Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Powiadomienia systemowe

Sesja wygasła!

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Thermomechanical Fatigue of Metallic High-Temperature Materials

Christ H.

Zeszyty Naukowe. Mechanika / Politechnika Opolska

2005

z. 79

65-84

Cyclic Stress-Strain Response of Metals and Alloys liadelling on a Microstructural Basis

Christ H.

Zeszyty Naukowe. Mechanika / Politechnika Opolska

2005

z. 84

53-72

The observation of a heterogeneous dislocation distribution established in metals and alloys under cyclic-loading conditions indicates a locally varying yield stress. Hence, it seems to be justified to consider even a single-phase material as a composite consisting of elements with different flow stresses. This idea is used in order to describe and predict the cyclic stress-strain behaviour of metalJic materials. The range of applicability of multi-component models with respect to the dislocation slip character and the loading conditions is defined. A statistical mathe-matical treatment leads to equations which allow one to determine the distribution function of yield stresses directly from a single branch of a hysteresis loop. The procedurę of the stress-strain path calculation is illustrated by means of examples and a comparison of calculated and experimentally obtained results is presented.