• Title/Summary/Keyword: J-shape

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Analysis of Shape Change of a Surface Crack during Stable Fatigue Growth (안정피로성장 중인 표면균열 형상변화의 해석)

  • Chu, Seok-Jae
    • Transactions of the Korean Society of Mechanical Engineers A
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    • v.20 no.9
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    • pp.2843-2853
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    • 1996

  • The multi-point procedure is developed to predict the shape change of a semi-elliptical surface crack during stable fatigue crack growth. 3-D stress intensity factors along a crack front are calculated using the simplified 3-D J-intergral. Crack growth rate coefficient in the Paris law is assumed to be constant along the crack growth. Crack growth rate is set to be the distance between the two parallel tangent lines on the two semi-elliptic crack fronts before and after crack growth.

  • https://doi.org/10.22634/KSME-A.1996.20.9.2843 인용 PDF

Autonomous Factory: Future Shape Realized by Manufacturing + AI (제조+AI로 실현되는 미래상: 자율공장)

  • Son, J.Y.;Kim, H.;Lee, E.S.;Park, J.H.
    • Electronics and Telecommunications Trends
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    • v.36 no.1
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    • pp.64-70
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    • 2021

  • The future society will be changed through an artificial intelligence (AI) based intelligent revolution. To prepare for the future and strengthen industrial competitiveness, countries around the world are implementing various policies and strategies to utilize AI in the manufacturing industry, which is the basis of the national economy. Manufacturing AI technology should ensure accuracy and reliability in industry and should be explainable, unlike general-purpose AI that targets human intelligence. This paper presents the future shape of the "autonomous factory" through the convergence of manufacturing and AI. In addition, it examines technological issues and research status to realize the autonomous factory during the stages of recognition, planning, execution, and control of manufacturing work.

  • https://doi.org/10.22648/ETRI.2021.J.360107 인용 PDF