Fig.8
The effect of \(\mathbf{q}\) parameter on the stability of crack
propagation
a) \(\mathbf{q}\mathbf{=1}\) , b) \(\mathbf{q}\mathbf{=0.8}\) , c)\(\mathbf{q}\mathbf{=0.5}\)
The global aspect of the load-displacement curve is similar to that
obtained with the previous investigations.15,53However, it should be noted that the general fracture process is quite
different for the highest values of the hardening module. From the
force-displacement curve, unlike Ambati et al , the initiation of
the failure in the present material is not quite abrupt, Fig.9.