ABSTRACT
G. Essential Work of Fracture In recent years, Seth and colleagues [44-46,74] have published a number of papers describing the application of the essential work of fracture (EWF) method to paper. Recall that for this method, plastic energy dissipation is divided into two compo nents: energy dissipated in the fracture process zone, which is directly proportional to the ligament width, and energy dissipated in the outer plastic zone, which is proportional to the square of the ligament width. They found the plot of ny versus L to be highly linear, which is an indication that the basic assumptions underlying this method are correct. Typical data are illustrated in Fig. 21.
