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.
Ultimate strength design method for welded hemispherical structures subjected to external hydrostatic pressure
외부 정수압을 받는 용접 반구 구조물의 최종강도 설계방법
24.02.2021
Patent
Elektronische Ressource
Koreanisch
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