Repositorio
Institucional

Tuninetti, V.

Onate, A.

Valenzuela, M.

Sepulveda, H.

Pincheira, G.

Medina, C.

Garcia-Herrera, C.

Duchene, L.

Habraken, A. M.

Characterization approaches affect asymmetric load predictions of hexagonal close-packed alloy

ELSEVIER

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T

en

The anisotropic plasticity constants of the CPB06 criterion for Ti64, previously identified with experiments performed in all three dimensions, are applied here to evaluate the effect of the direct and inverse calibration strategies of the tensile-compression asymmetry parameter k on the predictive behavior of large deformations of the hexagonal close-packed (hcp) alloy. The direct calibration strategy is based on model fitting with experimental strain hardening data up to the onset of plastic instability. The inverse calibration strategy reduces prediction errors of the load-displacement curves of both the cylindrical bar tensile and the elliptical cylinder compression tests. The results provide interesting insights into the identification of the laws modeling large deformations of hcp materials. (c) 2023 Published by Elsevier B.V.

2023

artículo original

10.1016/j.jmrt.2023.08.255

PDF

Plastic instability

Identification strategy

Tension-compression asymmetry hcp

Ciencia de Materiales

Metalurgia e Ingeniería Metalúrgica

Inestabilidad plástica

Estrategia de identificación

Asimetría tensión-compresión hcp

5028.0

5036

artículo original

versión publicada

CC BY-NC-ND 4.0

CC BY-NC-ND 4.0

acceso abierto

acceso abierto

WOS:001074003700001

2238-7854

Verde# dorado

Ciencia de Materiales

Metalurgia e Ingeniería Metalúrgica