Prediction of the Fatigue Life Based on Stiffness Degradation Concept

Y.H. Wang; Zheng Dao Wang; X.X. Zhao

doi:10.4028/www.scientific.net/AMR.33-37.199

Paper Titles

Experimental Study on the Fatigue Properties of RC Beam Strengthened by Prestressed CFL
p.169

Crack Growth Life Estimating for MSD Panel
p.175

Peculiarity of Accelerated Propagation of Fatigue Crack for Medium Carbon Steel under Variable Amplitude Loading
p.181

Evaluation of Fatigue Crack Growth of Interacting Surface Cracks
p.187

Prediction of the Fatigue Life Based on Stiffness Degradation Concept
p.199

Effect of Load Direction on Crack Propagation in High-Temperature Fatigue of Directionally Solidified Superalloy
p.205

Fatigue Analysis of Locking Parts in the Gauge-Adjustable Wheelsets System Considering the Variation of the Fatigue Strength
p.217

Probabilistic Analysis of Cracked Structures With Uncertainty Parameters
p.223

Fatigue Behaviors of a NiCrAlYSi Coated Directionally Solidified Nickel Base Superalloy
p.229

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 33-37Prediction of the Fatigue Life Based on Stiffness...

Prediction of the Fatigue Life Based on Stiffness Degradation Concept

Abstract:

In order to predict the fatigue life of matrix-dominated polymer composites, a new model based on stiffness degradation concept was proposed. The effect of off-axis was considered by defining a non-dimensional modified stress level, and the expression of fatigue stress limit could be provided in the new model. Based on the fatigue tension-tension experiment of PI/SiO2 hybrid thin films under different stress levels, the simulated results was confirmed to be well agreeable with the experimental data.