Application of the Hartman-Schijve equation to represent Mode I and Mode II fatigue delamination growth in composites

作者：Jones R^*; Pitt S; Brunner A J; Hui D

来源：Composite Structures, 2012, 94(4): 1343-1351.

DOI：10.1016/j.compstruct.2011.11.030

• Delamination growth
• Fatigue
• Hartman-Schijve
• Experimental testing

This paper discusses the potential of a variant of the Hartman-Schijve equation to represent both Modes I and II constant amplitude delamination growth in composites. To this end we show that the delamination growth rate da/dN can often be related to (Delta root G - Delta root G(th))alpha, where alpha is approximately 2. As such the exponent in this relationship is considerably lower than the exponent in %26quot;Paris like%26quot; power law representations. We also show that this particular representation of delamination growth in composites is similar to that seen for crack growth in metals.

• 出版日期2012-3