What is it about?
The work describes a numerical model of chip formation and fracturing using damage mechanics based on fracture mechanics parameters. Since the intention was to show that fracturing in machining chips is due to localized damage, thermal effects were left out. Naturally in a full model, temperature will be included.
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Why is it important?
The correct description on the way machining chips periodically break is essential in describing machinability. The present work provides a model for this phenomenon and shows that this periodic fracturing can be obtained without resorting to thermal softening effects.
Perspectives
This is the first published work of Juan Manuel Costa Miscione, who is finishing his MSc dissertation at the Escola Politecnica da USP. Frequently we find good students, which impresses us with the quality of their work. This is the case of Juan.
Professor Claudio Geraldo Schön
Universidade de Sao Paulo Campus da Capital
Read the Original
This page is a summary of: A ductile damage evolution model for the simulation of machining processes in materials with limited ductility, Engineering Fracture Mechanics, June 2022, Elsevier,
DOI: 10.1016/j.engfracmech.2022.108602.
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