Results 21 to 30 of about 33,586 (298)
Quantitative imaging of Young’s modulus of solids: A contact-mechanics study [PDF]
Review of Scientific Instruments, 2008 We developed equipment and methods for measuring quantitatively the local Young’s modulus of solids. It consists of an electrodeless langasite oscillator and line antennas, and oscillator vibrations are generated and detected contactlessly. A constant biasing force results from oscillator mass and is independent of surface roughness.
Ogi, H., Inoue, T., Nagai, H., Hirao, M.
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Strain-Dependent Solid Surface Stress and the Stiffness of Soft Contacts
Physical Review X, 2017 Surface stresses have recently emerged as a key player in the mechanics of highly compliant solids. The classic theories of contact mechanics describe adhesion with a compliant substrate as a competition between surface energies driving deformation to ...
Katharine E. Jensen +3 more
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Contact Mechanics of Inflated Circular Membrane under Large Deformation: Analytical Solutions
International Journal of Solids and Structures, 2021 Pressurization of thin elastomeric membranes has been exploited as a key actuation mechanism in soft robotics, leading to soft pneumatic actuators that can deform reversibly upon inflation and deflation. The contact mechanics of an inflated membrane with
Xingwei Yang, Luxia Yu, Rong Long
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SHAPE OPTIMIZATION OF CONTACT PROBLEMS SUBJECT TO MULTIPLE LOAD CASES USING BI-DIRECTIONAL EVOLUTIONARY STRUCTURAL OPTIMIZATION [PDF]
مجله مدل سازی در مهندسی, 2012 Contact problems are one of widely used and important branches in solid mechanics. This paper aims at extending the bi-directional evolutionary structural optimization (BESO) algorithm for optimal contact shape design in structures under the multiple ...
علی Ghoddosian +2 more
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Computer Methods in Applied Mechanics and Engineering, 2018 In this work two mortar-based segment-to-segment contact formulations will be developed for the frictionless finite deformation case: While the first one is derived by consistent variation of all active contributions of a scalar-valued potential subject ...
Michael Hiermeier, W. Wall, A. Popp
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Interplay between Interfacial Energy, Contact Mechanics, and Capillary Forces in EGaIn Droplets
ACS Applied Materials and Interfaces, 2022 Eutectic gallium–indium (EGaIn) is increasingly employed as an interfacial conductor material in molecular electronics and wearable healthcare devices owing to its ability to be shaped at room temperature, conductivity, and mechanical stability.
Shahrouz Amini +5 more
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Contact Mechanics for Solids with Randomly Rough Surfaces and Plasticity [PDF]
Lubricants, 2019 We present experimental results for the elastic and plastic deformation of sandblasted polymer balls resulting from contacts with flat smooth steel and silica glass surfaces. Nearly symmetric, Gaussian-like height probability distributions were observed experimentally before and remarkably, also after the polymer balls were deformed plastically.
Avinash Tiwari +3 more
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Is there solid-on-solid contact in a sphere-wall collision in a viscous fluid? [PDF]
, 2016 We study experimentally the collision between a sphere falling through a viscous fluid, and a solid plate below. It is known that there is a well-defined threshold Stokes number above which the sphere rebounds from such a collision.
S. K. Birwa +3 more
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Fixed Point Theory and Algorithms for Sciences and Engineering, 2022 This paper starts off by the celebrated Knaster–Kuratowski–Mazurkiewicz principle in the formulation by Ky Fan. We provide a novel variant of this principle and build an existence theory for extended real-valued equilibrium problems with general, then ...
Joachim Gwinner
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Computational and experimental diagnostics of the shear properties of greases [PDF]
MATEC Web of Conferences, 2021 The study of the properties of consistent and liquid oils is currently receiving much attention in tribology. This is because lubrication is one of the most effective ways to improve machine durability.
Dykha Aleksandr +3 more
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