Results 1 to 10 of about 49,270 (307)

Statistical Modeling of Fatigue Crack Growth

open access: yesJournal of the Mechanical Behavior of Materials, 2002
The objective of this research is to fit normal and lognormal distributions to fatigue crack growth rate (da/dN) data and present the data in terms of cumulative frequency distribution (f (x)) and a variant of da/dN and mode I stress intensity factor range (ΔΚ), z. The probability density functions (F(da/dN)) were also plotted for the data.
Guerra, Ignacio, Goswami, T.
doaj   +3 more sources

A fatigue crack quantification model for metallic structure based on strain monitoring data

open access: yesXibei Gongye Daxue Xuebao, 2023
Obtaining the real-time fatigue crack length of a metallic structure is the prerequisite of the fatigue life monitoring and residual life estimation for an aircraft.
LI Kunpeng   +5 more
doaj   +1 more source

Two- and Three-Dimensional Numerical Investigation of the Influence of Holes on the Fatigue Crack Growth Path

open access: yesApplied Sciences, 2021
Problems in fracture mechanics are difficult when the appropriate analysis is unspecified, which is very common in most real-life situations. Finite element modeling is thus demonstrated to be an essential technique to overcome these problems.
Yahya Ali Fageehi
doaj   +1 more source

Assessing Fatigue Life Cycles of Material X10CrMoVNb9-1 through a Combination of Experimental and Finite Element Analysis

open access: yesMetals, 2023
This paper uses a two-scale material modeling approach to investigate fatigue crack initiation and propagation of the material X10CrMoVNb9-1 (P91) under cyclic loading at room temperature.
Mohammad Ridzwan Bin Abd Rahim   +8 more
doaj   +1 more source

Fatigue Crack Growth Analysis with Extended Finite Element for 3D Linear Elastic Material

open access: yesMetals, 2021
This paper presents computational modeling of a crack growth path under mixed-mode loadings in linear elastic materials and investigates the influence of a hole on both fatigue crack propagation and fatigue life when subjected to constant amplitude ...
Yahya Ali Fageehi
doaj   +1 more source

Combined simulation of fatigue crack nucleation and propagation based on a damage indicator [PDF]

open access: yesFracture and Structural Integrity, 2016
Fatigue considerations often distinguish between fatigue crack nucleation and fatigue crack propagation. The current work presents a modeling approach utilizing one Fatigue Damage Indicator to treat both in a unified way.
M. Springer   +2 more
doaj   +2 more sources

Prediction of Fatigue Crack Growth Rate and Stress Intensity Factors Using the Finite Element Method

open access: yesAdvances in Materials Science and Engineering, 2022
This study investigates crack growth and stress intensity factors via finite element methods in linear elastic fracture mechanics. The procedure involves estimating stress intensity factors (SIFs), crack trajectory, and fatigue life, using two different ...
Yahya Ali Fageehi
doaj   +1 more source

Hydrogen-Assisted Fatigue Propagation in Corner Cracks at Holes Located in Plates under Tensile Loading

open access: yesMetals, 2021
In this study, hydrogen-assisted fatigue propagation (a kind of corrosion fatigue phenomenon) in corner cracks at holes located in plates under tensile loading was studied, the results compared with those obtained for propagation by fatigue in air.
Jesús Toribio   +2 more
doaj   +1 more source

Numerical evaluation of crack stopping mechanisms in composite bonded joints due to corrugation and bolts [PDF]

open access: yesMATEC Web of Conferences, 2019
In this paper, the crack stopping mechanisms in corrugated composite bonded joints and hybrid bonded/bolted joints were evaluated numerically using the cohesive zone modeling approach.
Tserpes Konstantinos
doaj   +1 more source

A Comparison of Two Methods Modeling High-Temperature Fatigue Crack Initiation in Ferrite–Pearlite Steel

open access: yesCrystals, 2022
High-temperature fatigue tests are carried out to investigate the fatigue crack initiation behavior of ferrite–pearlite steel. Two approaches to modeling fatigue crack initiation under high temperatures in ferrite–pearlite steel are developed and ...
Zheng Fang, Lu Wang, Zheng Wang, Ying He
doaj   +1 more source

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