A direct and time-saving method is presented in a paper published in the Elsevier journal Engineering Fracture Mechanics. The paper is well-written and really read-worthy. The link to it is:
The partitioning approach is based on the application of the partitioned 𝐽-integral to strain fields directly measured using DIC, i.e. Digital Image Correlation. I was informed by my wife that the same acronym is used in medical science for Disseminated Intravascular Coagulation. She accepted our definition when I told her that there would be hardly any problems because of the obvious focus of all iMechanica readers. Anyway, to establish a firm foundation, the proposed method is first tested on displacements and strains based on Finite Element Analyses of a double cantilever beam exposed to different loads. A significant number of cases were tested. The results provide a robust correlation between the two approaches.
The method of direct mixed-mode partitioning is intended for use with many beam-like composite geometries. Also, asymmetric geometries were used and revealed good results. Also, a whole range of different thickness ratios was examined, providing accurate predictions for the whole range. I hope for a continuation and ideas for new applications. It would be interesting to hear from anyone who would like to provide comments or thoughts on the method or related topics. Perhaps the authors can cast some light on future actions regarding the subject.
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For ESIS by, Per Ståhle