| 簡 介： |
With the increasing development of polymeric materials, it becomes
important for research on mechanical properties of polymeric materials under large
deformation conditions. To know displacement distributions in the polymeric
structures could help us to better understand the deformation characteristics of
polymeric structures in fracture analysis. In this paper, an experimental digital moiré
method for the in-plane deformation measurement in a sample of transparent
polymeric material, which is a non-contact method for full-field, large deformation
and real-time measurement, is presented. The measurement principles and the basic
procedures of the method are explained in detail. In order to demonstrate this method,
a cross grating is generated and put into a transparent polymeric specimen. The
subsequent fringe and displacement analysis is carried out using the method
developed by the authors. |
