A new high intensity and short-pulse molecular beam valve Rev. Sci. Instrum. 84, 023102 (2013) A novel rheo-optical device for studying complex fluids in a double shear plate geometry Rev. Sci. Instrum. 84, 013709 (2013) Fracture model for cemented aggregates AIP Advances 3, 012119 (2013) Constructal design of pedestrian evacuation from an area J. Appl. Phys. 113, 034904 (2013) Severe energy crises and solar thermal energy as a viable option for Pakistan J. Renewable Sustainable Energy 5,

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... (2013) Additional information on AIP Conf. Proc. ABSTRACT: Waviness in composite wind turbine blades was detected and characterized with the help of air coupled ultrasonics. Based on the aspect ratio, the detected marcels are either accepted or rejected. A passive structural health monitoring approach has been presented here to monitor the accepted marcels above a threshold. The fatigue life of specimen is most affected in the presence of a marcel. Hence this study focused on the damage evaluation after fatigue testing. Wavy laminate was subjected to fatigue load to investigate the fracture mechanisms near the marcel. Different types of defects were identified from this study and were used to develop appropriate instrumentation for health monitoring of a wavy laminate using PVDF patches.