Date of download: 1/23/2018 Copyright © ASME. All rights reserved. From: Bifurcation Analysis of Forming Limits for an Orthotropic Sheet Metal J. Manuf. Sci. Eng. 2014;136(5):051005-051005-10. doi:10.1115/1.4027757 Figure Legend: The illustration of a uniform thin sheet metal with applied in-plane stress
Date of download: 1/23/2018 Copyright © ASME. All rights reserved. From: Bifurcation Analysis of Forming Limits for an Orthotropic Sheet Metal J. Manuf. Sci. Eng. 2014;136(5):051005-051005-10. doi:10.1115/1.4027757 Figure Legend: The comparison between the three r-values introduced bifurcation analysis and Stören–Rice bifurcation analysis with Hill's zero extension direction on left hand side
Date of download: 1/23/2018 Copyright © ASME. All rights reserved. From: Bifurcation Analysis of Forming Limits for an Orthotropic Sheet Metal J. Manuf. Sci. Eng. 2014;136(5):051005-051005-10. doi:10.1115/1.4027757 Figure Legend: The comparison between the three r-values introduced bifurcation analysis and Stören–Rice bifurcation analysis with the minimum energy principal searching algorithm on left hand side
Date of download: 1/23/2018 Copyright © ASME. All rights reserved. From: Bifurcation Analysis of Forming Limits for an Orthotropic Sheet Metal J. Manuf. Sci. Eng. 2014;136(5):051005-051005-10. doi:10.1115/1.4027757 Figure Legend: The comparison between the experimental results of Al6111-T4 from Graf and Hosford and predicted results
Date of download: 1/23/2018 Copyright © ASME. All rights reserved. From: Bifurcation Analysis of Forming Limits for an Orthotropic Sheet Metal J. Manuf. Sci. Eng. 2014;136(5):051005-051005-10. doi:10.1115/1.4027757 Figure Legend: The comparison of yield surfaces for material scenario 1 to 4
Date of download: 1/23/2018 Copyright © ASME. All rights reserved. From: Bifurcation Analysis of Forming Limits for an Orthotropic Sheet Metal J. Manuf. Sci. Eng. 2014;136(5):051005-051005-10. doi:10.1115/1.4027757 Figure Legend: The predicted forming limit results with different r-value combinations
Date of download: 1/23/2018 Copyright © ASME. All rights reserved. From: Bifurcation Analysis of Forming Limits for an Orthotropic Sheet Metal J. Manuf. Sci. Eng. 2014;136(5):051005-051005-10. doi:10.1115/1.4027757 Figure Legend: The necking angle distributions with different r-value combinations
Date of download: 1/23/2018 Copyright © ASME. All rights reserved. From: Bifurcation Analysis of Forming Limits for an Orthotropic Sheet Metal J. Manuf. Sci. Eng. 2014;136(5):051005-051005-10. doi:10.1115/1.4027757 Figure Legend: The necking band angle evolution under equibiaxial (β = 1) stretching mode with three different r-values
Date of download: 1/23/2018 Copyright © ASME. All rights reserved. From: Bifurcation Analysis of Forming Limits for an Orthotropic Sheet Metal J. Manuf. Sci. Eng. 2014;136(5):051005-051005-10. doi:10.1115/1.4027757 Figure Legend: The necking band angle evolution under equibiaxial (β = 1) stretching mode with an average r-value
Date of download: 1/23/2018 Copyright © ASME. All rights reserved. From: Bifurcation Analysis of Forming Limits for an Orthotropic Sheet Metal J. Manuf. Sci. Eng. 2014;136(5):051005-051005-10. doi:10.1115/1.4027757 Figure Legend: The comparison between the yield surface with or without r0 effect
Date of download: 1/23/2018 Copyright © ASME. All rights reserved. From: Bifurcation Analysis of Forming Limits for an Orthotropic Sheet Metal J. Manuf. Sci. Eng. 2014;136(5):051005-051005-10. doi:10.1115/1.4027757 Figure Legend: Illustration of the flow direction determined by the changed curvature of the yield surface