Real-Time and Quantitative Measurement of Crack-Tip Stress Intensity Factors Using Digital Holographic Interferometry

<div>Principle diagram of the digital holographic system. BS1 and BS2 are the beam splitters; M1 and M2 are the mirrors; L1, L2, L3, and L4 are the positive lenses; CL is the negative lens; SF1 and SF2 are the spatial filters.</div>

Advances in Materials Science and Engineering

fig1

Figure 1

Figure 1: Real-Time and Quantitative Measurement of Crack-Tip Stress Intensity Factors Using Digital Holographic Interferometry 