A comparative study of indentation size effect models for different materials.

ABSTRACT: The phenomenon of indentation size effect (ISE) has received great attention in aerospace, nuclear power, microelectronics and medicine. Although researchers have proposed various ISE models, these models often involve different form and number of parameters that can make our wonder which is the best in existed ISE models. Herein, three types of ISE test data, namely, normal ISE, reverse ISE and transition of normal to reverse ISE, are used to evaluate the sixteen ISE models. The comparatively study indicates that Hou-Jennet(H-J), Nix-Gao-Feng (N-G-Fs), Nix-Gao-Haušild (N-G-H), Nix-Gao-Abu Al-Rub (N-G-A) and Nix-Gao-Qius (N-G-Qs) models can accurately predict the normal ISE. The reason for this is that the friction stress that is not related to dislocation activities or the indentation siz

SUBMITTER: Wang P 

PROVIDER: S-EPMC11358371 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature