초소성 박판 성형 공정의 유한 요소 압력 제어 해석 Finite element simulation of a superplastic sheet metal forming process with a pressure cycle control algorithm

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dc.contributor.authorHuh, Hoon-
dc.contributor.authorHan, Soo Sik-
dc.contributor.authorYang, Dong-Yol-
dc.contributor.authorLee, Jong Soo-
dc.date.accessioned2011-03-24T07:24:45Z-
dc.date.available2011-03-24T07:24:45Z-
dc.date.issued1991-
dc.identifier.citation대한기계학회논문집, Vol.15, No.5, pp.1563-1571en
dc.identifier.urihttp://hdl.handle.net/10203/22996-
dc.description.abstractThe superplastic blow-forming process of a diaphragm has been analyzed by a finite element method with a pressure cycle control algorithm. The finite element formulation is derived from the equilibrium equations by the principle of virtual work in the form of an approximated, updated Lagrangian formulation for incremental analysis. The formulation is approximated to the finite dimensional space with the use of isoparametric continuum elements. The large inelastic pressure cycle control algorithm is added to the finite element formulation for optimization of the forming time, which is indispensible to shorten the relatively long forming time. The algorithm deals with the maximization of the strain rate sensitivity, the protection of thickness reduction by localized deformation, and the consistency of the desired strain rate. Numerical simulation includes the optimal pressure versus time curve, the pole height versus time, the deformed shape with the variation of time, and the deformed shape with the variation of time, and the distribution of the thickness.en
dc.language.isokoen
dc.publisher대한기계학회en
dc.subjectSuperplasticyen
dc.subjectPressure Cycle Controlen
dc.subjectF.E.Men
dc.subjectSheet Metal Formingen
dc.subjectFree Bulgingen
dc.subjectVisco-Plastic Modelen
dc.title초소성 박판 성형 공정의 유한 요소 압력 제어 해석en
dc.title.alternativeFinite element simulation of a superplastic sheet metal forming process with a pressure cycle control algorithmen
dc.typeArticleen
dc.subject.alternative초소성en
dc.subject.alternative압력 제어en
dc.subject.alternative유한 요소법en
dc.subject.alternative박판 성형en
dc.subject.alternative자유 벌징en
dc.subject.alternative점소성 모델en
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