Temat: uniaxial load - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The concept of using a weighted amplitude to determine the fatigue life of load stress blocks
Autorzy:: Obrał, Justyna
Powiązania:: https://bibliotekanauki.pl/articles/2055050.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: uniaxial load
damage
stress amplitude
Opis:: This work shows the model for determining the fatigue life of block loads. The proposed model is a kinematic model that can be used using a linear fatigue characteristic, i.e. in the range of a large number of cycles. The model has been developed on the basis of the previous hypotheses of cumulation of damage by Palmgren-Miner using a weighted amplitude of m-degree. The final version proposes calculation of the variable amplitude of the average based on these two models.
Źródło:: Journal of Theoretical and Applied Mechanics; 2021, 59, 3; 515--518
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: On the fatigue-critical amplitude of random-amplitude stress
Autorzy:: Kolenda, J.
Powiązania:: https://bibliotekanauki.pl/articles/260417.pdf
Data publikacji:: 2007
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: uniaxial load
random stress
high-cycle fatigue
failure probability
Opis:: Uniaxial non-zero mean stress of constant circular frequency in the high-cycle fatigue regime is considered. It is assumed that equation of the S-N curve and modified Soderberg equation are applicable. For constant-amplitude stress, the fatigue-critical stress amplitude is defined as that which leads to failure during the required design life. For random-amplitude stress, expected values of the fatigue-critical stress amplitude and total fatigue damage accumulated during the required design life are estimated. It is found that the probability of fatigue failure is equal to the probability of exceedance of the fatigue-critical stress amplitude. As an example, for stationary random stress the equivalent random-amplitude stress and probability of fatigue failure are determined.
Źródło:: Polish Maritime Research; 2007, 2; 9-11
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

Artykuł

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