Results 31 to 40 of about 654 (174)

Discrete and Phase Field Methods for Linear Elastic Fracture Mechanics: A Comparative Study and State-of-the-Art Review

open access: yesApplied Sciences, 2019
Three alternative approaches, namely the extended/generalized finite element method (XFEM/GFEM), the scaled boundary finite element method (SBFEM) and phase field methods, are surveyed and compared in the context of linear elastic fracture mechanics ...
Adrian Egger   +6 more
doaj   +1 more source

Numerical Investigation of Stress Intensity and Geometry Correction Factors in Welded Longitudinal Stiffener Details

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 7, Page 2654-2669, July 2026.
ABSTRACT The safe operation of aging steel railway bridges requires reliable fatigue assessment of welded structural details. Welded longitudinal stiffeners, while not directly loaded, influence structural stiffness and are susceptible to fatigue cracking at weld transitions.
Dorina Siebert   +3 more
wiley   +1 more source

Fracture Assessment of DEMO Divertor Components Under Thermo‐Mechanical Loads

open access: yesMacromolecular Symposia, Volume 415, Issue 3, June 2026.
ABSTRACT Nuclear fusion represents a promising pathway toward large‐scale, sustainable, and low‐impact energy production. However, the extreme operating conditions within fusion reactors, characterized by high temperatures, intense neutron irradiation, and severe mechanical and magnetic loads, place significant demands on the structural integrity of ...
A. Cuccurullo   +3 more
wiley   +1 more source

Towards a fracture mechanics-based fatigue assessment of lattice structures obtained from additive manufacturing of metallic powders

open access: yesMaterials & Design
Additive Manufacturing (AM) technologies are at the forefront of technological development in machine design as they allow the production of complex parts with high stiffness-to-weight ratios, such as lattice structures, that conventional production ...
Francesco Collini, Giovanni Meneghetti
doaj   +1 more source

Hydraulic fracture optimization by using a modified Pseudo-3D model in multi-layered reservoirs

open access: yesJournal of Natural Gas Geoscience, 2018
The aim of hydraulic fracturing optimization is to maximize well productivity index by optimizing fracture geometry parameters. Height in geometry calculation is the most important parameter, especially in the multi-layered reservoirs due to the ...
Aboozar Garavand   +1 more
doaj   +1 more source

Seasonal Ice Dynamics Control the Timing of Crevasse Drainage at a Fast‐Flowing Outlet Glacier

open access: yesAGU Advances, Volume 7, Issue 3, June 2026.
Abstract Crevasse field drainage transfers at least half of the seasonal runoff from the surface to the bed of the Greenland Ice Sheet, but the patterns of drainage are complex and spatio‐temporally heterogenous. To better understand controls on crevasse drainage processes, we use an automated deep learning method to map the seasonal filling and ...
T. R. Chudley   +7 more
wiley   +1 more source

Thermal fracture characteristics of an interface crack subjected to temperature variations

open access: yesProduction Engineering Archives, 2020
Thermal fracture characteristics – the thermal energy release rate and thermal stress intensity factor of a semi-infinite crack at an interface between the two elastic isotropic materials, subjected to the temperature variations, are considered in this ...
Kalinović Saša M.   +3 more
doaj   +1 more source

Multi‐Scale Rate‐ and Roughness‐Dependent Frictional Constitutive Law and Dynamic Earthquake Sequence Simulation

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.
Abstract The physical mechanisms that govern the multi‐scale source properties of earthquakes, such as fracture energy scaling, where the dynamic energy dissipation of earthquakes scales with fault slip, remain debatable. We introduced the rate‐ and roughness‐dependent friction (RRF) law which accounts for the multi‐scale roughness evolution of the ...
Reiju Norisugi, Hiroyuki Noda
wiley   +1 more source

Influence of Surface Flaw Interaction on Failure Assessment Diagram in the Framework of Fitness‐for‐Service Procedures

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 5, Page 1877-1894, May 2026.
ABSTRACT This study investigates the influence of closely spaced surface‐flaw interaction on failure assessment diagrams (FADs) used in fitness‐for‐service evaluations, addressing the conservatism introduced when standards such as BS 7910 and API 579 recharacterize interacting flaws as a single bounding crack.
Gabriel de Castro Coêlho   +3 more
wiley   +1 more source

An Improved Mesh Stiffness Model for a Gear Tooth With Double Cracks on Both Sides Considering Opened and Closed States

open access: yesInternational Journal of Mechanical System Dynamics, Volume 6, Issue 1, Page 119-139, March 2026.
ABSTRACT Research on the failure mechanisms of gears with multiple cracks has gained widespread attention. Among these, the study of the mesh stiffness characteristics of gears with multiple cracks is crucial for optimizing gear design and improving transmission reliability.
Luyan Xu, Xin Yu, Yunyun Sun
wiley   +1 more source

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