scholarly journals Cyclic-fatigue crack growth in composite and adhesively-bonded structures: The FAA slow crack growth approach to certification and the problem of similitude

2016 ◽  
Vol 88 ◽  
pp. 10-18 ◽  
Author(s):  
R. Jones ◽  
A.J. Kinloch ◽  
W. Hu
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Slow Crack Growth ◽  
Cyclic Fatigue ◽  
Adhesively Bonded ◽  
Growth Approach ◽  
Adhesively Bonded Structures

Adhesion and Reliability of Epoxy/Glass Interfaces

2000 ◽  
Vol 123 (4) ◽  
pp. 401-404 ◽  
Author(s):  
John E. Ritter ◽  
Armin Huseinovic
Keyword(s):  
Fatigue Crack ◽  
Cyclic Loading ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Slow Crack Growth ◽  
Cyclic Fatigue ◽  
Aqueous Environments ◽  
Crack Tip Plasticity ◽  
Static And Cyclic Loading ◽  
Microelectronic Components

The reliability of microelectronic components is profoundly influenced by the fracture resistance of the polymer/inorganic interfaces and by the progressive debonding of these interfaces in aqueous environments. Consequently, fatigue (slow) crack growth in epoxy/glass interfaces bonded with the silane coupling agent 3-aminopropyltriethoxysilane (3-APES) was studied under static and cyclic loading at 23°C and in either dry or humid conditions using the double cleavage drilled compression (DCDC) test. Crack growth rates under cyclic loading were significantly greater than under static loading, indicating that stress corrosion effects are negligible and that crack tip plasticity controls cyclic fatigue crack growth at silane (3-APES) bonded epoxy/glass interfaces. After aging at 94°C in water, these silane bonded epoxy/glass interfaces exhibited somewhat greater resistance to cyclic fatigue crack growth than the unaged samples; however, after aging at 98°C in water cyclic fatigue crack growth became cohesive and fractal in nature. Mechanisms for fatigue crack growth at silane (3-APES) bonded epoxy/glass interfaces are discussed.

Cyclic Fatigue Crack Growth in PZT Under Mechanical Loading

2005 ◽  
Vol 88 (5) ◽  
pp. 1331-1333 ◽  
Author(s):  
Christopher R. J. Salz ◽  
Mark Hoffman ◽  
Ilona Westram ◽  
Jurgen Rodel
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Mechanical Loading ◽  
Cyclic Fatigue
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