“…In fact, many craze initiation criterion are based on critical mean stress only (see, Sternstein and Ongchin, 1969) implying that deviatoric states of stress do not lead to initiation of crazes. It is, however, clear that attainment of a critical mean stress (see, Saad et al, 2006) is necessary for the onset of crazing though it may not be sufficient (see also, Sternstein and Myers, 1973).…”