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https://doi.org/https://doi.org/10.32762/zr.27.1.9
Detection of a characteristic length in 2D orthotropic micropolar continuum
Damjan Jurković
; Sveučilište u Rijeci, Građevinski fakultet
*
Gordan Jelenić
; Sveučilište u Rijeci, Građevinski fakultet
Sara Grbčić Erdelj
; Sveučilište u Rijeci, Građevinski fakultet
Dragan Ribarić
; Sveučilište u Rijeci, Građevinski fakultet
Laura Grbac
; Sveučilište u Rijeci, Građevinski fakultet
Edita Papa Dukić
; Sveučilište u Rijeci, Građevinski fakultet
Nina Čeh
; Sveučilište u Rijeci, Građevinski fakultet
* Dopisni autor.
Sažetak
With the aim of obtaining several micropolar engineering parameters, a numerical and experimental analysis of an artificially generated orthotropic microstructure is performed. Young’s moduli and Poisson's ratios of the microstructure are determined using homogenisation by asymptotic analysis. Four-point bending experiments are performed on the aluminium beams with the described microstructure. The same experiments are also performed numerically. Using the previously derived analytical expression for the strains in a plane orthotropic micropolar continuum, one characteristic length is determined. This length corresponds to the characteristic bending length in the isotropic continuum and is one of the four characteristic lengths of the planar orthotropic continuum. Experimental and numerical values agree well, despite the slight scatter of the experimental results. The methodology presented here can be used for further determination of bending lengths.
Ključne riječi
orthotropic micropolar continuum; four-point bending experiments; characteristic bending length; homogenisation; numerical analysis
Hrčak ID:
324025
URI
Datum izdavanja:
18.12.2024.
Posjeta: 0 *