Edge Fracture Prediction Using Uncoupled Ductile Fracture Models for DP780 Sheet.

Autor:	Mu, Lei, Wang, Yuan, Zang, Yong, Araujo Stemler, Pedro
Předmět:	DUCTILE fractures ENERGY consumption FORMING limit diagrams (Metalwork) SHEAR zones NUMERICALLY controlled milling-machines
Zdroj:	Journal of Failure Analysis & Prevention; Apr2017, Vol. 17 Issue 2, p321-329, 9p
Abstrakt:	This paper is a contribution to the prediction of edge fracture behavior using uncoupled ductile fracture models. A fully integrated simulation framework for the edge fracture prediction is proposed with the shear-induced pre-damage considered. User-defined material subroutines are coded with uncoupled ductile fracture models (Lou-Huh, Oh, Brozzo) incorporated, which are calibrated using the fracture strains of various loading paths. A series of 3D numerical simulations are performed and compared with the results of hole-expansion tests. The effects of pre-damage field and fracture models are analyzed and discussed. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
Externí odkaz:	Zobrazit plný text záznamu Full text from SpringerLink