Results 81 to 90 of about 483 (196)
Dual integrals in non-linear fracture mechanics
We propose a dual approach in fracture mechanics based on complementary energy. The analysis of the dissipation shows that the thermodynamical force associated with the evolution of a crack is an energy release rate, form of which depends on the presence
Claude Stolz
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The Tikhonov regularization method in elastoplasticity
The numeric simulation of the mechanical behaviour of industrial materials is widely used in the companies for viability verification, improvement and optimization of designs. The eslastoplastic models have been used for forecast of the mechanical behaviour of materials of the most several natures (see [1]).
Azikri de Deus, Hilbeth P. +3 more
openaire +3 more sources
ABSTRACT This study presents a three‐dimensional cohesive phase field framework for simulating quasi‐static fracture in Gyroid lattice structures. To the authors' knowledge, this is one of the first experimentally validated applications of a diffuse cohesive phase field model to describe damage and fracture evolution in additively manufactured ...
Deison Preve +4 more
wiley +1 more source
Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li +5 more
wiley +1 more source
Generalized Lagrange Multipliers in Elastoplastic Torsion
It has been shown that for a solution \(u \in K = \{u \in H^ 1_ 0(\Omega) : | Dv(x)| \leq 1\) a.e. in \(\Omega\}\) of the problem \(\min_{v \in K} \bigl\{ \int_ \Omega f(x,Dv) dx - \int_ \Omega gv dx\biggr \}\), where \(f(x,\cdot)\) is strictly convex for a.e. \(x \in \Omega\), \(\alpha | \xi|^ 2 \leq f(x,\xi) \leq A(1 + | \xi|^ 2)\) for a.e.
V. C. PIAT, PERCIVALE, DANILO
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Sequential Balloon Modeling for Robust Percutaneous Transluminal Angioplasty Simulation
A sequential balloon modeling (SBM) strategy is proposed to simulate percutaneous balloon angioplasty (PTA) on severe stenosis and estimate post PTA permanent‐set in soft tissues. This strategy promotes simulation robustness. It is combined with a single‐stenosis parametric model and applied to a patient‐case reproduced using the parametric model as ...
Clément Joly +3 more
wiley +1 more source
Finite Element Modelling of Rocking and Hybrid Precast Walls under Seismic Loading
ABSTRACT In recent years, self‐centring systems have received considerable research interest in the seismic design of precast concrete structures for their ability to limit damage and satisfy resilience requirements. Rocking and hybrid structural walls, characterised by the formation of a single gap at the wall–foundation interface, mitigate damage by ...
Andrea Belleri +3 more
wiley +1 more source
ABSTRACT Magnesium oxide (MgO) serves as a model material for plastically deformable ceramics. In previous studies, it has mainly been investigated via uniaxial compression, with studies often focusing on a particular deformation mechanism and temperature range. In this work, the novel high temperature scanning indentation (HTSI) nanoindentation method
Marcel Sos +3 more
wiley +1 more source
ABSTRACT Limit analysis and yield design provide a well‐defined mathematical framework for upscaling the strength properties of heterogeneous materials. These techniques can be incorporated into an FFT‐based computational micromechanics framework to evaluate the strength of heterogeneous materials, based on images of their microstructure.
Elodie Donval, Matti Schneider
wiley +1 more source
The features of the mechanical behavior of materials under complex stress and large deformations preceding the failure is an urgent research problem. An experimental and numerical analysis of the features of the processes of elastoplastic deformation of ...
V.G. Bazhenov +3 more
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