Results 11 to 20 of about 483 (196)
Accounting of plastic deformations in the calculation of frames using the displacement method
Magazine of Civil Engineering, 2023 Method for calculating statically indeterminate frames taking into account plastic deformations, which is based on the use of a schematized diagram of material with hardening is proposed.
Potapov Alexandr, Shturmin Sergei
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Convergence Check Phase-Field Scheme for Modelling of Brittle and Ductile Fractures
Applied Sciences, 2023 The paper proposes a novel staggered phase-field framework for modelling brittle and ductile fractures in monotonic and cyclic loading regimes. The algorithm consists of two mesh layers (displacement and phase field) and a single special-purpose, user ...
Tomislav Lesičar +2 more
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FEM-Based Compression Fracture Risk Assessment in Osteoporotic Lumbar Vertebra L1
Applied Sciences, 2019 This paper presents a finite element method (FEM)-based fracture risk assessment in patient-specific osteoporotic lumbar vertebra L1. The influence of osteoporosis is defined by variation of parameters such as thickness of the cortical shell, the bone ...
Algirdas Maknickas +6 more
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Yantu gongcheng xuebao, 2017 Under the framework of bounding surface plasticity and critical state concept, by introducing the disturbed state concept for hardening variables of elastic behavior, structured yield surface, structured bonding adhesive stress and surface anisotropy, an
YANG Jie 1, 2, 3, YIN Zhen-yu 1,2,3, HUANG Hong-wei 1, 2, JIN Yin-fu 3, ZHANG Dong-mei 1, 2
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Nihon Kikai Gakkai ronbunshu, 2014 The subloading surface model possesses the automatic controlling function to pull back the stress to the yield surface. However, this function is not concerned with the subyield state, i.e.
Koichi HASHIGUCHI +2 more
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Impact Indentation of Metals at the Small Elastoplastic Strain
Механика машин, механизмов и материалов, 2022 The aim of this paper is to study and describe the behavior features of metals under impact loading in the area of elastic-plastic transition, with strains not exceeding 3–4 %, which are typical for measuring the hardness of materials during dynamic ...
Alexander P. Kren
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Nihon Kikai Gakkai ronbunshu, 2014 The implicit stress integration algorithm was devised in the first report by formulating the return-mapping based on the cutting-plane projection and the consistent tangent modulus tensor due to the numerical method for the subloading surface model.
Noriyuki SUZUKI +2 more
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Justification of fracture criteria for salt rocks
Fracture and Structural Integrity, 2022 The study of salt rocks deformation and fracture processes is an essential part of mining parameters justification for mineral salt deposits. The results of uniaxial compression tests on large salt rock specimens are presented as a loading curve and ...
A. Baryakh, A. Tsayukov
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Anisotropic Antiplane Elastoplastic Problem [PDF]
Journal of Siberian Federal University. Mathematics & Physics, 2020 In this work we solve an anisotropic antiplane elastoplastic problem about stress state in a body weakened by a hole bounded by a piecewise-smooth contour. We give the conservation laws which allowed us to reduce calculations of stress components to a contour integral over the contour of the hole.
Senashov, Sergei I. +2 more
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Heredity and evolution laws of flatness defects in steel strip temper rolling processes
工程科学学报, 2015 Three-dimensional temper rolling processes are simulated by nonlinear elastoplastic finite element software called ABAQUS. In this simulation, the initial flatness defects of steel strips are modeled by the temperature field, and the adjustment effect of
LI Bo, ZHANG Qing-dong, ZHANG Xiao-feng
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