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Accurate real-time complex cutting in finite element modeling

Lookup NU author(s): Olivia Xin, Pieran Marris, Ana Mihut, Dr Gary Ushaw, Dr Graham Morgan

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Abstract

© Copyright 2018 by SCITEPRESS - Science and Technology Publications, Lda. All rights reserved. This paper presents a real-time method for enacting accurate cutting of thin materials while retaining the physical accuracy of the underlying deformable material model. Our primary contribution is to offer a flexible real-time solution that can allow accurate cuts, re-cuts, curved cuts, sectioning (cutting out) on a deformable FEM model. Further contributions include improved handling of mesh element resizing after cutting for increasing material stability while balancing such resizing against real-time requirements. In this manner, we can represent precise cut incision (which may be curved or irregular) by subdividing mesh elements locally (at the cut point) while negating inappropriate (ill-shaped) elements with real-time level computational overhead and so avoiding modeling instabilities efficiently. We present the results of our solution that show the accuracy of the cutting method and illustrate timings for our optimised approach demonstrating its real-time qualities.


Publication metadata

Author(s): Xin T, Marris P, Mihut A, Ushaw G, Morgan G

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2018)

Year of Conference: 2018

Pages: 183-190

Online publication date: 01/02/2018

Acceptance date: 30/11/2017

Publisher: SciTePress

URL: https://doi.org/10.5220/0006542801830190

DOI: 10.5220/0006542801830190

Library holdings: Search Newcastle University Library for this item

ISBN: 9789897582875


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