Damage characterization and modeling of a 7075-T651 aluminum plate

J. B. Jordon, M. F. Horstemeyer, K. Solanki, J. D. Bernard, J. T. Berry, T. N. Williams

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


In this paper, the damage-induced anisotropy arising from material microstructure heterogeneities at two different length scales was characterized and modeled for a wrought aluminum alloy. Experiments were performed on a 7075-T651 aluminum alloy plate using sub-standard tensile specimens in three different orientations with respect to the rolling direction. Scanning electron microscopy was employed to characterize the stereology of the final damage state in terms of cracked and or debonded particles. A physically motivated internal state variable continuum model was used to predict fracture by incorporating material microstructural features. The continuum model showed good comparisons to the experimental data by capturing the damage-induced anisotropic material response. Estimations of the mechanical stress-strain response, material damage histories, and final failure were numerically calculated and experimentally validated thus demonstrating that the final failure state was strongly dependent on the constituent particle morphology.

Original languageEnglish (US)
Pages (from-to)169-178
Number of pages10
JournalMaterials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Issue number1-2
StatePublished - Dec 15 2009
Externally publishedYes


  • Aluminum
  • Anisotropy
  • Damage
  • Microstructure

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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