Wszystkie pola: kebir, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A FCG Model and the Graphical User Interface Under Matlab for Predicting Fatigue Life: Parametric Studies
Autorzy:: Kebir, Tayeb
Correia, José A.F.O.
Benguediab, Mohamed
Imad, Abdellatif
Powiązania:: https://bibliotekanauki.pl/articles/2105193.pdf
Data publikacji:: 2021
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:: fatigue life prediction
Graphical User Interface
fatigue crack growth
cyclic hardening
Paris
Walker
Forman
Opis:: The focus of this research work was predicting the fatigue life of mechanical components used for industrial and transport systems. To understand how the phenomenon of fatigue occurs in a material, the fatigue crack growth is studied. The purpose of this work was to create a graphical user interface (GUI) under Matlab to allow researchers to conduct the parametric studies of fatigue crack propagation to predict fatigue life. In this work, three models for fatigue crack propagation were used: those of Paris, Walker and Forman in order to study the three parameters: the Paris exponent m, load ratio R and hardness KIC, respectively. In addition, a novel model FCG was developed to study the influence of the hardening parameters (K′, n′) on fatigue crack propagation. The comparison of the simulation results with those in the literature shows good agreement.
Źródło:: Fatigue of Aircraft Structures; 2021, 13; 116--139
2081-7738
2300-7591
Pojawia się w:: Fatigue of Aircraft Structures
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: A Model for Fatigue Crack Growth in the Paris Regime under the Variability of Cyclic Hardening and Elastic Properties
Autorzy:: Kebir, T.
Benguediab, M.
Imad, A.
Powiązania:: https://bibliotekanauki.pl/articles/97819.pdf
Data publikacji:: 2017
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:: cyclic plastic strain
elastic properties
cyclic hardening parameters
Young's modulus
variability
crack tip
fatigue crack growth
constants of the Paris law
Al-alloys
Opis:: Over the last 60 years, several models have been developed governing different zones of fatigue crack growth from the threshold zone to final failure. The best known model is the Paris law and a number of its based on mechanical, metallurgical and loading parameters governing the propagation of cracks. This paper presents an analytical model developed to predict the fatigue crack propagation rate in the Paris regime, for different material properties, yield strength (σ_y), Young’s modulus (E) and cyclic hardening parameters (K’, n’) and their influence by variability. The cyclic plastic deformation at a crack tip or any other cyclic hardening rule may be used to reach this objective, for to investigate this influence, these properties of the model are calibrated using available experimental data in the literature. This FCGR model was validated on Al-alloys specimens under constant amplitude load and shows good agreement with the experimental results.
Źródło:: Fatigue of Aircraft Structures; 2017, 9; 117-135
2081-7738
2300-7591
Pojawia się w:: Fatigue of Aircraft Structures
Dostawca treści:: Biblioteka Nauki

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