Justification for a 2D versus 3D fingertip finite element model during static contact simulations

Gregor Harih, Mitsunori Tada and Bojan Dolšak

Computer Methods in Biomechanics and Biomedical Engineering, 2016, vol. 19, issue 13, 1409-1417

Abstract: The biomechanical response of a human hand during contact with various products has not been investigated in details yet. It has been shown that excessive contact pressure on the soft tissue can result in discomfort, pain and also cumulative traumatic disorders. This manuscript explores the benefits and limitations of a simplified two-dimensional vs. an anatomically correct three-dimensional finite element model of a human fingertip. Most authors still use 2D FE fingertip models due to their simplicity and reduced computational costs. However we show that an anatomically correct 3D FE fingertip model can provide additional insight into the biomechanical behaviour. The use of 2D fingertip FE models is justified when observing peak contact pressure values as well as displacement during the contact for the given studied cross-section. On the other hand, an anatomically correct 3D FE fingertip model provides a contact pressure distribution, which reflects the fingertip’s anatomy.

Date: 2016
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DOI: 10.1080/10255842.2016.1146712

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