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Tom Troczynski - One of the best experts on this subject based on the ideXlab platform.

  • Determination of the Energy dissipated during Peel testing
    Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2001
    Co-Authors: Edith Breslauer, Tom Troczynski
    Abstract:

    During the experimental determination of adhesion strength through a Peel test, the deformation Energy of the Peeled foil, plus frictional losses may constitute a significant portion of the total Peel Energy. When the true adhesion strength is desired, the Energy dissipated in bending of the foil has to be found, whether experimentally or analytically, and deducted from the total Peel Energy. Several works were dedicated to the modeling and calculation of the Energy dissipated through plastic deformation so that the net adhesion Energy could be deduced. Recently, the present authors proposed a simple experimental technique for the determination of the net adhesion strength. The method is not limited to any particular material and can be used successfully for a strain hardening plastic as well as metallic foils. In this work the calculation of the various Energy terms dissipated during the Peel test is carried out, in order to validate the results of the experimental method and to study the effect of the test variables, such as geometry and mechanical properties of the flexible foil. The main parameter that influences the Energy expended during the test is the radius of curvature of the flexible adherend. It is found that the ratio of the total Energy to the adhesion Energy versus this radius of curvature behaves in a complex manner. For a low strength material, the ratio increases with the radius of curvature. For high strength materials, the ratio exhibits a critical radius, at which the ratio is maximal.

Edith Breslauer - One of the best experts on this subject based on the ideXlab platform.

  • Determination of the Energy dissipated during Peel testing
    Materials Science and Engineering A-structural Materials Properties Microstructure and Processing, 2001
    Co-Authors: Edith Breslauer, Tom Troczynski
    Abstract:

    During the experimental determination of adhesion strength through a Peel test, the deformation Energy of the Peeled foil, plus frictional losses may constitute a significant portion of the total Peel Energy. When the true adhesion strength is desired, the Energy dissipated in bending of the foil has to be found, whether experimentally or analytically, and deducted from the total Peel Energy. Several works were dedicated to the modeling and calculation of the Energy dissipated through plastic deformation so that the net adhesion Energy could be deduced. Recently, the present authors proposed a simple experimental technique for the determination of the net adhesion strength. The method is not limited to any particular material and can be used successfully for a strain hardening plastic as well as metallic foils. In this work the calculation of the various Energy terms dissipated during the Peel test is carried out, in order to validate the results of the experimental method and to study the effect of the test variables, such as geometry and mechanical properties of the flexible foil. The main parameter that influences the Energy expended during the test is the radius of curvature of the flexible adherend. It is found that the ratio of the total Energy to the adhesion Energy versus this radius of curvature behaves in a complex manner. For a low strength material, the ratio increases with the radius of curvature. For high strength materials, the ratio exhibits a critical radius, at which the ratio is maximal.

Liliane Leger - One of the best experts on this subject based on the ideXlab platform.

  • role of interfacial resistance to shear stress on adhesive Peel strength
    Langmuir, 2001
    Co-Authors: Nicolas Amouroux, And Jerome Petit, Liliane Leger
    Abstract:

    The adherence of an acrylic tape on silicone elastomers containing various quantities of a silicone MQ resin has been investigated by an instrumented Peel test, along the lines of Newby and Chaudhury's work (Langmuir 1997, 13, 1805−1809; Langmuir 1998, 14, 4865−4872), which gave the first evidence of interfacial slip when a pressure-sensitive adhesive is Peeled from a thin poly(dimethylsiloxane) (PDMS) layer. In the present study, we show that the amplitude of interfacial slip movements is correlated to the composition of the elastomer in MQ resin (small silica-like particles inserted into the elastomer). High slip amplitudes are associated with low MQ resin content and result in weak shear deformations in the adhesive. Thus, depending on the composition of the elastomer, the Peel Energy is dominated either by frictional losses associated with slip at the interface (low MQ resin content) or by viscous dissipation due to shear deformations distributed in the volume of the adhesive (high MQ resin content). ...

Nicolas Amouroux - One of the best experts on this subject based on the ideXlab platform.

  • role of interfacial resistance to shear stress on adhesive Peel strength
    Langmuir, 2001
    Co-Authors: Nicolas Amouroux, And Jerome Petit, Liliane Leger
    Abstract:

    The adherence of an acrylic tape on silicone elastomers containing various quantities of a silicone MQ resin has been investigated by an instrumented Peel test, along the lines of Newby and Chaudhury's work (Langmuir 1997, 13, 1805−1809; Langmuir 1998, 14, 4865−4872), which gave the first evidence of interfacial slip when a pressure-sensitive adhesive is Peeled from a thin poly(dimethylsiloxane) (PDMS) layer. In the present study, we show that the amplitude of interfacial slip movements is correlated to the composition of the elastomer in MQ resin (small silica-like particles inserted into the elastomer). High slip amplitudes are associated with low MQ resin content and result in weak shear deformations in the adhesive. Thus, depending on the composition of the elastomer, the Peel Energy is dominated either by frictional losses associated with slip at the interface (low MQ resin content) or by viscous dissipation due to shear deformations distributed in the volume of the adhesive (high MQ resin content). ...

And Jerome Petit - One of the best experts on this subject based on the ideXlab platform.

  • role of interfacial resistance to shear stress on adhesive Peel strength
    Langmuir, 2001
    Co-Authors: Nicolas Amouroux, And Jerome Petit, Liliane Leger
    Abstract:

    The adherence of an acrylic tape on silicone elastomers containing various quantities of a silicone MQ resin has been investigated by an instrumented Peel test, along the lines of Newby and Chaudhury's work (Langmuir 1997, 13, 1805−1809; Langmuir 1998, 14, 4865−4872), which gave the first evidence of interfacial slip when a pressure-sensitive adhesive is Peeled from a thin poly(dimethylsiloxane) (PDMS) layer. In the present study, we show that the amplitude of interfacial slip movements is correlated to the composition of the elastomer in MQ resin (small silica-like particles inserted into the elastomer). High slip amplitudes are associated with low MQ resin content and result in weak shear deformations in the adhesive. Thus, depending on the composition of the elastomer, the Peel Energy is dominated either by frictional losses associated with slip at the interface (low MQ resin content) or by viscous dissipation due to shear deformations distributed in the volume of the adhesive (high MQ resin content). ...