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TECHNICAL PAPERS

Representing the Effect of Crystallographic Texture on the Anisotropic Performance Behavior of Rolled Aluminum Plate

[+] Author and Article Information
M. P. Miller, N. R. Barton

Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853

J. Eng. Mater. Technol 122(1), 10-17 (Jun 15, 1999) (8 pages) doi:10.1115/1.482759 History: Received February 22, 1999; Revised June 15, 1999
Copyright © 2000 by ASME
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References

Figures

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The ODF at the 12 plane of the 7075 plate depicted on slices through the fundamental region of orientation space parameterized with the Rodrigues vector defined in Eq. (1). The slices were taken normal to the plate normal direction. An ODF value of 2.42 corresponds to a random texture.
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(a) The stress strain data from the tensile tests conducted on the 7075 plate. The angle, ϕ, is the angle between the specimen axis and the rolling direction. (b) A close-up of data focusing on the elastic/elastic-plastic transition.
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The slopes of the stress-strain data, ϴ, in the transition region
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The hysteresis loops for the first 5 cycles of the fully reversed cyclic experiment conducted on the 7075 plate in the rolling direction at a εa=0.01
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The stress amplitude, σa versus the strain amplitude, εa, for the cyclic experiments conducted on the 7075 plate
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The simulations of the tensile experiments using the upper bound linking assumption. Also depicted are the HD, TD, and ϕ=45° data, along with a simulation of the TD experiment with the slip system hardening neglected (ġ=0 in Eq. (3)).
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The simulations of the tensile experiments using the lower bound linking assumption. Also depicted are the RD, TD, and ϕ=45° data, along with the simulation of the TD experiment with slip system hardening neglected (ġ=0 in Eq. (3)).
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The simulations of the tensile experiments using the finite element formulation. Also depicted are the RD, TD, and ϕ=45° data along with the simulation of the TD experiment with slip system hardening neglected (ġ=0 in Eq. (3)).
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The finite element simulations of the RD and TD experiments employing initial element aspect ratios of RD:TD:ND=1:1:1 (cube) and RD:TD:ND=16:4:1
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The slopes of the stress-strain curve, ϴ, predicted by the upper bound model. Also shown are the RD, TD and ϕ=45° data.
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The slopes of the stress-strain curve, ϴ, predicted by the lower bound model. Also shown are the RD, TD and ϕ=45° data.
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The slopes of the stress-strain curve, Θ, predicted by the finite element model employing cubic elements. Also shown are the RD, TD and ϕ=45° data.

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