Results 1 to 10 of about 698,061 (163)
Simulation of multi-contact wave strain hardening [PDF]
MATEC Web of Conferences, 2019 The article raises the problem of reducing pressure in the deformation zone during hardening of plastic materials by shock pulses. It is proposed to use the method of wave strain hardening and its multi-contact loading scheme as its solution.
Kirichek Andrey +2 more
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Entropy, 2017 Assembly accuracy significantly affects the performance of precision mechanical systems. In this study, an entropy-based evaluation method for contact strain-energy distribution is proposed to predict the assembly accuracy.
Yan Fang +3 more
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OPTIMISATION PROCEDURE OF INNER GEOMETRY IN SPHERICAL ROLLER BEARINGS WITH REGARD TO THEIR DURABILITY [PDF]
Scientific Journal of Silesian University of Technology. Series Transport, 2020 This article deals with an optimisation procedure of inner geometry of rolling elements designed for spherical roller bearings. A process of selection of the most appropriate solution to increase spherical roller bearing durability is understood under ...
Ján ŠTEININGER +3 more
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Quasistatic Viscoelasticity with Self-Contact at Large Strains [PDF]
Journal of Elasticity, 2020 The frame-indifferent viscoelasticity in Kelvin-Voigt rheology at large strains is formulated in the reference configuration (i.e. using the Lagrangian approach) considering also the possible self-contact in the actual deformed configuration. Using the concept of 2nd-grade nonsimple materials, existence of certain weak solutions which are a.e ...
Stefan Krömer, Tomáš Roubíček
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Internal contact modeling for finite strain topology optimization [PDF]
Computational Mechanics, 2021 The present work proposes an extension of the third medium contact method for solving structural topology optimization problems that involve and exploit self-contact. A new regularization of the void region, which acts as the contact medium, makes the method suitable for cases with very large deformations.
Bluhm, Gore Lukas; id_orcid 0000-0002-5440-5914 +2 more
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Communications, 2020 The article deals with an optimization procedure of roller elements geometry with regard to durability of spherical roller bearings. The aim of the article is to examine the impact of change of the roller elements inner geometry on durability and ...
Jan Steininger +3 more
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Contact of Rough Surfaces: An Incremental Model Accounting for Strain Gradient Plasticity
Lubricants, 2023 In the contact of rough surfaces, most contact patches are at the scale of micrometers, and thus, their contact deformation can be dominated by the size-dependent plasticity. In this paper, we propose a new strategy to analyze the role of strain gradient
Chunyun Jiang +3 more
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First-contact-breaking distributions in strained disordered crystals
Physical Review E, 2022 We derive exact probability distributions for the strain ($ε$) at which the first stress drop event occurs in uniformly strained disordered crystals, with quenched disorder introduced through polydispersity in particle sizes. We characterize these first stress drop events numerically as well as theoretically, and identify them with the first contact ...
Roshan Maharana +2 more
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Frontiers in Mechanical Engineering, 2020 Indentation measurements are a crucial technique for measuring mechanical properties. Although several contact models have been developed to relate force-displacement measurements with the mechanical properties, they all consider simplifying assumptions,
Hamid Ghaednia +4 more
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Dynamic finite element simulation of wheel–rail contact response for the curved track case
Transport, 2022 The wheel–rail interaction will be intensified on account of the complexity of the wheel–rail contact geometry on a curved track. It also may become more complicated and/or have significant difference as the train speed increases, since the dynamic ...
Xiongfei Zhou, Lin Jing, Xiaoqi Ma
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