Results 51 to 60 of about 20,100 (287)

The implicit equation of a canal surface

Journal of Symbolic Computation, 2009
A canal surface is an envelope of a one parameter family of spheres. In this paper we present an efficient algorithm for computing the implicit equation of a canal surface generated by a rational family of spheres. By using Laguerre and Lie geometries, we relate the equation of the canal surface to the equation of a dual variety of a certain curve in 5-
Dohm, Marc, Zube, Severinas
openaire   +3 more sources

Dupin Cyclides as a Subspace of Darboux Cyclides

Mathematics
Dupin cyclides are interesting algebraic surfaces used in geometric design and architecture to join canal surfaces smoothly and to construct model surfaces.
Jean Michel Menjanahary, Raimundas Vidunas   +1 more
doaj   +1 more source

SCALe-invariant Integral Surfaces

, 2013
Extraction of skeletons from solid shapes has attracted quite a lot of attention, but less attention was paid so far to the reverse operation: generating smooth surfaces from skeletons and local radius information. Convolution surfaces, i.e.
Quiblier, M., Cani, M.-P., Zanni, C., Bernhardt, A.   +3 more
core   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Turbulent mixed convection within rapidly rotating heated annular cavities with an axial throughflow

St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2021
The results of eddy-resolving numerical simulation of a turbulent mixed convection in a system of three identical, rapidly rotating annular cavities are presented.
Smirnov Evgeny, Smirnov Sergei, Abramov Alexey, Galaev Sergey   +3 more
doaj   +1 more source

Numerical stability of surface implicitization

Journal of Symbolic Computation, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Josef Schicho, Ibolya Szilágyi
openaire   +2 more sources

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Implicit Integral Surfaces

, 2012
We present an implicit method for globally computing all four classic types of integral surfaces -- stream, path, streak, and time surfaces in 3D time-dependent vector fields.
Stöter, T., Theisel, H., Seidel, H. ; https://orcid.org/, Weinkauf, T.   +3 more
core   +2 more sources

Elastoplastic Integration Method of Mohr-Coulomb Criterion

Geotechnics, 2022
A new method for implicit integration of the Mohr-Coulomb non-smooth multisurface plasticity models is presented, and Koiter’s requirements are incorporated exactly within the proposed algorithm.
Tan Zhang, Songtao Lin, Hong Zheng, Yanjiang Chen   +3 more
doaj   +1 more source

Visualizing Squircular Implicit Surfaces

CoRR, 2022
proof of periodic squircle; conjecture on Schwarz P ...
openaire   +2 more sources