Results 1 to 10 of about 62,204 (160)

Notch sensitivity study in u-notched polymers built by Additive Manufacturing (AM)

open access: yesFracture and Structural Integrity, 2023
Onyx is a new material composed of Polyamide 6 reinforced with short carbon fiber, used in the novel additive manufacturing composites technique. This paper aims to presents the axial fatigue performance of this material with and without U-notches. The
Jorge Guillermo D�az Rodr�guez   +2 more
doaj   +3 more sources

Notch sensitivity of PEEK in monotonic tension. [PDF]

open access: yesBiomaterials, 2009
Poly(ether-ether-ketone) (PEEK) has been used as a load bearing orthopaedic implant material with clinical success. All of the orthopaedic applications contain stress concentrations (notches) in their design; however, little work has been done to examine the stress-strain behavior of PEEK in the presence of a notch.
Sobieraj MC, Kurtz SM, Rimnac CM.
europepmc   +4 more sources

Fatigue notch sensitivity as a function of the notch to grain size relationship [PDF]

open access: yesMATEC Web of Conferences, 2014
This work presents experimental results showing the mode I fatigue behaviour of holed components as a function of the hole to grain size relationship. A wide range of notch size to grain size ratios are used, including cases where the notch size is on ...
Lorenzino Pablo, Navarro Alfredo
doaj   +2 more sources

Is notch sensitivity a stress analysis problem? [PDF]

open access: yesFracture and Structural Integrity, 2013
Semi–empirical notch sensitivity factors q have been widely used to properly account for notch effects in fatigue design for a long time. However, the intrinsically empirical nature of this old concept can be avoided by modeling it using sound mechanical
Jaime Tupiassú Pinho de Castro   +1 more
doaj   +4 more sources

On short cracks that depart from elastoplastic notch tips [PDF]

open access: yesFracture and Structural Integrity, 2017
The behavior of short cracks that depart from elastoplastic notch tips is modeled to estimate the stresses required to initiate and to propagate cracks in notched structural components, and to evaluate the size of tolerable crack-like defects under ...
Verônica Miquelin Machado   +2 more
doaj   +5 more sources

Effect of Heat Treatment on Notch Sensitivity Factor for Aluminum Alloys [PDF]

open access: yesEngineering and Technology Journal, 2010
This study is concerned with the effect of heat treatment (precipitationhardening) on notch sensitivity factor for aluminum alloy (7075). Tests wereconducted on four configurations of specimens, three of them which had externalcircumferential notches ...
Ahmed. N. Al-Khazraji   +1 more
doaj   +1 more source

Study on Notch Sensitivity and Failure of 3D Needled C/SiC Fracture Toughness

open access: yesHangkong gongcheng jinzhan, 2022
SiC ceramic matrix composites are one of the key materials for the development of hypersonic aircraft and engines with high thrust/weight ratio,which have high requirements for impact fracture toughness,defect and crack sensitivity.
LIU Bin   +4 more
doaj   +1 more source

kf Evaluation in GFRP Composites by Thermography

open access: yesApplied Sciences, 2021
Since the presence of a notch in a mechanical component causes a reduction in the fatigue strength, it is important to know the kf value for a given notch geometry and material.
Marta De Giorgi   +2 more
doaj   +1 more source

The effects of notch size and material microstructure on the notch sensitivity factor for notched components [PDF]

open access: yesEngineering Fracture Mechanics, 2015
Abstract Nickel base superalloys are used in hot sections of gas turbine engines due to its high strength and good creep, fatigue, and corrosion resistance at high temperature. In this paper, a new probabilistic approach based on weakest-link theory that accounts for the effects of the microstructure, notch size and notch acuity is described and ...
Gbadebo Owolabi   +4 more
openaire   +1 more source

Notch sensitivity of metamaterial with snapping microstructure

open access: yesNihon Kikai Gakkai ronbunshu, 2020
The purpose of this project is to examine the notch sensitivity to the strength of a mechanical metamaterial comprising a periodic arrangement of snapping units.
Ken HIKASA   +4 more
doaj   +1 more source

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