Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: linear elasticity

Sortuj według:

Ogranicz wyniki do:

Mesh r-adaptation for unilateral contact problems

100%

Béal P., Koko J., Touzani R.

International Journal of Applied Mathematics and Computer Science

2002

tom 12

nr 1

9-16

We present a mesh adaptation method by node movement for two-dimensional linear elasticity problems with unilateral contact. The adaptation is based on a hierarchical estimator on finite element edges and the node displacement techniques use an analogy of the mesh topology with a spring network. We show, through numerical examples, the efficiency of the present adaptation method.

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Optimal design of cylindrical shells

88%

Nestler P., Schmidt W.

Discussiones Mathematicae, Differential Inclusions, Control and Optimization

2010

tom 30

nr 2

253-267

The present paper studies an optimization problem of dynamically loaded cylindrical tubes. This is a problem of linear elasticity theory. As we search for the optimal thickness of the tube which minimizes the displacement under forces, this is a problem of shape optimization. The mathematical model is given by a differential equation (ODE and PDE, respectively); the mechanical problem is described as an optimal control problem. We consider both the stationary (time independent) and the transient (time dependent) case. P. Nestler derives the model-equations from the Mindlin and Reissner hypotheses. Then, necessary optimality conditions for the optimal control problem are given. Numerical solutions are obtained by FEM, numerical examples are presented.

Ograniczanie wyników

1 Discussiones Mathematicae, Differential Inclusions, Control and Optimization

1 International Journal of Applied Mathematics and Computer Science

1 Béal P.

1 Koko J.

1 Nestler P.

1 Schmidt W.

1 Touzani R.

1 2010

1 2002

Wyniki wyszukiwania

Mesh r-adaptation for unilateral contact problems

Optimal design of cylindrical shells