численный эксперимент

Analysis of Healthy and Pathological Human Willis Circle Arteries

Authors: Ivanov D. V.

The aim of this research is to explain initiation, growth and rupture processes of intracranial aneurysms from the mechanical point of view. Results of mechanical testing experiments of intracranial arteries segments are presented, method of obtaining hyperelastic material constants is described. Several boundary problems which simulate blood flow through the arteries were solved with the help of finite element method.

 

Numerical Implementation of Method of Subsequent Perturbation of Parameters for Computation of Stress-Strain State of a Shell Rigidly Fixed on the Boundaries

Authors: Bessonov L. V.

The Karman model for a shell rectangular in the plan with rigid fixation of the boundaries is considered. An orthonormalized system of basis functions satisfying the boundary conditions of the problem is obtained. Linearization of the problem is given and the solution
is obtained by the method of subsequent perturbation of parameters due to Vladlen V. Petrov. The solutions including supporting intermediate results for the shell made of rolled duralumin are discussed.