Vipul Ranatunga
Air Force Research Laboratory
49 Papers
71 Citations
Vipul Ranatunga is an academic researcher from Air Force Research Laboratory. The author has contributed to research in topics: Composite number & Delamination. The author has an hindex of 7, co-authored 26 publications. Previous affiliations of Vipul Ranatunga include Air Force Institute of Technology & Ohio University.
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Papers
Cohesive modeling of damage growth in z-pinned laminates under mode-I loading:
Vipul Ranatunga,Stephen B. Clay +1 more
TL;DR: In this paper, a traction-separation-based cohesive modeling approach is proposed to predict the effect of z-pinning on laminated composites, and a detailed experimental characterization of the zpin p...
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Low velocity impact and compressive response after impact of thin carbon fiber composite panels
TL;DR: In this paper , two configurations of carbon fiber reinforced epoxy composite panels were impacted with increasing impact energies, and detailed post impact measurement and imaging were conducted to quantify the extent of damage and delamination.
27
Experimental study on the panel size effects of the Low-Velocity Impact (LVI) and Compression After Impact (CAI) of laminated composites, Part I: LVI
Shiyao Lin,Vipul Ranatunga,Anthony M. Waas +2 more
TL;DR: In this article , an experimental study of the LVI responses of flat composite panels of different in-plane sizes is reported, which vary in the inplane size, thickness, and stacking sequence.
27
Impact response in polymer composites from embedded optical fibers
TL;DR: In this article, the authors investigated the feasibility of using embedded optical fibers in polymer matrix composite laminates to characterize delaminations caused by low-velocity impacts with energies between 30
20
Use of UBET for design of flash gap in closed-die forging
TL;DR: An upper bound elemental technique (UBET) has been proposed for the design of the flash gap in closed-die forging operations of axisymmetric shapes as discussed by the authors, and the developed method has been applied to analyze the forging load, die-cavity filling, and effective strain and strain rate distributions.
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