Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: ratcheting

Sortuj według:

Ogranicz wyniki do:

The application of Chaboche model in uniaxial ratcheting simulations

Wójcik Marta, Skrzat A.

Advances in Manufacturing Science and Technology

2020

Vol. 44, nr 2

57--61

This article presents the application of Chaboche nonlinear kinematic hardening model in simulations of uniaxial ratcheting. First, the symmetrical strain-controlled cyclic tension/compression tests for PA6 aluminum samples were done. Using the experimental stress–strain curve, initial material hardening parameters were determined by the ABAQUS software. The experimental curve was compared with the numerical one. For better fitting of both curves, the optimization procedure based on the least-square method was applied. Using the determined hardening parameters, numerical simulations of the ratcheting were done by the finite element analysis software. Numerical results were then compared with the experimental data obtained in the stress-controlled cyclic loading test.

Computational model of processes in the contact area of two cylinders with different diameters taking into account the actual material structure

Podruh J.

International Journal of Applied Mechanics and Engineering

2010

Vol. 15, no 2

503-510

The real material structure taken from a railway wheel was loaded on a test equipment to find its stress-strain characteristic. The determined material variables were verified in the quoted computation. This paper presents results from the analysis with cyclic loading of two wheels with different diameters which are in mutual contact. The target of this research is to simulate by computational methods the low-cycle fatigue approved by metallurgical analyses.