Strain Grid Etching & Measuring System


Strain Grid Etching System


Techniques for etching circle grids onto flat sheet and tubes of 3 outer diameter have been developed; such techniques (particularly for tubes) provide continuous circle grid distributions; hence, allowing the entire outer surface area of the tube to be measured.


Strain Grid Etching System

Strain Grid Measurement System


An in-house circle grid etching and measurement system is available to obtain strains from deformed parts. The overall error in measuring strain is estimated to be 3% strain; this is attributed to the calibration method and the final quality of the deformed circles. Circle grid techniques provide valuable information about strains, which are essential for model validation.


Strain Grid Measurement System