The Experts below are selected from a list of 324 Experts worldwide ranked by ideXlab platform

Sang Hyuk Im - One of the best experts on this subject based on the ideXlab platform.

  • transferable crack free colloidal crystals on an Elastomeric Matrix with surface relief
    Advanced Functional Materials, 2013
    Co-Authors: Sang Hyuk Im
    Abstract:

    Crack-free three-dimensional (3D) colloidal silica crystals are fabricated on an Elastomeric polydimethylsiloxane (PDMS) stamp via the lift-up method. A surface relief structure is fabricated on the PDMS substrate to enable the formation of colloidal crystal assemblies that cannot be achieved on a plane PDMS substrate owing to the hydrophobic nature of its surface. Four samples of uniform silica particles having different sizes are prepared for colloidal crystal assembly on PDMS substrates with various relief patterns. This strategy not only provides a means for the assembly of crack-free colloidal crystals on a soft hydrophobic surface via the lift-up method but enables the transfer of the crack-free colloidal crystals onto a curved surface.

  • Transferable crack-free colloidal crystals on an Elastomeric Matrix with surface relief
    Advanced Functional Materials, 2013
    Co-Authors: Mi Ri Kim, Youn Sang Kim, Sang Hyuk Im, Kuk Young Cho
    Abstract:

    Crack-free three-dimensional (3D) colloidal silica crystals are fabricated on an Elastomeric polydimethylsiloxane (PDMS) stamp via the lift-up method. A surface relief structure is fabricated on the PDMS substrate to enable the formation of colloidal crystal assemblies that cannot be achieved on a plane PDMS substrate owing to the hydrophobic nature of its surface. Four samples of uniform silica particles having different sizes are prepared for colloidal crystal assembly on PDMS substrates with various relief patterns. This strategy not only provides a means for the assembly of crack-free colloidal crystals on a soft hydrophobic surface via the lift-up method but enables the transfer of the crack-free colloidal crystals onto a curved surface. 3D Crack-free colloidal assembly onto soft hydrophobic surface via the lift-up method is demonstrated. A surface relief structure on a PDMS substrate enables the formation of colloidal crystal assemblies that cannot be achieved on a plane PDMS substrate owing to the hydrophobic nature of its surface. Different relief patterns (cylindrical, cross-shaped, and long rectangular) and different sizes of uniform silica particles from 190 to 300 nm are investigated. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Kuk Young Cho - One of the best experts on this subject based on the ideXlab platform.

  • Transferable crack-free colloidal crystals on an Elastomeric Matrix with surface relief
    Advanced Functional Materials, 2013
    Co-Authors: Mi Ri Kim, Youn Sang Kim, Sang Hyuk Im, Kuk Young Cho
    Abstract:

    Crack-free three-dimensional (3D) colloidal silica crystals are fabricated on an Elastomeric polydimethylsiloxane (PDMS) stamp via the lift-up method. A surface relief structure is fabricated on the PDMS substrate to enable the formation of colloidal crystal assemblies that cannot be achieved on a plane PDMS substrate owing to the hydrophobic nature of its surface. Four samples of uniform silica particles having different sizes are prepared for colloidal crystal assembly on PDMS substrates with various relief patterns. This strategy not only provides a means for the assembly of crack-free colloidal crystals on a soft hydrophobic surface via the lift-up method but enables the transfer of the crack-free colloidal crystals onto a curved surface. 3D Crack-free colloidal assembly onto soft hydrophobic surface via the lift-up method is demonstrated. A surface relief structure on a PDMS substrate enables the formation of colloidal crystal assemblies that cannot be achieved on a plane PDMS substrate owing to the hydrophobic nature of its surface. Different relief patterns (cylindrical, cross-shaped, and long rectangular) and different sizes of uniform silica particles from 190 to 300 nm are investigated. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

M E R Shanahan - One of the best experts on this subject based on the ideXlab platform.

  • a novel inflation adhesion test for Elastomeric Matrix steel cord
    International Journal of Solids and Structures, 2019
    Co-Authors: K Kane, Julien Jumel, F Lallet, A Mbiakopngassa, J M Vacherand, M E R Shanahan
    Abstract:

    Abstract A novel test configuration is proposed to characterize the adhesion between an Elastomeric Matrix and an included steel cord. The circular cylindrical, rubber envelope is bonded to the cord along the axis of symmetry. A crack is forced to propagate along the interface by inflating the rubber envelope using a pressurised liquid in between the two media. The constant pressure recorded during the test is used to evaluate the interfacial critical strain energy release rate (Critical SERR). This is achieved using an analytical model, taking into account both the incompressible, hyperelastic nature of the rubber and geometrical nonlinearity due to large deformations. An energy balance is proposed to evaluate the interfacial SERR.

  • A Novel Inflation Adhesion Test for Elastomeric Matrix / Steel Cord
    International Journal of Solids and Structures, 2019
    Co-Authors: K Kane, Julien Jumel, F Lallet, J M Vacherand, A. Mbiakop-ngassa, M E R Shanahan
    Abstract:

    Abstract A novel test configuration is proposed to characterize the adhesion between an Elastomeric Matrix and an included steel cord. The circular cylindrical, rubber envelope is bonded to the cord along the axis of symmetry. A crack is forced to propagate along the interface by inflating the rubber envelope using a pressurised liquid in between the two media. The constant pressure recorded during the test is used to evaluate the interfacial critical strain energy release rate (Critical SERR). This is achieved using an analytical model, taking into account both the incompressible, hyperelastic nature of the rubber and geometrical nonlinearity due to large deformations. An energy balance is proposed to evaluate the interfacial SERR.

Mi Ri Kim - One of the best experts on this subject based on the ideXlab platform.

  • Transferable crack-free colloidal crystals on an Elastomeric Matrix with surface relief
    Advanced Functional Materials, 2013
    Co-Authors: Mi Ri Kim, Youn Sang Kim, Sang Hyuk Im, Kuk Young Cho
    Abstract:

    Crack-free three-dimensional (3D) colloidal silica crystals are fabricated on an Elastomeric polydimethylsiloxane (PDMS) stamp via the lift-up method. A surface relief structure is fabricated on the PDMS substrate to enable the formation of colloidal crystal assemblies that cannot be achieved on a plane PDMS substrate owing to the hydrophobic nature of its surface. Four samples of uniform silica particles having different sizes are prepared for colloidal crystal assembly on PDMS substrates with various relief patterns. This strategy not only provides a means for the assembly of crack-free colloidal crystals on a soft hydrophobic surface via the lift-up method but enables the transfer of the crack-free colloidal crystals onto a curved surface. 3D Crack-free colloidal assembly onto soft hydrophobic surface via the lift-up method is demonstrated. A surface relief structure on a PDMS substrate enables the formation of colloidal crystal assemblies that cannot be achieved on a plane PDMS substrate owing to the hydrophobic nature of its surface. Different relief patterns (cylindrical, cross-shaped, and long rectangular) and different sizes of uniform silica particles from 190 to 300 nm are investigated. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Ali Zghal - One of the best experts on this subject based on the ideXlab platform.

  • damage of Elastomeric Matrix composites emc rubbers under static loading conditions experimental and numerical study
    INTERNATIONAL CONFERENCE ON ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES (AMPT2010), 2011
    Co-Authors: F Ayari, E Bayraktar, Ali Zghal
    Abstract:

    Elastomeric Matrix composites (EMC‐rubbers) are considered as isotropic hyper elastic incompressible materials under static loading conditions. As a rubber material element cannot be extended to an infinite stretch ratio, a damage mechanism at large strain is considered. The phenomenon of cavitation plays an important role in the damage of EMCs and influences the toughening mechanism of rubber‐modified plastics. Indeed, cavitation in elastomers is thought to be initiated from flaws, which grow primarily due to a hydrostatic tensile stress and ahead of the crack; there will not only be a high stress perpendicular to the plane of the crack but also significant stress components in the other direction. However, there exists historically much discussion on the evolution of the cavitation in elastomers under monotonic and/or static solicitation. Mainly, cavitation instability occurs when the stress levels are sufficiently high so that the void expansion rate becomes infinitely large. Many research works have b...

  • Damage of Elastomeric Matrix Composites (EMC‐rubbers) Under Static Loading Conditions: Experimental and Numerical Study
    2011
    Co-Authors: F Ayari, E Bayraktar, Ali Zghal
    Abstract:

    Elastomeric Matrix composites (EMC‐rubbers) are considered as isotropic hyper elastic incompressible materials under static loading conditions. As a rubber material element cannot be extended to an infinite stretch ratio, a damage mechanism at large strain is considered. The phenomenon of cavitation plays an important role in the damage of EMCs and influences the toughening mechanism of rubber‐modified plastics. Indeed, cavitation in elastomers is thought to be initiated from flaws, which grow primarily due to a hydrostatic tensile stress and ahead of the crack; there will not only be a high stress perpendicular to the plane of the crack but also significant stress components in the other direction. However, there exists historically much discussion on the evolution of the cavitation in elastomers under monotonic and/or static solicitation. Mainly, cavitation instability occurs when the stress levels are sufficiently high so that the void expansion rate becomes infinitely large. Many research works have b...