Reducing stress concentration factor by strengthening circular hole with functionally graded incompressible material layer

Nie, Guojun; Batra, R.C.

doi:10.1016/j.tws.2019.106223

“…Permanent joints in the form of intersecting shells made by welding are used in equipment as fittings of various designs. It is known that any design change, for example, an abrupt transition of the thickness of the walls of the apparatus, the hole and its shape in the body of the apparatus, fittings are stress concentrators [23][24][25]. These stress concentrators, depending on the type and conditions of loading, can lead to negative consequences both for the equipment and for the personnel servicing processing installations.…”

Section: Introductionmentioning

confidence: 99%

RETRACTED: Possible consequences of nonstationary loads on the durability of welded joints for low-alloy steel fittings

Москалев

¹

,

Поникаров

²

2024

BIO Web Conf.

0

1

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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“…The stress concentration factor was reduced in an infinite panel having a circular hole by adding anisotropic FGIM (Functionally graded incompressible material) lining. It was analytically investigated and a comparison was made with numerical method [17,18]. N. P. Patel et al have worked on stress concentration around a polygonal cutout of complex geometry within the orthotropic infinite plate.…”

Section: Infinite Plate With a Holementioning

confidence: 99%

Effect of various discontinuities present in a plate on stress concentration: a review

Patel

¹

,

Patel

²

2022

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

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“…Guan and Li [10] solved the problem of SCF around arbitrary hole surrounded by FGM layer and subjected to far field anti-plane shear load. Nie et al [20,21] tailored the FGM material to achieve the specific SCF near the hole. Zheng et al [35] analysed the SCF reduction near FGM reinforced sphere.…”

Section: Introductionmentioning

confidence: 99%

“…Nie et al. [20,21] tailored the FGM material to achieve the specific SCF near the hole. Zheng et al.…”

Section: Introductionmentioning

confidence: 99%

Level Set function-based Functionally Graded Material for the reduction of maximum stresses around a pair of inclined unequal circular holes

Goyat

¹

,

Verma

²

,

Garg

³

2021

SFC

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Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.

show abstract

Reducing stress concentration factor by strengthening circular hole with functionally graded incompressible material layer

Cited by 12 publications

References 46 publications

RETRACTED: Possible consequences of nonstationary loads on the durability of welded joints for low-alloy steel fittings

RETRACTED: Possible consequences of nonstationary loads on the durability of welded joints for low-alloy steel fittings

Effect of various discontinuities present in a plate on stress concentration: a review

Level Set function-based Functionally Graded Material for the reduction of maximum stresses around a pair of inclined unequal circular holes