The Experts below are selected from a list of 154341 Experts worldwide ranked by ideXlab platform
T G Leighton - One of the best experts on this subject based on the ideXlab platform.
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numerical studies of cavitation erosion on an elastic Plastic Material caused by shock induced bubble collapse
Proceedings of The Royal Society A: Mathematical Physical and Engineering Sciences, 2017Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G LeightonAbstract:We present a study of shock-induced collapse of single bubbles near/attached to an elastic–Plastic solid using the free-Lagrange method, which forms the latest part of our shock-induced collapse studies. We simulated the collapse of 40 μm radius single bubbles near/attached to rigid and aluminium walls by a 60 MPa lithotripter shock for various scenarios based on bubble–wall separations, and the collapse of a 255 μm radius bubble attached to aluminium foil with a 65 MPa lithotripter shock. The coupling of the multi-phases, compressibility, axisymmetric geometry and elastic–Plastic Material model within a single solver has enabled us to examine the impingement of high-speed liquid jets from the shock-induced collapsing bubbles, which imposes an extreme compression in the aluminium that leads to pitting and Plastic deformation. For certain scenarios, instead of the high-speed jet, a radially inwards flow along the aluminium surface contracts the bubble to produce a ‘mushroom shape’. This work provides methods for quantifying which parameters (e.g. bubble sizes and separations from the solid) might promote or inhibit erosion on solid surfaces.
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numerical studies of cavitation erosion on an elastic Plastic Material caused by shock induced bubble collapse
Proceedings of The Royal Society A: Mathematical Physical and Engineering Sciences, 2017Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G LeightonAbstract:Dataset supports: Turangan, C., Ball, G., Jamaluddin, R., & Leighton, T. (2017). Numerical studies of cavitation erosion on an elastic-Plastic Material caused by shock-induced bubble collapse. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 473(2205)
C K Turangan - One of the best experts on this subject based on the ideXlab platform.
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numerical studies of cavitation erosion on an elastic Plastic Material caused by shock induced bubble collapse
Proceedings of The Royal Society A: Mathematical Physical and Engineering Sciences, 2017Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G LeightonAbstract:We present a study of shock-induced collapse of single bubbles near/attached to an elastic–Plastic solid using the free-Lagrange method, which forms the latest part of our shock-induced collapse studies. We simulated the collapse of 40 μm radius single bubbles near/attached to rigid and aluminium walls by a 60 MPa lithotripter shock for various scenarios based on bubble–wall separations, and the collapse of a 255 μm radius bubble attached to aluminium foil with a 65 MPa lithotripter shock. The coupling of the multi-phases, compressibility, axisymmetric geometry and elastic–Plastic Material model within a single solver has enabled us to examine the impingement of high-speed liquid jets from the shock-induced collapsing bubbles, which imposes an extreme compression in the aluminium that leads to pitting and Plastic deformation. For certain scenarios, instead of the high-speed jet, a radially inwards flow along the aluminium surface contracts the bubble to produce a ‘mushroom shape’. This work provides methods for quantifying which parameters (e.g. bubble sizes and separations from the solid) might promote or inhibit erosion on solid surfaces.
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numerical studies of cavitation erosion on an elastic Plastic Material caused by shock induced bubble collapse
Proceedings of The Royal Society A: Mathematical Physical and Engineering Sciences, 2017Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G LeightonAbstract:Dataset supports: Turangan, C., Ball, G., Jamaluddin, R., & Leighton, T. (2017). Numerical studies of cavitation erosion on an elastic-Plastic Material caused by shock-induced bubble collapse. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 473(2205)
A R Jamaluddin - One of the best experts on this subject based on the ideXlab platform.
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numerical studies of cavitation erosion on an elastic Plastic Material caused by shock induced bubble collapse
Proceedings of The Royal Society A: Mathematical Physical and Engineering Sciences, 2017Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G LeightonAbstract:We present a study of shock-induced collapse of single bubbles near/attached to an elastic–Plastic solid using the free-Lagrange method, which forms the latest part of our shock-induced collapse studies. We simulated the collapse of 40 μm radius single bubbles near/attached to rigid and aluminium walls by a 60 MPa lithotripter shock for various scenarios based on bubble–wall separations, and the collapse of a 255 μm radius bubble attached to aluminium foil with a 65 MPa lithotripter shock. The coupling of the multi-phases, compressibility, axisymmetric geometry and elastic–Plastic Material model within a single solver has enabled us to examine the impingement of high-speed liquid jets from the shock-induced collapsing bubbles, which imposes an extreme compression in the aluminium that leads to pitting and Plastic deformation. For certain scenarios, instead of the high-speed jet, a radially inwards flow along the aluminium surface contracts the bubble to produce a ‘mushroom shape’. This work provides methods for quantifying which parameters (e.g. bubble sizes and separations from the solid) might promote or inhibit erosion on solid surfaces.
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numerical studies of cavitation erosion on an elastic Plastic Material caused by shock induced bubble collapse
Proceedings of The Royal Society A: Mathematical Physical and Engineering Sciences, 2017Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G LeightonAbstract:Dataset supports: Turangan, C., Ball, G., Jamaluddin, R., & Leighton, T. (2017). Numerical studies of cavitation erosion on an elastic-Plastic Material caused by shock-induced bubble collapse. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 473(2205)
G J Ball - One of the best experts on this subject based on the ideXlab platform.
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numerical studies of cavitation erosion on an elastic Plastic Material caused by shock induced bubble collapse
Proceedings of The Royal Society A: Mathematical Physical and Engineering Sciences, 2017Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G LeightonAbstract:We present a study of shock-induced collapse of single bubbles near/attached to an elastic–Plastic solid using the free-Lagrange method, which forms the latest part of our shock-induced collapse studies. We simulated the collapse of 40 μm radius single bubbles near/attached to rigid and aluminium walls by a 60 MPa lithotripter shock for various scenarios based on bubble–wall separations, and the collapse of a 255 μm radius bubble attached to aluminium foil with a 65 MPa lithotripter shock. The coupling of the multi-phases, compressibility, axisymmetric geometry and elastic–Plastic Material model within a single solver has enabled us to examine the impingement of high-speed liquid jets from the shock-induced collapsing bubbles, which imposes an extreme compression in the aluminium that leads to pitting and Plastic deformation. For certain scenarios, instead of the high-speed jet, a radially inwards flow along the aluminium surface contracts the bubble to produce a ‘mushroom shape’. This work provides methods for quantifying which parameters (e.g. bubble sizes and separations from the solid) might promote or inhibit erosion on solid surfaces.
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numerical studies of cavitation erosion on an elastic Plastic Material caused by shock induced bubble collapse
Proceedings of The Royal Society A: Mathematical Physical and Engineering Sciences, 2017Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G LeightonAbstract:Dataset supports: Turangan, C., Ball, G., Jamaluddin, R., & Leighton, T. (2017). Numerical studies of cavitation erosion on an elastic-Plastic Material caused by shock-induced bubble collapse. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 473(2205)
A K Ghosh - One of the best experts on this subject based on the ideXlab platform.
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characterisation of crack tip stresses in elastic perfectly Plastic Material under mode i loading
International Journal of Mechanical Sciences, 2011Co-Authors: I A Khan, J. Chattopadhyay, V Bhasin, A K GhoshAbstract:Abstract Asymptotic crack tip stress fields are developed for a stationary plane strain crack in incompressible elastic-perfectly Plastic Material under mode-I loading. Detailed investigations have revealed that in between the two extreme conditions of crack tip constraint, that is, between the fully Plastic Prandtl [1] field and the uniform stress field the most general elastic–Plastic crack tip fields can be completely described by the 5-sector stress solution proposed in this article. The 3-sector stress field proposed by Li and Hancock [2] and the 4-sector field proposed by Zhu and Chao [3] are subsets of the general elastic–Plastic field proposed in this work. This study has revealed that cases arise where the severe loss of crack tip constraint can lead to compressive yielding of crack flank. This particular situation leads to 5-sector stress field. Detailed studies have revealed that, in the most general case of elastic–Plastic crack tip fields, the T π parameter proposed by Zhu and Chao [3] cannot be used as a constraint parameter to represent a unique state of stress at the crack tip. A new constraint-indexing parameter T CS -2 is proposed, which along with T p is capable of representing the entire elastic–Plastic crack tip stress fields over all angles around a crack tip. Excellent agreement is obtained between the proposed asymptotic crack tip stress field and the full-field finite element results for constraint levels ranging from high to low. It is demonstrated that the proposed constraint parameters are adequate to represent the crack tip constraint arising due to specimen geometry and loading conditions as well as the additional constraint that arises due to weld strength mismatch.
