Title: Static and Dynamic Analysis of Strain Gradient Planar Trusses
Author(s): Tsiatas GC, Charalampakis AE, Giannakopoulos AE, Tsopelas, P.
Journal: Buildings
Publisher: MDPI
Volume: 14
Issue: 12
Pages: 4031
Date: 2024
DOI: 10.3390/buildings14124031
Language: English

[abstract]

This paper examines the static and dynamic responses of strain gradient planar trusses. Classical elasticity (CE) theory lacks a material microstructural length parameter in its governing equations, making it insufficient to capture size-dependent effects. To address this limitation, higherorder continuum theories—such as micropolar, couple-stress, and strain gradient elasticity (SGE) theories—are essential. In this study, gradient elasticity theory is extended to describe the behavior of planar trusses by incorporating explicit internal length scales as additional material parameters. A key finding of this research is that the inclusion of the microstructural parameter results in a stiffening effect in both static and dynamic analyses.

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