Fatigue crack initiation and propagation

Gloanec, A.-L., Cerracchio, P., Reynier, B., Van Herpen, A., Riberty, P., 2010. Fatigue crack initiation and propagation of a TiNi shape memory alloy. Scripta Materialia 62, 786—789. Acta Materialia Inc. Published by Elsevier Ltd. 

Resistance to fatigue crack initiation and propagation was similar for the two alloys and their weldments. Fatigue crack growth rate, in the lower stress intensity factor (AAT) range, was slower in the weld than in the parent material. 

There are also applications of quantum theory for instance in the onset of a failure in a material. The failure starts on the atomic scale when an interatomic bonding is stressed beyond its yield-stress threshold and breaks. The initiation and diffusion of point defects in crystal lattice turn out to be a starting point of many failures. These events occur in a stress field at certain temperatures. The phenomena of strain, fatigue crack initiation and propagation, wear, and high-temperature creep are of particular interest The processes of nucleation and diffusion of vacancies in the crystal lattice determines the material behavior at many operation conditions. 

Baker D.A., A. Bellare, and L. Pruitt. 2003. The effects of degree of crossUnking on the fatigue crack initiation and propagation resistance of orthop>edic-grade polyethylene. Biomed Mater Res Part A 66A 146-154. 

Recall the HP relation, which summarizes the effect of grain size on some static mechanical properties. Experimental results indicate that the resistance of materials to fatigue-crack initiation and propagation is significantly influenced by grain size. This applies to ceramics as well. It is widely recognized that, when all the other structural factors are kept approximately fixed, an increase in grain size will... 

Bellemai-e S C, Bureau M N, Denault J and Dickson J I (2004) Fatigue crack initiation and propagation in polyamide-6 and in polyaiiiide-6 nanocomposites, Polym Compos 25 433-441. 

A basic knowledge of the principles involving the mechanism of fatigue crack initiation and propagation is essential to the understanding... 

Theories of Corrosion Fatigue Crack Initiation and Propagation... 

Baker DA, Bellare A, Pruitt L. The effect of degree of crosslinking on the fatigue crack initiation and propagation resistance of orthopedic-grade polyethylene. J Biomed Mater Res 2003 66A 146-54. 

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