• SERVESH KUMAR AGNIHOTRI

      Articles written in Sadhana

    • Evaluation of dynamic SIF during crack propagation in layered plates having property variation along the crack front

      SERVESH KUMAR AGNIHOTRI

      More Details Abstract Fulltext PDF

      The present study emphasizes understanding the crack propagation in layered structures under dynamic loading conditions when the property jumps occur across the crack front. Layered plates were made by joining polymethylmethacrylate (PMMA) and epoxy sheets using an epoxy-based adhesive (Araldite). Single edge notched (SEN) specimens were subjected to dynamic loading using a modified Hopkinson bar setup. An array of strain gauges installed on surfaces of specimen was used to record the strain history in the layers during crack propagation from which the dynamic stress intensity factor (SIF) during crack propagation was evaluated. Photographs of the propagating crack front were also simultaneously captured using a high-speed imagingcamera to obtain the crack tip location history in each layer

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