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Deformable curve and surface finite-elements for free-form shape design

Open access
Celniker, George, Gossard, Dave·1991·Proceedings of the 18th annual conference on Computer graphics and interactive techniques

Abstract

The finite element method is applied to generate primitives that build continuous deformable shapes designed to support a new free-form modeling paradigm. The primitives autonomously deform to minimize an energy functional subject to user controlled geometric constraints and loads. The approach requires less user input than conventional free-form modeling approaches because the shape can be parameterized independently of the number of degrees of freedom needed to describe the shape.Both a curve and a surface finite element are developed. The properties of these geometric primitives have been engineered to support an interactive three phase approach for defining very fair free-form shapes as found in automobiles, ship hulls and car bodies. The shape's character lines or folds and edges are defined with deformable curve segments. These character lines are then "skinned" with a deformable surface. The final shape is sculpted interactively by applying loads to the surface to control the surface shape between character lines. Shapes created with this technique enjoy the advantage that they are already meshed for further finite element analysis.

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Metadata

Authors
Celniker, G., & Gossard, D.
Venue
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
Publisher
ACM
Published
1991-07
Pages
257-266
OpenAlex
W2005703344
Cited by
340
References
8
FWCI
19.58
Type
conference paper
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Deformable curve and surface finite-elements for free-form shape design. https://app.cochat.ai/papers/10.1145/122718.122746
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Celniker, G., & Gossard, D. (1991). Deformable curve and surface finite-elements for free-form shape design. Proceedings of the 18th annual conference on Computer graphics and interactive techniques. https://doi.org/10.1145/122718.122746

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.