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. Author manuscript; available in PMC: 2019 Jul 1.
Published in final edited form as: Int J Solids Struct. 2018 Apr 26;144-145:137–144. doi: 10.1016/j.ijsolstr.2018.04.019

Fig. 1.

Fig. 1.

Schematic representation of the compact tension specimen used in this study. B denotes the region where elastic-plastic/transformation sub-domains and/or matrix elastic heterogeneity are defined. The reunion of the transformation sub-domains in region B (red dots) is denoted by ℑ. A crack of initial length a0 is introduced along segment OA (O is at the origin of the coordinate system) and a cohesive zone is defined along plane y = 0 in front of the crack. The circular domain surrounding region B (shown in blue) is used for the calculation of the J integral. δ is the displacement boundary condition applied at the top and bottom boundaries. Heterogeneity is limited to region B.