Asking information about optical application in Civil engineering
I would want to ask you some questions can help me to find answers related to my PhD thesis. The main subject of my thesis is to prove possibilities of speckle interferometry technique as a non-destructive method to measure the displacement field in structural element such as shearwalls and building model. For this purpose I need to know if have you seen the modeling of structural elements such as shearwalls by optical techniques.
I also used an electronic speckle pattern interferometry to measure dynamic Young modulus in cementitious materials. In this experiment interferometry technique was combined with longitudinal resonance method to measure resonance frequency by using the quantities of fringe that appear over the specimen. Have American Concrete Institute reported the Young modulus measurements by optical techniques, for example: holographic technique and speckle interferometry technique? Could you comment the most important advantages and drawbacks that the ultrasonic method has when is used to measure the elastic modulus?