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作者:

Lei, Jun (Lei, Jun.) | Sun, Yue (Sun, Yue.) | Wang, Lin (Wang, Lin.)

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摘要:

In this paper, a peridynamic differential operator (PDDO) method is developed to analyze the static and dynamic responses of size-dependent elastic structures in the frame of a consistent couple stress theory (CCST). The displacement governing equations together with the boundary conditions of the couple-stress static problems are transformed from the local differential form to the nonlocal integral form through a fourth-order PDDO and then solved by a meshfree scheme. For dynamic cases, the time-domain problems are first transformed into frequency domain by Fourier transform, then solved by the PDDO meshless method in the frequency domain. The timedomain results are finally obtained by using an exponential window method (EWM). The size effects on the static and dynamic responses of some typical elastic problems are investigated by the developed PDDO method. A very high level of computational accuracy is achieved by comparing with the analytical solutions and the existing numerical results.

关键词:

Peridynamic differential operator Exponential window method Consistent couple stress theory Dynamic response Size effect Frequency domain

作者机构:

  • [ 1 ] [Lei, Jun]Beijing Univ Technol, Fac Mat & Mfg, Dept Engn Mech, Beijing 100124, Peoples R China
  • [ 2 ] [Sun, Yue]Beijing Univ Technol, Fac Mat & Mfg, Dept Engn Mech, Beijing 100124, Peoples R China
  • [ 3 ] [Wang, Lin]Beijing Univ Technol, Fac Mat & Mfg, Dept Engn Mech, Beijing 100124, Peoples R China

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来源 :

ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS

ISSN: 0955-7997

年份: 2023

卷: 156

页码: 20-33

3 . 3 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:19

被引次数:

WoS核心集被引频次: 9

SCOPUS被引频次: 9

ESI高被引论文在榜: 0 展开所有

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中文被引频次:

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