Flat specimen shape recognition based on full-field optical measurements and registration using mapping error minimization method

Maček, Andraž (avtor), Urevc, Janez (avtor), Halilovič, Miroslav (avtor)

In the paper, an alignment methodology of finite element and full-field measurement data of planar specimens is presented. The alignment procedure represents an essential part of modern material response characterisation using heterogeneous strain-field specimens. The methodology addresses both the specimen recognition from a measurement`s image and the alignment procedure and is designed to be applied on a single measurement system. This is essential for its practical application because both processes, shape recognition and alignment, must be performed only after the specimen is fully prepared for the digital image correlation (DIC) measurements (white background and black speckles) and placed into a testing machine. The specimen can be observed with a single camera or with a multicamera system. The robustness of the alignment method is presented on a treatment of a specimen with a metamaterial-like structure and compared with the well-known iterative closest point (ICP) algorithm. The performance of the methodology is also demonstrated on a real DIC application.

• Jezik: Angleški jezik
• Ključne besede: full-field measurements, digital image correlation, specimen shape recognition, surface registration, iterative closest point
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2021
• Št. strani: Str. 203-213, SI 29
• Številčenje: Vol. 67, no. 5
• PID: 20.500.12556/RUL-160891-bb0ca5c8-fac0-581c-319b-08adcbafae11
• UDK: 539.37:004.932(045)
• ISSN pri članku: 0039-2480
• DOI: 10.5545/sv-jme.2021.7111
• COBISS.SI-ID: 65014787
• Datum objave v RUL: 05.09.2024

Gradivo je del revije

• Naslov: Strojniški vestnik
• Skrajšan naslov: Stroj. vestn.
• Založnik: Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Naslov: Prepoznava oblike planih preizkušancev z uporabo optičnih metod merjenja celotnih polj deformacij in poravnava oblike z uporabo minimizacije odstopanja preslikave
• Ključne besede: meritve polja deformacij, korelacija digitalnih slik, prepoznava oblike preizkušanca, poravnava oblik, inverzna identifikacija, heterogeno polje deformacij

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0263
• Naslov: Mehanika v tehniki