Techniques for Experimental Measurement of Fatigue Crack Closure
Fatigue crack closure is an important phenomenon which needs to be taken into account in the development of models for crack propagation. This paper presents an overview of techniques for measuring crack closure. The moiré interferometry approach is described in more detail and some experimental results are presented and compared with the predictions of closure models.
J. Quinta da Fonseca
D. Nowell "Techniques for Experimental Measurement of Fatigue Crack Closure", Applied Mechanics and Materials, Vols. 7-8, pp. 3-9, 2007