Thank you Dear Jorgen for your answer. I learned ext.1, it means that extension of signed distance for Digital Image Correlation. ( For uniaxial ten...

Thank you so much for your answer Mr. Bergstrom But exactly, you said our problem 🙁 Our equibiaxial tensile test mechanism has no suitable place for...

What about your thickness? My height is 80mm and thickness is 2mm. My max strain aprox. 90%.