A Novel Diagonal-Cruciform Test Specimen to Evaluate Sheet FormabilityRui F. V. Sampaio, João P. M. Pragana, Ivo M. F. Bragança, Carlos M. A. Silva and Paulo A. F. MartinsMATEC Web Conf., 408 (2025) 01010DOI: https://doi.org/10.1051/matecconf/202540801010