(Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures
(Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures
MINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATIONDO VAN MIENISOGEOMETRIC FINITE ELEMENT METHOD FOR LIMIT AND (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures SHAKEDOWN ANALYSIS OF STRUCTURESPhD DISSERTATIONMAJOR: ENGINEERING MECHANICSHo Chi Minh City. October 13, 2020DeclarationI, Do Van Hien. declare that this thesis entitled. ’Isogeometric finite element method for limit and .shakedown analysis of structures' is a presentation of my original research (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures work. I confirm that:•W herever contributions of others are involved, every effort is made to indicate this clearly. With due reference to the literat(Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures
ure and acknowledgement of collaborative research and discussions.•The work was done under rhe guidance of Prof. Nguyen Xuan Hung at the Ho Chi Minh CMINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATIONDO VAN MIENISOGEOMETRIC FINITE ELEMENT METHOD FOR LIMIT AND (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures Program 'Engineering Mechanics' al Ho Chi Minh City University of Technology and Education in Ho Chi Minh City. This thesis would not have boon possible without the help of many, and I would like to acknowledge rheir kind efforts and assistance.First of all. 1 would like to express my deep gratitude (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures to my supervisor Prof. Nguyen Xnan Hung, for his guidance, support, and encouragement during the past, five years. 1 appreciate that he left a lot of(Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures
freedom for me to pursue my own ideas, set the right direction when it was necessary and contributed valuable advice.I am also very grateful to AssocMINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATIONDO VAN MIENISOGEOMETRIC FINITE ELEMENT METHOD FOR LIMIT AND (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures a onc-year research visit at the Bauhaus-ưnivcrsitãt Weimar, and 1 also want to thank Prof. Tom Lahmer and Prof. Xiaoying Zhuang for the fruitful discussions and their support.I also would like to thank the research group members at GACES (at HCMUTE), CIRTECH (at HUTECH) and ISM (at Bauhaus-ưniversi (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures tãt Weimar. Germany) for their helpful supports.I would like to thank from the bottom of my heart to Assoc. Prof. Nguyen Hoai Son. Assoc.Prof Nguyen T(Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures
rung Kien, Assoc.Prof Chau Dinh Thanh and other colleagues at HCMUTE for their kind supports and advice.I am immensely indebted to my father Do Tang, MINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATIONDO VAN MIENISOGEOMETRIC FINITE ELEMENT METHOD FOR LIMIT AND (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures course of my education including this Doctoral Program.Last, bur not least. I am extremely grateful to my wife Mrs. Nguyen Thi Nhu I.an who has been the source of love, companionship and encouragement, to my sons, Do Quang Khai and Do Minh Nliat. who has been the source of joy and love.itAbstractThe (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures structural safety such as nuclear power plants, chemical industry, pressure vessel industry and so on can commonly be evaluated with the help of limi(Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures
t anti shakedown analysis. Nowadays, the limit and shakedown analysis plays a well-known role in not only designing engineering structures but also asMINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATIONDO VAN MIENISOGEOMETRIC FINITE ELEMENT METHOD FOR LIMIT AND (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures own analysis in many practical engineering areas, the development of numerical tools which are sufficiently efficient and robust is a necessity for current research in the field of limit and shakedown analysis. The numerical tools involve two steps: a finite element discretisation strategy and const (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures rained optimization.In this research, the isogeometric finite element method is used to discretise the displacement domain of strutnres in the first s(Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures
tep. The primal-dual algorithm based upon the von Mises yield criterion and a Newton-like iteration is used in the second stop to solve the optimizatiMINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATIONDO VAN MIENISOGEOMETRIC FINITE ELEMENT METHOD FOR LIMIT AND (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures ound is the minimum of the plastic dissipation function, which is based on von Mises yield criterion, subjected to compatibility, incompressibility and normalized constraints. This constraint nonlinear optimization problem is solved by the combined penalty function and Lagrange multiplier methods.Th (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures e isogcomctric analysis (IGA) uses NURBS basis functions for both the representation of the geometry and the approximation of solutions. The main aim(Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures
of the IGA was to integrate Finite Element Analysis (FEA) into NURBS based Computer Aid Design (CAD) design tools, rhe Bézier and Lagrange extraction MINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATIONDO VAN MIENISOGEOMETRIC FINITE ELEMENT METHOD FOR LIMIT AND (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures URBS function in the existing FEM codes due to a significant differences between the NURBS basis function and the Lagrange function, rhe Bézier extraction is founded on the NURBS basis functions in terms of cn Bernstein polynomials. Lagrange extraction is similar to Bézier extraction but it sets up (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures a direct connection between NURBS and Lagrange polynomial basis functions instead of using Bernstein polynomials as a new shape function in the Bézier(Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures
extraction.mAbstractÌXĨNumerical results of slructme problems are compared with analytical or other available solutions to prove the reliability and MINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATIONDO VAN MIENISOGEOMETRIC FINITE ELEMENT METHOD FOR LIMIT AND (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures walled cylinders, nozzle, head, nozzle head, skirt support and so on. Two types of defects, axial and circumferential cracks, are commonly found in pressure vessel and piping. '1 he application of shakedown analysis ill pressure vessel engineering is illustrated in Lilis study.Table of ContentsConte (Luận án tiến sĩ) Isogeometric finite element method for limit and shakedown analysis of structures ntsPageAcknowledgmentsiiiAbstractVMINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATIONDO VAN MIENISOGEOMETRIC FINITE ELEMENT METHOD FOR LIMIT AND MINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATIONDO VAN MIENISOGEOMETRIC FINITE ELEMENT METHOD FOR LIMIT ANDGọi ngay
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