An advanced model for initiation and propagation of damage under fatigue loading - part II: Matrix cracking validation cases

作者：May Michael; Pullin Rhys; Eaton Mark; Featherston Carol; Hallett Stephen R^*

来源：Composite Structures, 2011, 93(9): 2350-2357.

DOI：10.1016/j.compstruct.2011.03.023

• Fatigue
• Interface elements
• Finite Element analysis
• Matrix cracking
• Acoustic emission
• Radiography

A series of tests were conducted to act as validation cases for the numerical model developed in part I of this paper to predict the initiation and propagation of damage in composite materials. The onset of matrix cracking in [0(2)/0(4)](s) specimens under tension-tension fatigue loading was studied using acoustic emission (AE) and dye-penetrant enhanced X-rays. The number of cracks identified by significant AE hits correlated well with the number of cracks identified by X-rays. Finite Element simulations of the [0(2)/0(4)](s) specimens using the model from part I for cohesive interface elements fatigue loading showed a good correlation with the experimental results.

• 出版日期2011-8