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Conventional and Unconventional Plastic Response and Representation
Applied Mechanics Reviews, 1988The development and the present state of a few key aspects of the theory of plasticity are sketched as a guide to the literature for those new to or not centrally involved in the subject. Only a small fraction of this extensive literature is cited. Special attention is paid to the frequently inspirational but more often misleading influence of the ...
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Remaining at Yield During Unloading and Other Unconventional Elastic-Plastic Response
Journal of Applied Mechanics, 1987A rather special time-independent or elastic-plastic response is proposed in which, although there is elastic response to unloading, the material remains at yield for all or a significant portion of the unloading path following plastic deformation. In the most elementary form, the material exhibits no memory of prior plastic deformation; the current ...
D. C. Drucker, Devo Seereeram
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Advanced Functional Materials, 2023
AbstractUnderstanding the plastic behavior of crack tips is crucial for improving the fracture toughness of nanometals. Although many studies are carried out, most previous studies focus on pure metals, and how the crack tip accommodates the plastic deformation of highly concentrated solid‐solution alloys is unclear owing to a lack of direct atomic ...
Chengpeng Yang +11 more
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AbstractUnderstanding the plastic behavior of crack tips is crucial for improving the fracture toughness of nanometals. Although many studies are carried out, most previous studies focus on pure metals, and how the crack tip accommodates the plastic deformation of highly concentrated solid‐solution alloys is unclear owing to a lack of direct atomic ...
Chengpeng Yang +11 more
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Unconventional Approaches to Chemmotology Research on Plastic Lubricants
Chemistry and Technology of Fuels and Oils, 2014This is a review of unconventional approaches to development of long-performing standardized plastic lubricants in order to ensure reliability of modern energy-intensive and high-precision technology. Methods are presented for selection of the dispersion medium according to its molecular structure and tribochemical stability and for selection of the ...
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Journal of Alloys and Compounds, 2020
Abstract With regard to medical applications, the need for producing high-strength titanium-based materials continues to rise due to the fact that pure titanium is characterized by low mechanical properties, yet remarkable corrosion resistance and biocompatibility.
Daniel Wojtas +10 more
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Abstract With regard to medical applications, the need for producing high-strength titanium-based materials continues to rise due to the fact that pure titanium is characterized by low mechanical properties, yet remarkable corrosion resistance and biocompatibility.
Daniel Wojtas +10 more
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Update of Conventional and Unconventional Plastic Response and Representation
Applied Mechanics Reviews, 1996The primary purpose of this update is to outline progress that has been made in three directions: 1) exhibiting the real but limited instability of configuration and instability of path for loaded homogeneous specimens of a material model that obeys a non-associated flow rule; 2) exploring the roles of inhomogeneity of material and of stress as ...
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3D subsidence analyses above gas reservoirs accounting for an unconventional plasticity model
International Journal for Numerical and Analytical Methods in Geomechanics, 2011SUMMARYThe coupled hydro‐mechanical state in soils coming from consolidation/subsidence processes and undergoing plasticity phenomena is here evaluated by means of the subloading surface model. The most important feature of this theory is the abolition of the distinction between the elastic and plastic domains, as it happens in the conventional ...
Valentina A. Salomoni, Riccardo Fincato
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Dislocation Cores and Unconventional Properties of Plastic Behavior
2005Dislocations are line defects found in all crystalline materials and their motion produces plastic flow. The notion of dislocations has two starting points. First, the dislocation was introduced as an elastic singularity by considering the deformation of a body occupying a multiply connected region of space.
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Solid State Phenomena, 2005
Aluminium and copper monocrystals and also AlMg5 and AlCu4Zr alloys have been deformed by the cyclic extrusion compression method (CEC) in the range of true strains φ = 0.4 -14. It has been found, that about 50% of the volume fraction of aluminium alloys samples, deformed to the true strain φ = 14, shows features of nanostructure.
Maria W. Richert +3 more
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Aluminium and copper monocrystals and also AlMg5 and AlCu4Zr alloys have been deformed by the cyclic extrusion compression method (CEC) in the range of true strains φ = 0.4 -14. It has been found, that about 50% of the volume fraction of aluminium alloys samples, deformed to the true strain φ = 14, shows features of nanostructure.
Maria W. Richert +3 more
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Unconventional Barrel Designs of Single-screw Plasticizing Systems
2017Extrusion is one of the most important processes in polymer processing technology, just next to injection molding. The first extruder was invented and patented in 1879 by Matthew Gray, which used Archimedes screw in its design [1]. Since that time, constantly work on improving the work of extruders was carried out, which are implemented in two ...
Majewski, Łukasz, Sasimowski, Emil
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