Page 85 - Biaxial Multiaxial Fatigue and Fracture
P. 85

70                        N  ISOBE AND S.  SAKWRAI
























                                            (a) N=100




















                 t                                                           t
                 Boundaly                                              Boundary
                                            (b) N=670

              Fig. 9. Surface cracks observed in an axially welded specimen with 9-0.50 and A%=0.7%.
   80   81   82   83   84   85   86   87   88   89   90