title: A combined experimental-numerical approach for determining mechanical properties of aluminum subjects to nanoindentation.
abstract: A crystal plasticity finite element method (CPFEM) model has been developed to investigate the mechanical properties and micro-texture evolution of single-crystal aluminum induced by a sharp Berkovich indenter. The load-displacement curves, pile-up patterns and lattice rotation angles from simulation are consistent with the experimental results. The pile-up phenomenon and lattice rotation have been discussed based on the theory of crystal plasticity. In addition, a polycrystal tensile CPFEM model has been established to explore the relationship between indentation hardness and yield stress. The elastic constraint factor C is slightly larger than conventional value 3 due to the strain hardening.
authors.affiliation: School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
authors.forename: Mao
authors.initials: M
authors.lastname: Liu
authors.affiliation: School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
authors.forename: Cheng
authors.initials: C
authors.lastname: Lu
authors.affiliation: School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
authors.forename: Kiet Anh
authors.initials: KA
authors.lastname: Tieu
authors.affiliation: School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
authors.forename: Ching-Tun
authors.initials: CT
authors.lastname: Peng
authors.affiliation: Electron Microscope Unit, The University of New South Wales, Sydney, NSW 2052, Australia.
authors.forename: Charlie
authors.initials: C
authors.lastname: Kong