Abstract
Mechanical properties of lead are studied experimentally with aid of image processing technique. At first, a new image processing technique is developed. In this method, three-dimensional material points are initially projected to the images and their displacements are traced in each image by a two-dimensional image processing technique. These displacement fields are combined to recover the three dimensional deformation. Then, the mechanical properties of lead are studied through material tests, in which the proposed image processing technique is applied. From these experiments, it is clarified that lead has rate dependency and that stress shows softening because of the accumulated damage in the large strain range.
