Three-dimensional dynamic finite element and experimental models for drilling processes

• Type: Article in International Scientific Journal
• Date: 2018

Authors

Maria G. Fernandes (Author) Other; Elza M. Fonseca (Author) Other; Renato Natal Jorge (Author) FEUP

Journal

Title: Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications

Vol. 232 No. 1

Pages: 35-43

ISSN: 1464-4207

Publisher: SAGE

Indexing

ISI Web of Knowledge - 14 Citations

Scopus - 17 Citations

INSPEC

Other information

Authenticus ID: P-00K-WJQ

DOI: 10.1177/1464420715609363

Abstract (EN): The main goal of this paper is to assess the mechanical damage in solid rigid foam materials with similar mechanical properties to the human bone induced by the cutting parameters. In the present study, a three-dimensional dynamic finite element model was developed to simulate the drilling process in solid rigid foam materials and it was validated with experimental results. Using an explicit dynamic numerical simulation, it is possible to obtain large structural deformation with high load intensity in short time frame. The developed model is used to study the effects of different high intensity loads distribution in the solid rigid foam materials. Laboratory tests were produced using biomechanical test blocks instrumented with strain gauges in different surface positions during the drilling process. The comparison between the numerical and the experimental results enables the evaluation and improvements of the cutting process. It was concluded when the feed-rate is higher, the stresses and strains in the solid rigid foam material are lower. The developed numerical model proved to be a great tool in this kind of analysis and available to use in forthcoming tests.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9