Results 41 to 50 of about 22,796,336 (236)
Quasi-static crack propagation by Griffith's criterion [PDF]
, 2008 We consider the propagation of a crack in a brittle material along a prescribed crack path and define a quasi-static evolution by means of stationary points of the free energy. We show that this evolution satisfies Griffith's criterion in a suitable form
Negri, Matteo +4 more
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Collaterals are crucial factors that influence the infarct growth rate (IGR). We aimed to determine whether a comprehensive multimodal collateral score (MCS), incorporating collateral assessment at the arterial, tissue, and venous levels, is associated with functional independence and provides incremental prognostic value over ...
Giorgio Busto +12 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
NUMERICAL ANALYSIS OF CRACK PROPAGATION IN A STEEL SPECIMEN UNDER BENDING [PDF]
Applied Computer Science, 2015 The paper compares numerically modeled crack propagation in a steel specimen with a real process of fiber separation. The objective of the study was to perform numerical analysis of crack propagation in order to determine the shape of a crack and the ...
Patryk RÓŻYŁO
doaj
A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions
Advanced Engineering Materials, EarlyView.This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice +2 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar +2 more
wiley +1 more source
Analysis of fatigue crack propagation mechanism of Ni3Al under supergravity at atomic size
AIP Advances, 2022 Mechanisms of fatigue crack propagation of Ni3Al alloy under supergravity are studied by the molecular dynamics method. The initial model of the crack is a [100](010) crack in Ni3Al.
Lei Ma +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source
Design and analysis of welded aircraft wing panels [PDF]
, 2005 Nowadays, increasing manufacturing cost effectiveness becomes a vital condition for the commercial success of the next generation of large wide body aircrafts.
Theos, Athanasios
core +4 more sources
Study on Crack Propagation of Steel for Coiled Tubing Based on Extended Finite Element Method
Shiyou jixie, 2019 Fatigue crack propagation is the main cause of coiled tubing failure. To address the cumbersome testing study work of the crack propagation process of steel for coiled tubing, the extended finite element method (XFEM) was introduced for analysis.
Shi Jiangang +5 more
doaj