Displacements of the craze border

Fig. 5. Distribution of craze related tractions on and around the ellipsoidal craze cavity under stress k(x) is the premor-dial craze cavity, u(x) the additional displacements of the craze border upon the insertion of the expanded craze lentil and the application of the external stress resulting in the final shape of the craze border f(x)...

The region of the 2D craze sheet consists of drawn fibrillar craze material that prior to its stretch occupied a primordial ellipsoidal region of solid polymer of thickness 2k x), where. r is the coordinate in the craze plane as shown in Fig. 11.6. The stresses and displacements of the craze border as well as the distribution of stresses outside the craze are best understood by analysis in terms of a series of material transformations and superposition exercises treating the infinite solid with the lenticular craze cavity and the craze sheet separately. 

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