Pregled bibliografske jedinice broj: 354237
Evaluation of the Poisson's ratio from The 3D laser scanning data
Evaluation of the Poisson's ratio from The 3D laser scanning data // Proceedings of 25th Danubia-Adria Symposium on Advances in Experimental Mechanics / Daniel., M ; Holly, S. ; Ruzicka, M. (ur.).
Prag: Chech Technical University in Prague, 2008. str. 135-136 (predavanje, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 354237 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Evaluation of the Poisson's ratio from The 3D laser scanning data
Autori
Krstulović-Opara, Lovre ; Vesenjak, Matej ; Marendić, Petar ; Ren, Zoran ; Domazet, Željko
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Proceedings of 25th Danubia-Adria Symposium on Advances in Experimental Mechanics
/ Daniel., M ; Holly, S. ; Ruzicka, M. - Prag : Chech Technical University in Prague, 2008, 135-136
ISBN
978-80-01-04162-8
Skup
25th Danubia-Adria Symposium on Advances in Experimental Mechanics
Mjesto i datum
České Budějovice, Češka Republika; Český Krumlov, Češka Republika, 24.09.2008. - 27.09.2008
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Poisson's ratio; volume changes; 3D scanning
Sažetak
Poisson's ratio represents the relation between lateral contraction/expansion and longitudinal extension/contraction of three dimensional bodies subjected to tensile/compressive loading. The Poisson's ratio can usually be evaluated from one dimensional tensile/compressive testing of cylindrical specimens.The measuring equipment usually consist of one dimensional mechanical calipers and micrometers, electronic extensometers or more advanced measuring techniques based on the photogrammetry. Such a direct contact measuring approach is not well situated for soft specimen where small contact force of measuring device significantly changes the specimen's dimensions and consequently influences the results. The specimen's cross section is often not cylindrical or loses the cylindrical shape during the deformation. In presented paper a more general approach based on a three-dimensional laser scanning technique and CAD model reconstructoin is reported. Three-dimensional laser scanning technique and 3D reconstruction based on the volumetric specimen changes enable more accurate evaluation of Poisson's ratio for soft materials. The CAD surface reconstruction enables the exclusion of zones near clamping jaws or compression plates that are influenced by the clamping forces (in tension) or friction (in compression).
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo
POVEZANOST RADA
Projekti:
023-0231744-1745 - Pogonska čvrstoća materijala i konstrukcija (Domazet, Željko, MZOS ) ( CroRIS)
Ustanove:
Fakultet elektrotehnike, strojarstva i brodogradnje, Split
