Results 41 to 50 of about 13,071,517 (161)

Full-Field Strain Characterizations and Fracture Process of Rock Blasting Using a Small-Scale Double-Hole Bench Model

open access: yesAdvances in Civil Engineering, 2020
A small-scale double-hole bench model is designed with granite to study the fracture mechanism of rock blasting. By combining high-speed camera and digital image correlation, the full-field strain characterization and fracture process of the specimen ...
Jun Yang   +4 more
doaj   +1 more source

Size effects on residual stress and fatigue crack growth in friction stir welded 2195-T8 aluminium - Part I: Experiments [PDF]

open access: yes, 2011
Residual stress fields were measured in three different sizes of Compact-Tension (C(T)) and eccentrically loaded single edge notch (ESE(T)) specimens containing transverse or longitudinal welds. The effect of size on residual stress profiles was studied.
Irving, Phil E.   +7 more
core   +1 more source

Evaluation of Fatigue Crack Front Shape for a Specimen with Finite Thickness

open access: yesMATEC Web of Conferences, 2015
Two-dimensional elastic or elasto-plastic models dominate the current fatigue crack growth assessment and life prediction procedures for plate components with through-the-thickness cracks.
He Zhuang   +2 more
doaj   +1 more source

Calculation and Analysis of Crack Stress Intensity Factor and J Integral of Helical Gear

open access: yesJixie chuandong, 2020
The distribution of stress intensity factor and J integral of helical gear with three-dimensional crack under different initial crack parameters is studied. The finite element software is used to analyze the helical gear with initial crack.
Guangyao Sun   +2 more
doaj  

Fatigue assessment and crack propagation of floorbeam cutout in orthotropic bridge decks

open access: yesMaterials & Design, 2023
Based on the fatigue cracking of floorbeam cutout in a bridge, the field testing under random traffic flows was firstly conducted to investigate the fatigue crack initiation, and then a multi-scale numerical model, based on extended finite element method
Ze Xiang, Zhiwen Zhu, Xinbin Lei
doaj   +1 more source

Three-dimensional thermal weight function method for the interface crack problems in bimaterial structures under a transient thermal loading [PDF]

open access: yes, 2016
Different from previous two-dimensional thermal weight function (TWF) method, a three-dimensional (3D) TWF method is proposed for solving elliptical interface crack problems in bimaterial structures under a transient thermal loading.
Wu, Huaping   +7 more
core   +1 more source

Fatigue crack propagation of planar three-dimensional cracks

open access: yes, 2022
In this paper the Fourier series is used to evaluate mode I Stress Intensity Factors (SIF) in three-dimensional planar flaws based on a distortion transformation of a reference disc. Under the hypothesis of an isolated crack, the SIF at each point of the
Livieri P.   +3 more
core   +1 more source

Experimental Study of Three-Dimensional Propagation of Crack in Transparent Rock Mass

open access: yesAdvances in Civil Engineering, 2021
Three-dimensional crack propagation in a rock mass was investigated using a specifically designed material with good transparency and elastoplasticity. The material has properties that are similar to those of the nature sandstone.
Zhende Zhu, Yuan Tian, Xinyu Liu
doaj   +1 more source

Three-dimensional finite element model generation based on CT image for concrete crack

open access: yes, 2016
A generation method of three-dimensional finite element model based on CT image for concrete crack is proposed. Aiming at concrete crack, firstly, the paper adopts watershed algorithm to achieve the segmentation of CT image for concrete crack and uses ...
Xu Ying   +6 more
core   +1 more source

Three-dimensional crack propagation simulation based on a nonlocal algorithm of P91 steel under fatigue and creep–fatigue loading

open access: yesMechanical Engineering Journal
This study conducted a three-dimensional crack propagation simulation based on a nonlocal algorithm of P91 steel under fatigue and creep–fatigue loading. A damage-coupled inelastic constitutive model incorporating fatigue and creep damage parameters into
Akihiro MOTOKI, Masayuki ARAI
doaj   +1 more source

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