Publication

Finite elements in task-level animation

Daniel Thalmann, Nadia Magnenat-Thalmann
1995
Journal Articles

Abstract

This paper addresses the problem of grasping rigid and deformable objects in a task-level animation system. After an introduction on task planning and grasping, it emphasizes the use of FEM for modelling both elastically and plastically deformations of objects, and impacts with or without penetration between deformable objects. A numerical method based on finite element theory allows us to take into account the active forces of the fingers on the object and the reactive forces of the object on the fingers

Official source

https://infoscience.epfl.ch/entities/publication/2064ef06-33cb-486e-b3a3-e7923deae451

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Daniel Thalmann, Nadia Magnenat-Thalmann
1995
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/2064ef06-33cb-486e-b3a3-e7923deae451

About this result

Related concepts (23)

Finite strain theory

In continuum mechanics, the finite strain theory—also called large strain theory, or large deformation theory—deals with deformations in which strains and/or rotations are large enough to invalidate assumptions inherent in infinitesimal strain theory. In this case, the undeformed and deformed configurations of the continuum are significantly different, requiring a clear distinction between them. This is commonly the case with elastomers, plastically-deforming materials and other fluids and biological soft tissue.

Physical object

In common usage and classical mechanics, a physical object or physical body (or simply an object or body) is a collection of matter within a defined contiguous boundary in three-dimensional space. The boundary surface must be defined and identified by the properties of the material, although it may change over time. The boundary is usually the visible or tangible surface of the object. The matter in the object is constrained (to a greater or lesser degree) to move as one object.

Deformation (physics)

In physics and continuum mechanics, deformation is the transformation of a body from a reference configuration to a current configuration. A configuration is a set containing the positions of all particles of the body. A deformation can occur because of external loads, intrinsic activity (e.g. muscle contraction), body forces (such as gravity or electromagnetic forces), or changes in temperature, moisture content, or chemical reactions, etc. Strain is related to deformation in terms of relative displacement of particles in the body that excludes rigid-body motions.

Related publications (32)

Finite elements in task-level animation

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