The present invention relates to an ultimate strength design method for a welded hemispherical structure subjected to external hydrostatic pressure, which comprises: a step of setting P_u l t = (ρ/(ρ^2 + λ^4)^1/2) x P_Y formula as a fundamental formula; a step of substituting λ = (P_Y/P_cr)^1/2, ρ = exp(-(0.072/λ^2)-1.05), and P_Y = 2σ_Y x (t/R) for a corrected slenderness ratio (λ), a local elastic buckling strength reduction factor (ρ), and yeild stress (P_Y) of the fundamental formula, respectively; and a step of putting elastic buckling pressure of P_σ = 2E/(3(1-ν))^1/2 x (t/R)^2 into the fundamental formula to obtain ultimate strength (P_ult) of a welded hemispherial structure.

    본 발명은, 본 발명은, 외부 정수압을 받는 용접 반구 구조물의 최종강도를 설계하는 방법에 있어서, JPEG112020130597315-pat00069.jpg1444을 기본식으로 설정하는 단계, 기본식의 수정세장비(JPEG112020130597315-pat00070.jpg73), 국부탄성좌굴 강도저하계수(JPEG112020130597315-pat00071.jpg84), 항복압력(JPEG112020130597315-pat00072.jpg77)를 각각 JPEG112020130597315-pat00073.jpg1423, JPEG112020130597315-pat00074.jpg1460, JPEG112020130597315-pat00075.jpg1335로 치환하는 단계, 기본식에 탄성좌굴압력 JPEG112020130597315-pat00076.jpg1455을 대입하여 용접 반구 구조물의 최종강도(JPEG112020130597315-pat00077.jpg810)를 구하는 단계;를 포함하는 외부 정수압을 받는 용접 반구 구조물의 최종강도 설계방법을 제공한다.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Ultimate strength design method for welded hemispherical structures subjected to external hydrostatic pressure


    Weitere Titelangaben:

    외부 정수압을 받는 용접 반구 구조물의 최종강도 설계방법


    Beteiligte:
    CHO SANG RAI (Autor:in) / PARK SANG HYUN (Autor:in)

    Erscheinungsdatum :

    24.02.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Koreanisch


    Klassifikation :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung