Fatigue Deformation Characteristics and Damage Model of Sandstones Subjected to Cyclic Loading: Implications for Fatigue Life Prediction

2022 ◽  
Vol 22 (1) ◽  
Author(s):  
Peng Kang ◽  
Zhou Jiaqi ◽  
Zou Quanle ◽  
Mou Junhui
Keyword(s):  
Fatigue Life ◽  
Cyclic Loading ◽  
Life Prediction ◽  
Damage Model ◽  
Fatigue Life Prediction ◽  
Deformation Characteristics ◽  
Fatigue Deformation

Fatigue Life Prediction of Composite Laminate

2012 ◽  
Vol 472-475 ◽  
pp. 591-595 ◽  
Author(s):  
Jun Liu ◽  
Feng Peng Zhang
Keyword(s):  
Fatigue Life ◽  
Fatigue Damage ◽  
Composite Laminates ◽  
Life Prediction ◽  
Plate Theory ◽  
Damage Model ◽  
Prediction Method ◽  
Fatigue Life Prediction ◽  
Fatigue Properties ◽  
Adjacent Layer

Abstract. based on the accumulating fatigue damage model, with single ply plate theory and experiment data as the foundation, consider the interaction between adjacent layer and material degradation, a kind of fatigue life prediction method of fiber reinforced composite laminates is developed. The stiffness decline of each ply during cyclic loading is determined by the fatigue damage variable and the load amplitude and the fatigue life of any laminates can be predicted using the fatigue properties of single ply plate. Using this method a 3D Finite element model is established by ABAQUS software and the fatigue life and the fatigue damage evolution of a T300 / QY8911 laminats are analyzed, the results are more closer to the experimental results.

Development and Validation of a S-N Based Two Phase Bending Fatigue Life Prediction Model

2001 ◽  
Author(s):  
Avinash Singh
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
Damage Model ◽  
Cumulative Damage ◽  
Fatigue Life Prediction ◽  
Two Phase ◽  
Initiation Phase ◽  
Two Phases ◽  
Life Predictions ◽  
Development And Validation

Abstract The stress-life (S-N) method along with the Palmgren-Miner cumulative damage theory is the simplest and the most commonly used fatigue life prediction technique. Its main advantage is that the material properties needed are easy to collect and life calculation is simple. However under many variable amplitude loading conditions, life predictions have been found to be unreliable. Various modifications have been proposed to the Palmgren-Miner theory, but they have not lead to more reliable life predictions. In this paper, a two-stage cumulative damage model will be developed and validated. This model divides fatigue life into two phases — a crack initiation phase and a crack propagation phase. It will be shown that the proposed method results in greatly improved life prediction capabilities. Also, the proposed method retains the simplicity of the S-N based approach in that the material data is still relatively simple to generate and the calculations are straightforward.

Fatigue life prediction under variable loading based on a new damage model

2011 ◽  
Vol 32 (1) ◽  
pp. 183-191 ◽  
Author(s):  
A. Aid ◽  
A. Amrouche ◽  
B. Bachir Bouiadjra ◽  
M. Benguediab ◽  
G. Mesmacque
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
Damage Model ◽  
Fatigue Life Prediction ◽  
Variable Loading
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