...Weike Yuan; Xinrui Niu; Gangfeng Wang Owing to the significant effects of adhesive force and surface/membrane tension, the classical contact models often fail to describe the indentation responses of soft materials and biological systems. This work addresses the axisymmetric indentation...

...Harman Khungura; Mattia Bacca We propose here an asymptotic solution defining the optimal compliance distribution for a fibrillar adhesive to obtain maximum theoretical strength. This condition corresponds to that of equal load sharing (ELS) among fibrils, i.e., all the fibrils are carrying...

...Manar Samri; Attila Kossa; René Hensel Polymer adhesive films sandwiched between two rigid solids are a common bonding strategy. The mechanics and consequently the adhesion of such geometrically confined films depend mainly on their thickness, Young's modulus, and the Poisson's ratio...

...Lei Zhang; C. Q. Ru Surface energy outside the contact zone, which is ignored in the classical Johnson–Kendall–Roberts (JKR) model, can play an essential role in adhesion mechanics of soft bodies. In this work, based on a simple elastic foundation model for a soft elastic half space with constant...

... of a vesicle. Here, we analyze shape changes of axisymmetric vesicles that are under simultaneous influence of adhesion, micropipette aspiration, and irradiation. We study both the equilibrium and kinetics of shape changes and compare our results with experiments. The tension–area relation of a membrane, which...

...-electronics. In this paper, a finite-deformation model is applied to study the adhesion of parallel multiwall nanotubes with both partial and full collapsing, in which the noncontact adhesion energy is analytically determined. The analytical solutions of both configurations and energies of collapsed nanotubes...

.... Of particular interest is the relationship between the van der Waals interactions and measurable quantities in corresponding blister tests, with which both the adhesion energy of graphene and the equilibrium separation for the van der Waals interactions may be determined. In comparison with approximate...

... A new Tabor's parameter ψ is defined for adhesion-delamination of thin membranes. A small ψ corresponds to a thick, small, and stiff membrane under the influence of a long-range weak surface force, as in the Derjaguin–Muller–Toporov (DMT) limit. A large ψ corresponds to a thin, large, and flexible...

... and the skin. These results improve the performance of EES by maximizing intimate contact between the EES and skin, revealing important underlying physical insights for device optimization and future design. epidermal electronics interfacial delamination adhesion The monitoring of physiological...

... and van der Waals attraction according to the Derjaguin–Landau–Verwey–Overbeek (DLVO) theory, the shell deforms and settles in either the primary (1min) or secondary (2min) energy minimum depending on whether it has sufficient energy to overcome the repulsive energy barrier. The adhesion-detachment...

... for the numerical treatment of particle-fluid interactions. The particle properties are constitutively described by an adhesive viscoelastic model. To compute the hydrodynamic forces, a direct integration method is employed, where the fluid stresses are integrated over the particles’ surfaces. For the purpose...

...Amit Pathak; Robert M. McMeeking; Anthony G. Evans; Vikram S. Deshpande Cells communicate with their external environment via focal adhesions and generate activation signals that in turn trigger the activity of the intracellular contractile machinery. These signals can be triggered by mechanical...

...Zhenyu Ouyang; Gefu Ji; Guoqiang Li Bimaterial systems in which two dissimilar materials are adhesively joined by a thin adhesive interlayer have been widely used in a variety of modern industries and engineering structures. It is well known that interfacial fracture is the most common failure mode...

...Yin Zhang; Ya-pu Zhao Because of the large aspect ratio of its length to radius and the large surface area to volume ratio, the nanowire is highly flexural and susceptible to the adhesion influence. The bending deflection of nanowire and its adhesion effect make the previous indentation models...

...Carmel Majidi; Kai-tak Wan Energy principles are used to investigate the adhesion of two parallel thin cylindrical shells under external compressive and tensile loads. The total energy of the system is found by adding the strain energy of the deformed cylinder, the potential energy of the external...

..., e.g., modulus from experimental pressure/deflection data or interface toughness from debond size/injected volume data. This is illustrated using experiments to quantify the interfacial adhesion energy between an initially dry polydimethylsiloxane-glass interface via bulge testing under controlled...

... adhesion paper paper making machines Young's modulus paper machine web breaks open-draw runnability transient boundary conditions release point particle simulation mechanics Web breaks of the paper web in the wet end of a paper machine are a major issue for many of today’s paper...

... at the delamination front, the adhesion-delamination mechanics is obtained by a thermodynamic energy balance. Interrelations between the instantaneous applied load, punch displacement, and contact circle, and the resulting critical thresholds of “pinch-off,” “pull-off,” and “pull-in” are derived from the first...

...: adhesion 16 06 2009 2009 American Society of Mechanical Engineers ...

... bristles of two brushes when pressed together. The adhesive strength of the system is promoted by high elastic modulus, high friction coefficient, large aspect ratio, and dense packing of the fibers. However, the design is limited by the compressive buckling, the compressive indentation or cracking...