Results 41 to 50 of about 6,981,402 (189)

A new smooth contact element: 3D diffuse contact element [PDF]

International Journal for Simulation and Multidisciplinary Design Optimization, 2008
Many difficulties due to geometrical and material non-linearities arise when dealing with numerical simulation of contact problems. Within a finite element context, the contact interface is usually represented by a piecewise differentiable surface ...
Chamoret D., Rassineux A., Bergheau J. M.   +2 more
doaj   +1 more source

CONTACT PROBLEM ON TORSION OF TRANSVERSELY ISOTROPIC ELASTIC HALF-SPACE WITH INHOMOGENEOUS TRANSVERSELY ISOTROPIC COATING BY ROUND DIE

Advanced Engineering Research, 2013
An axisymmetric contact problem of the elasticity theory on the torsion of the transversely isotropic half-space with the inhomogeneous coating by the round die is considered.
Andrey Sergeyevich Vasilyev, Evgeny Valeryevich Sadyrin   +1 more
doaj  

A sensitivity analysis for frictionless contact problems

Computer Assisted Methods in Engineering and Science, 2023
A sensitivity analysis method for elasto-plastic contact problems with large deformation is developed based on two contact constraint methods, i.e., the Lagrange multiplier and penalty methods.
Xian Chen, Masahiko Mori, Toshiaki Hisada   +2 more
doaj  

Formaldehyde-releasers: relationship to formaldehyde contact allergy. Contact allergy to formaldehyde and inventory of formaldehyde-releasers [PDF]

, 2009
This is one of series of review articles on formaldehyde and formaldehyde-releasers (others: formaldehyde in cosmetics, in clothes and in metalworking fluids and miscellaneous).
Mari-Ann Flyvholm, Menne, T., Gerda Lensen, Pieter-Jan Coenraads, Menne, Torkil, Torkil Menné, Lensen, Gerda, de Groot, A.C., Coenraads, P.J., Lensen, G., Coenraads, Pieter-Jan, Flyvholm, Mari-ann, Anton C de Groot, de Groot, Anton C., de Groot, Anton C, Flyvholm, M.A.   +15 more
core   +2 more sources

Noether Theorem in Stochastic Optimal Control Problems via Contact Symmetries

Mathematics, 2021
We establish a generalization of the Noether theorem for stochastic optimal control problems. Exploiting the tools of jet bundles and contact geometry, we prove that from any (contact) symmetry of the Hamilton–Jacobi–Bellman equation associated with an ...
Francesco C. De Vecchi, Elisa Mastrogiacomo, Mattia Turra, Stefania Ugolini   +3 more
doaj   +1 more source

Determining a Surrogate Contact Pair in a Hertzian Contact Problem [PDF]

Journal of Tribology, 2011
Laboratory testing of contact phenomena can be prohibitively expensive if the interacting bodies are geometrically complicated. This work demonstrates means to mitigate such problems by exploiting the established observation that two geometrically dissimilar contact pairs may exhibit the same contact mechanics.
Anthony P, Sanders, Rebecca M, Brannon
openaire   +2 more sources

Analysis of electroelastic frictionless contact problems with adhesion

Journal of Applied Mathematics, 2006
We consider two quasistatic frictionless contact problems for piezoelectric bodies. For the first problem the contact is modelled with Signorini's conditions and for the second one is modelled with normal compliance.
Mircea Sofonea, Rachid Arhab, Raafat Tarraf   +2 more
doaj   +1 more source

A contact‐stabilized Newmark method for dynamical contact problems [PDF]

International Journal for Numerical Methods in Engineering, 2007
AbstractThe numerical integration of dynamical contact problems often leads to instabilities at contact boundaries caused by the non‐penetration condition between bodies in contact. Even an energy dissipative modification (see, e.g. (Comp. Meth. Appl. Mech. Eng. 1999; 180:1–26)), which discretizes the non‐penetration constraints implicitly, is not able
Deuflhard, Peter, Krause, Rolf, Ertel, Susanne   +2 more
openaire   +2 more sources

The Contact Problem in Thermoviscoelastic Materials

Journal of Mathematical Analysis and Applications, 2001
In this very important and useful paper the small longitudinal deformation along the \(x\)-axis of a one-dimensional inhomogeneous thermoviscoelastic body fixed at \(x=0\) and unilaterally constrained at \(x=L\), is considered. Here the expansion and contraction are due to thermal effects and body forces.
Nakao, Mitsuhiro, Muñoz Rivera, Jaime E
openaire   +2 more sources

An Iterative Approximate Method for Solving 2D Weakly Singular Fredholm Integral Equations of the Second Kind

Mathematics
This work aims to propose an iterative method for approximating solutions of two-dimensional weakly singular Fredholm integral Equation (2D-WSFIE) by incorporating the product integration technique, an appropriate cubature formula, and the Picard ...
Mohamed I. Youssef, Mohamed A. Abdou, Abdulmalik Gharbi   +2 more
doaj   +1 more source