A physics-based constitutive model for machining simulation of Ti-6Al-4V titanium alloy
Paper i proceeding, 2023

Today, simulation of cutting processes still relies, in most cases, on the phenomenological representation of flow stress properties of workpiece materials. This investigation presents a physics-based (dislocation-based) constitutive model to simulate the flow stress properties of Ti6Al4V titanium alloy at elevated temperatures and a large range of strain rates. The Split Hopkinson Pressure Bar (SHPB) data and inverse modelling of orthogonal cutting tests are combined using a novel approach to obtain flow stress properties and to calibrate the damage and friction models. The applicability of the presented model for cutting simulation is critically discussed.

FEM

Dislocaiton-based

Ti6Al4V

Inverse identification

SHPB

Författare

Amir Malakizadi

Chalmers, Industri- och materialvetenskap, Material och tillverkning

Jannis Saelzer

Technische Universität Dortmund

Sebastian Berger

Technische Universität Dortmund

Youssef Alammari

Technische Universität Dortmund

Dirk Biermann

Technische Universität Dortmund

Procedia CIRP

22128271 (eISSN)

Vol. 117 335-340

19th CIRP Conference on Modeling of Machining Operations, CMMO 2023
Karlsruhe, Germany,

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VINNOVA (2020-05179), 2021-03-22 -- 2024-11-20.

Ämneskategorier

Teknisk mekanik

Metallurgi och metalliska material

DOI

10.1016/j.procir.2023.03.057

Mer information

Senast uppdaterat

2023-07-21