Sensitivity of Simulated Anisotropy to Initial Texture Definitions

Conference · Sun Aug 01 04:00:00 EDT 1999

OSTI ID:761119

Necker, C T ^[1]; Tome, C N; Jean-Prost, F; Korzekwa, D A

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1. Los Alamos National Laboratory

Free compression tests were performed on 0.040 inch thick 5754 aluminum sheet stock producing a slight in-plane anisotropy. A visco-plastic self-consistent (VPSC) deformation modeling code was used to model the mechanical properties and resultant deformation textures. Calculations using a discretized description of the initial texture simulated the deformation texture very closely. Simulation of the mechanical properties were also captured nicely with one exception. The direction of simulated in-plane anisotropy was reversed from the experimental results. Simulation of the impact of various texture components on the anisotropy indicted that the shift of texture toward stronger brass, {l_brace}110{r_brace}<112>, and Goss, {l_brace}110{r_brace}<001>, components led to the reversal of anisotropy. The simulated deformation texture was more intense than the experimental texture in the brass and Goss positions. This result suggests that the more intense simulated texture components may be responsible for the reversal of an isotropy.

• Research Organization: Los Alamos National Lab., NM (US)
• Sponsoring Organization: USDOE Office of Defense Programs (DP) (US)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 761119
• Report Number(s): LA-UR-99-2724
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
ALUMINUM
ANISOTROPY
BRASS
COMPRESSION
DEFORMATION
ISOTROPY
MECHANICAL PROPERTIES
SENSITIVITY
SIMULATION
SIMULATIONS
TEXTURE
TEXTURE COMPONENTS