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Sunghwan Jung

Dankook University

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Publication

Featured researches published by Sunghwan Jung.

Ultrasonics | 2018

Peening the tip of a notch using ultrasonic cavitation

Sunghwan Jung; Murugesan Prabhu; Hyungyil Lee

HIGHLIGHTSUltrasonic cavitation was adopted to peen the tips of deep notches.It was demonstrated that the ultrasonic intensity is concentrated at the notch.It was visually confirmed that ultrasonic cavitation was intensified at the notch tip.Ultrasonic cavitation at the notch tip generated compressive residual stresses. ABSTRACT A peening technique using ultrasonic cavitation was proposed to peen the tip of deep notches. The working theory of the present peening technique for the notch tip was described and numerically demonstrated. An experiment using a deep notch shape and an ultrasonic loading with a frequency of 20 kHz achieved noticeable compressive residual stresses at the notch tip.

Surface & Coatings Technology | 2012

A 3D FE model with plastic shot for evaluation of equi-biaxial peening residual stress due to multi-impacts

Taehyung Kim; Hyungyil Lee; Sunghwan Jung; Jin Haeng Lee

Materials & Design | 2013

Effects of Rayleigh damping, friction and rate-dependency on 3D residual stress simulation of angled shot peening

Taehyung Kim; Hyungyil Lee; Hong Chul Hyun; Sunghwan Jung

Surface & Coatings Technology | 2012

A 3D FE model for evaluation of peening residual stress under angled multi-shot impacts

Taehyung Kim; Hyungyil Lee; Minsoo Kim; Sunghwan Jung

Materials Science and Engineering A-structural Materials Properties Microstructure and Processing | 2011

A simple but effective FE model with plastic shot for evaluation of peening residual stress and its experimental validation

Taehyung Kim; Hyungyil Lee; Hong Chul Hyun; Sunghwan Jung

Journal of Mechanical Science and Technology | 2011

Crack-tip field characterization of crack-tip opening angle-based crack growth — plane strain single-edge cracked specimen subject to pure extension

Sunghwan Jung; Hyungyil Lee

Journal of Mechanical Science and Technology | 2012

Finite element modeling of the human cervical spinal column: Role of the uncovertebral joint †

In Seok Han; Young Eun Kim; Sunghwan Jung

Journal of Mechanical Science and Technology | 2011

Crack-tip opening angle-based numerical implementation for fully plastic crack growth analyses

Sunghwan Jung; Hyungyil Lee

Computational Materials Science | 2016

Contact size-independent method for estimation of creep properties with spherical indentation

Minsoo Kim; Karuppasamy Pandian Marimuthu; Sunghwan Jung; Hyungyil Lee

대한기계학회 춘추학술대회 | 2017

Maximizing the ultrasonic energy efficiency for cavitation by constraining the acoustic streaming

Murugesan Prabhu; Sunghwan Jung; Hyungyil Lee

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Collaboration

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Hyungyil Lee

Sogang University

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Taehyung Kim

Korea Electric Power Corporation

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Murugesan Prabhu

Sogang University

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Hong Chul Hyun

Sogang University

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Minsoo Kim

Sogang University

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In Seok Han

Dankook University

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Jin Haeng Lee

Sogang University

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Karuppasamy Pandian Marimuthu

Sogang University

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Young Eun Kim

Dankook University

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