Temat: cumulative fatigue damage - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Nonlinear Fatigue Damage Accumulation
Autorzy:: Dębski, D. K.
Powiązania:: https://bibliotekanauki.pl/articles/97967.pdf
Data publikacji:: 2015
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:: cumulative fatigue damage
fatigue damage accumulation
cumulative damage rules
load interaction effects
fatigue life prediction
Opis:: One important element of any computational fatigue analysis is the adoption of a hypothesis of fatigue damage accumulation. The most commonly used is the hypothesis of linear accumulation of fatigue damage called the Palmgren-Miner hypothesis. This linear hypothesis does not take into account a factor of great importance: the mutual influence of consecutive fatigue load sequences on each other. In the presented paper, only two consecutive load sequences linked by mutual relations have been analyzed and the results of the analysis have been shown. A more complex form which takes into account the full load history would create complex formula difficult to use. Perhaps, we should go in this direction, especially that today we have enormous computing power at our disposal.
Źródło:: Fatigue of Aircraft Structures; 2015, 7; 18-23
2081-7738
2300-7591
Pojawia się w:: Fatigue of Aircraft Structures
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Evolution of tensile properties of the TiAl6V4 alloy due to the prior cyclic loading history
Autorzy:: Moćko, W.
Kowalewski, Z. L.
Powiązania:: https://bibliotekanauki.pl/articles/281363.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: fatigue
metals and alloys
deformation and fracture
cumulative fatigue damage
Opis:: The influence of the initial fatigue loading on tensile characteristics of the TiAl6V4 titanium alloy is presented in this work. For cumulative fatigue damage equal to 0.75, a decrease in the pre-fatigue amplitude leads to a lowering in the elongation. Moreover, independent of the amplitude, the loading induces an increase in the yield stress by approximately 100MPa. An increase in the number of pre-fatigue cycles at a constant amplitude results in a decrease in the elongation. Such mechanical behaviour is related to the cyclic hardening effect and the development of fatigue damage, which clearly affects the tensile characteristics of the alloy.
Źródło:: Journal of Theoretical and Applied Mechanics; 2014, 52, 3; 847-851
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Fatigue strength determination of ship structural joints. Part I. Analytical methods for determining fatigue strength of ship structures
Autorzy:: Kozak, J.
Górski, Z.
Powiązania:: https://bibliotekanauki.pl/articles/258582.pdf
Data publikacji:: 2011
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: fatigue of ship structure
cumulative damage
fatigue life analysis
Opis:: Spectacular accidents at sea which have happened for a few last years show that hull structures of contemporary sea-going ships are not perfect and must be systematically improved. Fatigue strength is one of the groups of strength problems which affect design of contemporary ship’s structures and greatly contribute in their improvement process. In this paper several approaches to estimation of fatigue life of hull structural elements are presented. In practice the some approaches based on nominal stresses, „hot spot” stresses or notch stresses which constitute the basis for fatigue life determination by using ó-N design curves are applied. In this paper the existing proposals have been critically analyzed and their drawbacks (often hidden) presented.
Źródło:: Polish Maritime Research; 2011, 2; 28-36
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Safety enhancement and fatigue life protection of the lorry frames carrying elements by using of its real working conditions simulation
Autorzy:: Leitner, B.
Kelemen, M.
Powiązania:: https://bibliotekanauki.pl/articles/329612.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
Tematy:: zmęczenie materiału
analiza dynamiczna
warunki pracy
symulacja komputerowa
working conditions
dynamic analysis
cumulative damage
computer simulation
fatigue life prediction
Opis:: The goal of this paper will be to present FEM application in the TATRA 815 lorry frame structure fatigue life estimation. Structure critical nodes from the fatigue damage point of view have been found and analyzed. Analysis of the particular traffic states influence on the fatigue damage cumulation is going to be presented too.
Źródło:: Diagnostyka; 2010, 2(54); 11-16
1641-6414
2449-5220
Pojawia się w:: Diagnostyka
Dostawca treści:: Biblioteka Nauki

Artykuł

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