Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 3 of 3 for “"surface wrinkles"”.
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Characterization of sub-surface wrinkles within a laminated composite using a novel phased array ultrasonic scanning technique incorporating a portable nozzle and robotic arm.
… compromised by the presence of out-of-plane wrinkles, a manufacturing defect that occurs in thick complex curvature composite stacks. This thesis presents an ultrasound scanning technique utilizing a novel phased array approach to detect out-of-plane wrinkles and, unlike previous literature …
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De-wrinkling of cellulosic barrier materials coated on paper during scale-up on a roll-to-roll system
… the fabrication process is the formation of surface wrinkles. The wrinkling instability could arise because of the mismatch strain between film and substrate, paper swelling, and external forces such as constrained edges during the coating and drying processes. This instability leads to …
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Dielectric Elastomer Actuators in Electro-Responsive Surfaces Based on Tunable Wrinkling and the Robotic Arm for Powerful and Continuous Movement
… for years. Recently the DEA-based deformable surfaces have demonstrated controllable microscale roughness, ease of operation, fast response, and possibilities for programmable control. DEA muscles used in bioinspired robotic arms for large deformation and strong force also become desirable for …