Role of Texture and Microstructural Developments in the Forming Limit Diagrams of Family of Interstitial Free Steels

2021 ◽  
Author(s):  
Basavaraj H. Vadavadagi ◽  
H. V. Bhujle ◽  
Rajesh Kisni Khatirkar
Keyword(s):  
Forming Limit ◽  
Interstitial Free ◽  
Forming Limit Diagrams

Void Growth and Local Necking in Biaxially Stretched Sheets

1978 ◽  
Vol 100 (2) ◽  
pp. 164-169 ◽  
Author(s):  
A. Needleman ◽  
N. Triantafyllidis
Keyword(s):  
Void Growth ◽  
Plastic Material ◽  
Material Model ◽  
Forming Limit ◽  
Equivalent Thickness ◽  
Forming Limit Diagrams ◽  
Local Necking ◽  
Classical Plasticity ◽  
Porous Plastic

The role of void growth in triggering local necking in biaxially stretched sheets is investigated. A recently proposed constitutive equation for porous plastic materials is employed in conjunction with the model of localized necking introduced by Marciniak and Kuczynski. An increased initial volume concentration of voids within the incipient neck plays the role of the imperfection. The predictions of this analysis are compared with corresponding predictions based on classical plasticity theory with various types of initial inhomogeneities. It is found that the porous plastic material model predicts forming limit diagrams qualitatively in accord with experimental results. However, the results also show that any microstructural inhomogeneity that gives rise to a continually decreasing rate of hardening in the neck would be expected to predict qualitatively similar forming limit diagrams. It is also found that the hypothesis of an equivalent thickness imperfection is not necessarily appropriate for high hardening materials.

scholarly journals Role of Twinning in Texture Development and in Plastic Deformation of Hexagonal Materials

1988 ◽  
Vol 7 (4) ◽  
pp. 265-301 ◽  
Author(s):  
M. J. Philippe ◽  
C. Esling ◽  
B. Hocheid
Keyword(s):  
Plastic Deformation ◽  
Uniaxial Tension ◽  
Mechanical Twinning ◽  
Extensive Study ◽  
Texture Development ◽  
Forming Limit ◽  
Forming Limit Diagrams ◽  
Hexagonal Materials ◽  
Zr Alloys

This paper presents an extensive study of the conditions of appearance of mechanical twinning and its role in the texture development during uniaxial tension, biaxial expansion and rolling of Ti and Zr alloys.With the help of literature, the analyses are extended to alloys of Mg, Zn and Be.Finally, the influence of twinning on the shape of the forming limit diagrams and on formability is discussed for hexagonal metals.

The bending dependency of forming limit diagrams

2018 ◽  
Vol 12 (5) ◽  
pp. 815-825 ◽  
Author(s):  
Felix M. Neuhauser ◽  
Oscar Terrazas ◽  
Niko Manopulo ◽  
Pavel Hora ◽  
Chester Van Tyne
Keyword(s):  
Forming Limit ◽  
Forming Limit Diagrams

A pragmatic approach to accommodate in-plane anisotropy in forming limit diagrams

2014 ◽  
Vol 62 ◽  
pp. 5-17 ◽  
Author(s):  
Krishnaswamy Hariharan ◽  
Ngoc-Trung Nguyen ◽  
Frédéric Barlat ◽  
Myoung-Gyu Lee ◽  
Ji Hoon Kim
Keyword(s):  
Forming Limit ◽  
Pragmatic Approach ◽  
Forming Limit Diagrams ◽  
Plane Anisotropy

A dislocation-model of forming limit diagrams of FCC metal sheet with combination of cube and copper orientations

2005 ◽  
Vol 402 (1-2) ◽  
pp. 149-157 ◽  
Author(s):  
X.Y. Wen ◽  
T. Zhai ◽  
C.H. Xiao ◽  
S. Ningileri ◽  
Z. Li ◽  
...  
Keyword(s):  
Metal Sheet ◽  
Forming Limit ◽  
Dislocation Model ◽  
Forming Limit Diagrams ◽  
Fcc Metal
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