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T G Leighton - One of the best experts on this subject based on the ideXlab platform.

  • 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, 2017
    Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G Leighton
    Abstract:

    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.

  • 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, 2017
    Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G Leighton
    Abstract:

    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.

  • 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, 2017
    Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G Leighton
    Abstract:

    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.

  • 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, 2017
    Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G Leighton
    Abstract:

    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)

Junling Hou - One of the best experts on this subject based on the ideXlab platform.

  • a fatigue model based on m integral in notched Elastic Plastic Material
    International Journal of Solids and Structures, 2021
    Co-Authors: Zhenjie Zhang, Junling Hou
    Abstract:

    Abstract In this paper, an innovative fatigue model is investigated based on the concept of M-integral in notched Elastic–Plastic Material. The contribution of notch and Plastic zone damage to the lifetime of Material are taken into account in the present fatigue model. The new form of fatigue damage evolution rate (dAD/dN) and fatigue driving force (ΔM) are introduced, where AD deontes the equivalent damage area of notch, Plastic zone and cracks, N is the number of cycles, and ΔM corresponds to the M-integral range per load cycle. The fatigue experimental evaluations of a typically Elastic–Plastic Material (e.g., No. 45 steel) with a circular notch have been carried out to validate the effectiveness of the present fatigue model. For experimental study, the change of the total potential energy (CTPE) is introduced to measure the value of M-integral. The results demonstrate that dAD/dN shows an apparent power law relation with ΔM in notched Elastic–Plastic Material. The slope n and intercept λ of lg(dAD/dN)-lg(ΔM) curve has linear correlation with the initial notch radius R, but not with applied stress σ. Moreover, the model can clearly describe the two-stage process from the initiation of microcracks to the growth of macrocracks in notched body. It is concluded that the proposed fatigue model based on M-integral can accurately predict the fatigue lifetime of the notched Elastic–Plastic Material.

  • Material configurational forces applied to mixed mode fatigue crack propagation and life prediction in Elastic Plastic Material
    International Journal of Fatigue, 2020
    Co-Authors: Ran Liu, Junling Hou
    Abstract:

    Abstract Within the framework of Material configurational mechanics, an innovative fatigue model based on configurational force is proposed to predict the mixed-mode fatigue crack propagation in Elastic-Plastic Material. This fatigue mode can provide the estimation of crack initiation, crack deflection, and residual fatigue lifetime simultaneously. The configurational-force fatigue model has the following basic stipulations: (a) the onset of crack growth occurs when the resultant of configurational forces reaches a critical value; (b) the crack growth takes place along the direction of resultant configurational force vector; and (c) the growth rate of mixed-mode fatigue crack is correlated to the equivalent range of Material configurational forces. In order to validate the accuracy of the newly proposed fatigue model, a series of experiments are constructed by the compact tension shear specimen. The mixed-mode fatigue crack growth path and rate are obtained under different mixed-mode loading conditions. In addition, numerical implementation of configurational-force fatigue model is performed in Elastic-Plastic Material. The results show that the mixed-model fatigue crack deflections predicted by the configurational-force fatigue model are in good agreement with experimental observations. Meanwhile the fatigue crack growth rate in Elastic-Plastic Material has the power law relation with the equivalent range of Material configurational forces, which is regardless of mixed-mode loading. It is demonstrated that the configurational-force fatigue model is able to provide a more convenient and accurate procedure to predict the mixed mode Elastic-Plastic fatigue crack propagation and lifetime.

G J Ball - One of the best experts on this subject based on the ideXlab platform.

  • 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, 2017
    Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G Leighton
    Abstract:

    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.

  • 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, 2017
    Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G Leighton
    Abstract:

    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.

  • 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, 2017
    Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G Leighton
    Abstract:

    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.

  • 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, 2017
    Co-Authors: C K Turangan, G J Ball, A R Jamaluddin, T G Leighton
    Abstract:

    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)