Results 11 to 20 of about 2,706 (226)

On an Optimal AFEM for Elastoplasticity [PDF]

Computational Methods in Applied Mathematics
Abstract In this paper, optimal convergence for an adaptive finite element algorithm for elastoplasticity is considered. To this end, the proposed adaptive algorithm is established within the abstract framework of the axioms of adaptivity [C. Carstensen, M. Feischl, M. Page and D. Praetorius, Axioms of adaptivity, Comput. Math. Appl.
Miriam Schönauer, Andreas Schröder
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Learning elastoplasticity with implicit layers

Computer Methods in Applied Mechanics and Engineering
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bleyer, Jeremy
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Shape Optimization for Anisotropic Elastoplasticity in Logarithmic Strain Space [PDF]

, 2011
This paper deals with shape optimization for anisotropic elastoplasticity in logarithmic strain space. We aim to find an appropriate undeformed configuration of a workpiece knowing in advance its deformed configuration, the boundary conditions and the ...
Germain, S., Steinmann, P.
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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
doaj   +1 more source

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, Vidmantas Alekna, Oleg Ardatov, Olga Chabarova, Darius Zabulionis, Marija Tamulaitienė, Rimantas Kačianauskas   +6 more
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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, Tomislav Polančec, Zdenko Tonković   +2 more
doaj   +1 more source

Bounding surface plasticity model for structured clays using disturbed state concept-based hardening variables

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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Elastoplastic deformation analysis by return-mapping and consistent tangent modulus tensor based on subloading surface model (1st Report, Formulation of return-mapping)

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, Noriyuki SUZUKI, Masami UENO   +2 more
doaj   +1 more source

Elastoplastic deformation analysis by return-mapping and consistent tangent modulus tensor based on subloading surface model (2st Report, Deformation analyses of machine elements)

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, Koichi HASHIGUCHI, Masami UENO   +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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