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von Mises yield criterion

About: von Mises yield criterion is a research topic. Over the lifetime, 4374 publications have been published within this topic receiving 82642 citations. The topic is also known as: Von Mises stress.


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TL;DR: In this paper, a finite element simulation of stress evolution in thin metal film during electromigration is reported, where the electromigration process is modeled by a coupled diffusion-mechanical partial differential equations (PDEs).
Abstract: A finite element simulation of stress evolution in thin metal film during electromigration is reported in this paper. The electromigration process is modeled by a coupled diffusion- mechanical partial differential equations (PDEs). The PDEs are implemented with a plane strain formulation and numerically solved with the finite element (FE) method. The evolutions of hydrostatic stress, each component of the deviatoric stress tensor, and Von Mises' stress were simulated for several cases with different line lengths and current densities. Two types of displacement boundary conditions are considered. The simulation results are compared with Korhonen's analytical model and Black and Blech's experimentalesults.

52 citations

Journal ArticleDOI
TL;DR: In this article, a short account of the stress-dilatancy theory with particular reference to the concepts of the upper ocv and lower oμ, limits is given and conditions under which these limits are approached employing stress paths involving both loading and unloading in triaxial compression and extension.
Abstract: Synopsis Certain design problems in soil mechanics should be treated as deformation rather than failure problems and to this end incremental stress-strain relations must be developed for different types of soil. The incremental strain rate ratio given by the stress-dilatancy relation may prove valuable in such studies. A short account is given of the stress-dilatancy theory with particular reference to the concepts of the upper ocv and lower oμ, limits. The main object of the Paper is to investigate the conditions under which these limits are approached employing stress paths involving both loading and unloading in triaxial compression and extension. A major part of the Paper is devoted to a critical discussion of errors involved in drained triaxial tests on sand and to certain modifications developed to minimize these errors. The peak or failure points in the various tests have been studied to assess the failure criteria commonly applied to soils. It is shown that the extended Von Mises and Tresca criter...

52 citations

Journal ArticleDOI
TL;DR: In this paper, the electron kinetic theory approach is employed to model the heating process of gold, and the results of thermo-elastic analysis due to the temperature field predicted in the previous study are given here.

52 citations

Journal ArticleDOI
TL;DR: In this paper, an isothermal elasto-plastic asperity contact model is developed and presented, which deals with micro plastic flows of materials and the influence of the elastoflastic deformation of materials on the behavior of contacting surfaces.
Abstract: An isothermal elasto-plastic asperity contact model is developed and presented in this paper, which deals with micro plastic flows of materials and the influence of the elasto-plastic deformation of materials on the behavior of contacting surfaces. The model is solved with the incremental form of a simplex-type algorithm. The von Mises yield criterion is used to determine the onset of the plastic deformation. The effectiveness and validity of the model are studied through analyzing a Hertzian contact problem. Substrate stresses are calculated and differences are observed. Furthermore, the contact pressure, real area of contact, and average gap of real rough surfaces under the elastic, elastic-perfectly-plastic, and the elasto-plastic contact conditions are numerically investigated and the results are compared. Presented at the 56th Annual Meeting Orlando, Florida May 20–24, 2001

52 citations

Journal ArticleDOI
TL;DR: 2-P implants experience higher mechanical stress under oblique loading, but the 1-P- or 2-P morse-taper nature of an implant is not a decisive factor for the magnitude and distribution of stresses, and displacements in supporting tissues.
Abstract: Purpose: To compare force transmission behaviors of one-piece (1-P) and two-piece (2-P) morse-taper oral implants. Material and methods: A three-dimensional finite element model of a morse-taper oral implant and a solid abutment was constructed separately. The implant–abutment complex was embedded in a O 1.5 cm × 1.5 cm acrylic resin cylinder. Vertical and oblique forces of 50 N and 100 N were applied on the abutment and solved by two different analyses. First, contact analysis was performed in the implant–abutment complex to evaluate a 2-P implant. Then, the components were bonded with a separation force of 1020 N to analyze a 1-P implant. Results: Von Mises stresses in the implant, principal stresses, and displacements in the resin were the same for both designs under vertical loading. Under oblique loading, principal stresses and displacement values in the resin were the same, but the magnitudes of Von Mises stresses were higher in the 2-P implant. The principal stress distributions around both implants in the acrylic bone were similar under both loading conditions. Conclusion: 2-P implants experience higher mechanical stress under oblique loading. Nevertheless, the 1-P- or 2-P morse-taper nature of an implant is not a decisive factor for the magnitude and distribution of stresses, and displacements in supporting tissues.

52 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023319
2022722
2021216
2020226
2019173
2018162