinear Hertz contact law. The nonlinear governing equations are obtained by introducing the von Kármán nonlinear displacement-strain relationship into the first-order shear deformation theory and dispersed via the differential quadrature (DQ) method. Combining the governing equation of the impactor's motion, they are further parametrically solved by the Newmark-β method associated with the Newton-Raphson iterative process. The influence of different types of geometrical imperfections on the nonlinear thermomechanical low-velocity impact behaviors of GRC beams with varying weight fractions of GPLs, subjected to different initial impact velocities, are studied in detail.

摘要

本文考虑冯·卡门非线性几何关系，研究了几何形状不完善的纳米片增强复合材料（GRC）梁的热机械低速冲击行为。假设石墨烯纳米片（GPLs）在基体梁中沿其厚度方向呈功能梯度（FG）分布，遵循X型模式。采用哈尔平 - 蔡模型和混合法则预测有效杨氏模量及其他材料性能。将冲击过程分为两个阶段，使用修正的非线性赫兹接触定律计算相应的冲击力。通过将冯·卡门非线性位移 - 应变关系引入一阶剪切变形理论得到非线性控制方程，并通过微分求积（DQ）方法进行离散。结合冲击器运动的控制方程，通过与牛顿 - 拉夫逊迭代过程相关联的纽马克 - β方法进一步对其进行参数求解。详细研究了不同类型的几何缺陷对具有不同GPLs重量分数、承受不同初始冲击速度的GRC梁非线性热机械低速冲击行为的影响。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/7f5c65b3c264/materials-17-06062-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/b642ba42d3e2/materials-17-06062-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/b3ed844f93de/materials-17-06062-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/79ffe92463fc/materials-17-06062-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/8b3ec2abc91a/materials-17-06062-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/87fd0b621880/materials-17-06062-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/5a146de7dc8d/materials-17-06062-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/47a40cac7fee/materials-17-06062-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/228a7f4a00bc/materials-17-06062-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/7f5c65b3c264/materials-17-06062-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/b642ba42d3e2/materials-17-06062-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/b3ed844f93de/materials-17-06062-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/79ffe92463fc/materials-17-06062-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/8b3ec2abc91a/materials-17-06062-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/87fd0b621880/materials-17-06062-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/5a146de7dc8d/materials-17-06062-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/47a40cac7fee/materials-17-06062-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/228a7f4a00bc/materials-17-06062-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1a12/11677038/7f5c65b3c264/materials-17-06062-g009.jpg

相似文献

1
Nonlinear Thermomechanical Low-Velocity Impact Behaviors of Geometrically Imperfect GRC Beams.几何不完美GRC梁的非线性热机械低速冲击行为
Materials (Basel). 2024 Dec 11;17(24):6062. doi: 10.3390/ma17246062.
2
Bending and Elastic Vibration of a Novel Functionally Graded Polymer Nanocomposite Beam Reinforced by Graphene Nanoplatelets.一种由石墨烯纳米片增强的新型功能梯度聚合物纳米复合材料梁的弯曲和弹性振动
Nanomaterials (Basel). 2019 Nov 26;9(12):1690. doi: 10.3390/nano9121690.
3
Free and Forced Vibration Analyses of Functionally Graded Graphene-Nanoplatelet-Reinforced Beams Based on the Finite Element Method.基于有限元法的功能梯度石墨烯纳米片增强梁的自由振动和强迫振动分析
Materials (Basel). 2022 Sep 4;15(17):6135. doi: 10.3390/ma15176135.
4
Thermal buckling and postbuckling of functionally graded multilayer GPL-reinforced composite beams on nonlinear elastic foundations.非线性弹性地基上功能梯度多层GPL增强复合材料梁的热屈曲和后屈曲
Heliyon. 2023 Aug 28;9(9):e19549. doi: 10.1016/j.heliyon.2023.e19549. eCollection 2023 Sep.
5
Free Vibration of Functionally Graded Graphene Platelets Reinforced Magnetic Nanocomposite Beams Resting on Elastic Foundation.基于弹性基础的功能梯度石墨烯薄片增强磁性纳米复合材料梁的自由振动
Nanomaterials (Basel). 2020 Nov 3;10(11):2193. doi: 10.3390/nano10112193.
6
Vibration and Buckling Characteristics of Functionally Graded Graphene Nanoplatelets Reinforced Composite Beams with Open Edge Cracks.具有开口边缘裂纹的功能梯度石墨烯纳米片增强复合材料梁的振动和屈曲特性
Materials (Basel). 2019 Apr 30;12(9):1412. doi: 10.3390/ma12091412.
7
Free Vibration Analysis of Spinning Sandwich Annular Plates with Functionally Graded Graphene Nanoplatelet Reinforced Porous Core.具有功能梯度石墨烯纳米片增强多孔芯的旋转夹层环形板的自由振动分析
Materials (Basel). 2022 Feb 11;15(4):1328. doi: 10.3390/ma15041328.
8
Wave Propagation in Rotating Functionally Graded Microbeams Reinforced by Graphene Nanoplatelets.石墨烯纳米片增强的旋转功能梯度微梁中的波传播
Molecules. 2021 Aug 25;26(17):5150. doi: 10.3390/molecules26175150.
9
State-Space Formulation for Buckling and Free Vibration of Axially Functionally Graded Graphene Reinforced Nanocomposite Microbeam under Axially Varying Loads.轴向变载荷作用下轴向功能梯度石墨烯增强纳米复合微梁屈曲和自由振动的状态空间公式
Materials (Basel). 2024 Mar 11;17(6):1296. doi: 10.3390/ma17061296.
10
Large Amplitude Vibration of FG-GPL Reinforced Conical Shell Panels on Elastic Foundation.弹性基础上功能梯度-石墨烯增强型圆锥壳板的大幅振动
Materials (Basel). 2023 Sep 3;16(17):6056. doi: 10.3390/ma16176056.

本文引用的文献

1
Enhanced mechanical properties of nanocomposites at low graphene content.在低石墨烯含量下提高纳米复合材料的机械性能。
ACS Nano. 2009 Dec 22;3(12):3884-90. doi: 10.1021/nn9010472.
2
Electric field effect in atomically thin carbon films.原子级薄碳膜中的电场效应。
Science. 2004 Oct 22;306(5696):666-9. doi: 10.1126/science.1102896.