Results 81 to 90 of about 483 (196)

Dual integrals in non-linear fracture mechanics

open access: yesVietnam Journal of Mechanics, 2009
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
doaj   +1 more source

The Tikhonov regularization method in elastoplasticity

open access: yesApplied Mathematical Modelling, 2012
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

Generalised Phase Field Modelling of Fracture in Gyroid Structures: Numerical and Experimental Insights Using Additively Manufactured Polylactic Acid (PLA) Specimens

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 13, 15 July 2026.
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

open access: yesAdvanced Engineering Materials, Volume 28, Issue 13, 8 July 2026.
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

open access: yesJournal of Differential Equations, 1994
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
openaire   +1 more source

Sequential Balloon Modeling for Robust Percutaneous Transluminal Angioplasty Simulation

open access: yesInternational Journal for Numerical Methods in Biomedical Engineering, Volume 42, Issue 7, July 2026.
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

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 9, Page 1924-1941, 25 July 2026.
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

Thermally Activated Deformation Mechanisms in MgO Investigated via High Temperature Scanning Indentation

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 7, July 2026.
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

Upscaling the Strength Domain of Heterogeneous Cohesive‐Frictional Materials via a General FFT‐Based Limit Analysis Approach

open access: yesInternational Journal for Numerical Methods in Engineering, Volume 127, Issue 12, 30 June 2026.
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

Numerical and experimental analysis of tension-torsion processes in cylindrical samples made of 09G2S steel under large deformations before destruction

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2018
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
doaj  

Home - About - Disclaimer - Privacy