Abstract
In this article, the fracture behavior of shape memory polymers (SMPs) is investigated under thermomechanical loadings. The effects of polymer phase transformation due to temperature variation on fracture parameters and the resultant toughening response are examined using the well-known extended finite element method. In addition, the influence of various phases of an embedded SMP inclusion on the crack growth trajectory is analyzed. Comparison of the results with available experiments reveals that the proposed thermomechanical model is sufficiently accurate for the purpose of fracture analysis of SMPs.
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