Results 21 to 30 of about 4,588 (232)

Crack paths and the linear elastic analysis of cracked bodies [PDF]

open access: yesFracture and Structural Integrity, 2015
The linear elastic analysis of cracked bodies is a Twentieth Century development, with the first papers appearing in 1907, but it was not until the introduction of the stress intensity factor concept in 1957 that widespread application to practical ...
L. P. Pook
doaj   +2 more sources

Uniform fatigue damage tolerance assessment for additively manufactured and cast Al-Si alloys: An elastic-plastic fracture mechanical approach

open access: yesAdditive Manufacturing Letters, 2022
Lightweight Al-Si alloys are used in the automotive and railway industry due to their excellent strength-to-weight ratio and near-net-shape manufacturing. In additive manufacturing and casting, the near-net-shape manufacturing results in a non-homogenous
Jochen Tenkamp   +2 more
doaj   +1 more source

Crack propagation modeling of strengthening reinforced concrete deep beams with CFRP plates

open access: yesMaterials Research Express, 2021
Fracture analysis of reinforced concrete deep beam strengthened with carbon fiber-reinforced polymer (CFRP) plates was carried out. The present research aimed to discover whether crack propagation in a strengthened deep beam follows linear elastic ...
Shahriar Shahbazpanahi   +4 more
doaj   +1 more source

A Numerical Study into the Effect of Machining on the Interaction between Surface Roughness and Surface Breaking Defects on the Durability of WAAM Ti-6Al-4V Parts

open access: yesMetals, 2022
The airworthiness certification of military aircraft requires a durability analysis be performed using linear elastic fracture mechanics (LEFM). Furthermore, such analyses need to use a valid small crack growth equation.
Daren Peng   +5 more
doaj   +1 more source

Analysis and Comparison of Some LEFM Parameters

open access: yesProcedia Structural Integrity, 2019
Abstract This paper presents and analyses a possible extension of the well-known mean Strain Energy Density approach, proposed and developed by Paolo Lazzarin for the strength characterization and for the structural analysis of sharp notches. The new parameter, that here will be defined and discussed only for the case of a crack subjected to mode I ...
Atzori B.   +3 more
openaire   +4 more sources

Extension of the Equivalent Material Concept to Compressive Loading: Combination with LEFM Criteria for Fracture Prediction of Keyhole Notched Polymeric Samples

open access: yes, 2021
This work analyzes, both theoretically and experimentally, the fracture process of square specimens weakened by keyhole notches and subjected to compressive stresses.
A. R. Torabi   +4 more
semanticscholar   +1 more source

Models of buoyancy-driven dykes using continuum plasticity or fracture mechanics: a comparison [PDF]

open access: yesGeoscientific Model Development
Magmatic dykes play an important role in the thermomechanics of tectonic rifting of the lithosphere. Our understanding of this role is limited by the lack of models that consistently capture the interaction between magmatism, including dyking, and ...
Y. Li   +4 more
doaj   +1 more source

Push-over analysis of concrete gravity dams due to flood inflow [PDF]

open access: yesNumerical Methods in Civil Engineering, 2021
This study numerically predicts the failure scenario of a cracked concrete gravity dam through a push-over nonlinear analysis. The mixed-mode Linear Elastic Fracture Mechanics (LEFM) was employed using the extended finite element method (XFEM).
Mohammad Reza Gavzan Daroonkola   +1 more
doaj   +1 more source

On the evaluation of the stress intensity factor in calving models using linear elastic fracture mechanics

open access: yesJournal of Glaciology, 2018
We investigate the appropriateness of calving or crevasse models from the literature using linear elastic fracture mechanics (LEFM). To this end, we compare LEFM model-predicted stress intensity factors (SIFs) against numerically computed SIFs using the ...
STEPHEN JIMÉNEZ, RAVINDRA DUDDU
doaj   +1 more source

Crack Growth in Ni-Cr-Mo-V Steel Using ΔCTOD Elastic–Plastic Model

open access: yesJournal of Marine Science and Engineering, 2022
Many studies have shown that the linear elastic fracture mechanics (LEFM) method based on the stress intensity factor range (ΔK) has limitations that cannot be ignored. Due to neglecting the influence of plastic deformation near the crack tip, LEFM shows
Jingxia Yue   +3 more
doaj   +1 more source

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