Abstract
The second part dealed with the stress intensity factor (KI) and the stress concentration factor (Kt) at the place which cold cracking frequently occured. The finite element and the body force methods were used to obtain exactly the values of KI and Kt which related the distribution or the value of local stresses at the neighbourhood of crack or notch. The results are summarized as following:
(1) The exact values of KI and Kt in the various types of groove and in the implant specimen were obtained.
(2) The equation was derived that related the value of KI and Kt with the factors involved in the types of groove and in the implant specimen.
