Halsey E. Ostergaard

ORCID: 0000-0003-3585-0956
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About
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Research Areas
  • Additive Manufacturing Materials and Processes
  • Additive Manufacturing and 3D Printing Technologies
  • Titanium Alloys Microstructure and Properties
  • High Entropy Alloys Studies
  • Welding Techniques and Residual Stresses
  • Fatigue and fracture mechanics
  • Advanced materials and composites
  • Glass properties and applications
  • High Temperature Alloys and Creep
  • Metal and Thin Film Mechanics
  • Nuclear Materials and Properties
  • Microstructure and mechanical properties
  • Metal Alloys Wear and Properties
  • Metallic Glasses and Amorphous Alloys
  • Metallurgy and Material Forming
  • Aluminum Alloy Microstructure Properties

UNSW Sydney
2019-2022

The University of Sydney
2022

Abstract This study presents incremental finite element computations of creep‐fatigue crack growth in Alloy 718 at air. is representative creep‐brittle materials, which viscoplastic deformation restricted near the tip a growing crack. The predict using unique combination an irreversible cohesive zone formulation and strain gradient material model based on Kocks–Mecking formulation. Cohesive damage parameters are estimated sustained loading constant‐amplitude cyclic experiments. Computations...

10.1111/ffe.13788 article EN cc-by-nc Fatigue & Fracture of Engineering Materials & Structures 2022-07-15
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