Innovation of the “Cut-Clamp-Play” concept for robust and efficient sheet metal material characterization

Maček, Andraž (avtor), Starman, Bojan (avtor), Halilovič, Miroslav (avtor), Pierron, Fabrice (avtor), Lava, Pascal (avtor), Coppieters, Sam (avtor)

Material Testing 2.0 (MT2.0) couples full‑field deformation measurements (Digital Image Correlation, DIC) with inverse identification methods (Virtual Fields Method, VFM) to extract constitutive parameters from a small number of heterogeneous experiments. This paper presents the Cut‑Clamp‑Play concept: an integrated industrial MT2.0 solution that unifies specimen design, automated testing hardware, and a computationally efficient VFM identification chain to deliver fast, user‑friendly sheet‑metal characterization. A perforated cruciform specimen is optimized for parameter identifiability of the Yld2000‑2d anisotropic yield function and used in a single biaxial test. A working prototype has been built at KU Leuven and used to collect representative DIC data; the measured displacement/strain response is double‑symmetric, confirming correct mechanical operation. Projected and early prototype results indicate that the Cut‑Clamp‑Play approach can reduce operator actions by roughly 70% and produce identification results within one hour for typical sheet‑metal cases, while further work is required to make the fully automated “Play” stage robust for industrial deployment.

• Jezik: Angleški jezik
• Ključne besede: digital image correlation, material characterization, plastic anisotropy, virtual fields method
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.08 - Objavljeni znanstveni prispevek na konferenci
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2026
• Št. strani: 6 str.
• Številčenje: Vol. 1047
• PID: 20.500.12556/RUL-182257
• UDK: 621.7:004.9
• ISSN pri članku: 1662-9795
• DOI: 10.4028/p-TF8dpD
• COBISS.SI-ID: 277067267
• Datum objave v RUL: 05.05.2026

Gradivo je del revije

• Naslov: Key engineering materials
• Skrajšan naslov: Key eng. mater.
• Založnik: Trans Tech Publications
• ISSN: 1662-9795
• COBISS.SI-ID: 13565723

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
• Ključne besede: korelacija digitalnih slik, materialna karakterizacija, MT2.0, plastična anizotropija, metoda virtualnih polj

Projekti

• Financer: Drugi - Drug financer ali več financerjev
• Številka projekta: HBC.2024.0807
• Naslov: Cut-Clamp-Play