The Experts below are selected from a list of 249 Experts worldwide ranked by ideXlab platform
Harry H. West - One of the best experts on this subject based on the ideXlab platform.
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Fundamentals of Structural Analysis
1993Co-Authors: Harry H. WestAbstract:Part One: Orientation aeo Introduction aeo Basic Concepts of Structural Analysis Part Two: Analysis of Statically Determinate Structures aeo Reactions aeo Member Forces in Planar Trusses and Space Frameworks aeo Member Forces in Beams and Frames aeo Influence Lines and Maximum Load Effects Part Three: Elastic Deflections of Structures aeo Elastic Deflections of Trusses and Frameworks aeo Elastic Deflections of Beam and Frame Structures Part Four: Analysis of Statically Indeterminate Structures aeo More Basic Concepts of Structural Analysis aeo Method of Consistent Deformations (and Other Compatibility Methods) aeo Slope Deflection Method (and Other Equilibrium Methods) aeo Moment Distribution Method Part Five: Matrix Methods of Analysis aeo Member Force--Deformation Relations aeo Stiffness Method aeo Flexibility Method Appendix: Answers to Selected Problems
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Fundamentals of Structural Analysis
European Journal of Engineering Education, 1993Co-Authors: Harry H. WestAbstract:There are two new developments in the last twenty years in the civil engineering curricula that have a direct bearing on the design of the content of a course in Structural Analysis: the reduction of credit hours to three required hours in Structural Analysis in most civil engineering curricula and the increasing gap between what is taught in textbooks and classrooms and what is being practiced in engineering firms. The former is brought about by the recognition of civil engineering educators that Structural Analysis as a required course for all civil engineering majors need not cover in great detail all the analytical methods. The latter is certainly the result of the ubiquitous applications of personal digital computer. This Structural Analysis text is designed to bridge the gap between engineering practice and education. Acknowledging the fact that virtually all computer Structural Analysis programs are based on the matrix displacement method of Analysis, the text begins with the matrix displacement method. A matrix operations tutorial is included as a review and a self-learning tool. To minimize the conceptual difficulty a student may have in the displacement method, it is introduced with plane truss Analysis, where the concept of nodal displacements presents itself. Introducing the matrix displacement method early also makes it easier for students to work on term project assignments that involve the utilization of computer programs. The force method of Analysis for plane trusses is then introduced to provide the coverage of force equilibrium, deflection, statical indeterminacy, etc., that are important in the understanding of the behavior of a structure and the development of a feel for it. The force method of Analysis is then extended to beam and rigid frame Analysis, almost in parallel to the topics covered in truss Analysis. The beam and rigid frame Analysis is presented in an integrated way so that all the important concepts are covered concisely without undue duplicity. The displacement method then re-appears when the moment distribution and slope- deflection methods are presented as a prelude to the matrix displacement method for beam and rigid frame Analysis. The matrix displacement method is presented as a generalization of the slope-deflection method. The above description outlines the introduction of the two fundamental methods of Structural Analysis, the displacement method and the force method, and their applications to the two groups of structures, trusses and beams-and-rigid frames. Other related topics such as influence lines, non-prismatic members, composite structures, secondary stress Analysis, limits of linear and static Structural Analysis are presented at the end.
Michael Beer - One of the best experts on this subject based on the ideXlab platform.
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Approximation Concepts for Fuzzy Structural Analysis
Vulnerability Uncertainty and Risk, 2014Co-Authors: M.a. Valdebenito, Michael Beer, Hector A. Jensen, C. A. PérezAbstract:This contribution presents an approach for performing fuzzy Structural Analysis of linear structures subject to static loading where uncertainties are present in both material properties and loadings. The responses of interest are displacements of the structure. The proposed approach is based on a non-linear approximation of these responses. This non-linear approximation is constructed by taking into account the linearity of the displacements with respect to loading and by introducing intervening variables. In this manner, high quality approximations of the Structural responses are obtained allowing to determine membership functions performing a single Structural Analysis.
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Fuzzy and Fuzzy Stochastic Structural Analysis
Fuzzy Randomness, 2004Co-Authors: Bernd Möller, Michael BeerAbstract:In deterministic Structural Analysis crisp input vectors x ⊆ X representing load, geometry, and material parameters are known.
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Fuzzy Structural Analysis using α-level optimization
Computational Mechanics, 2000Co-Authors: Bernd Möller, Wolfgang Graf, Michael BeerAbstract:In this paper new concepts and developments are presented for Structural Analysis involving uncertain parameters. Based on a classification of the uncertainties in Structural Analysis the uncertainty “fuzziness” is identified and its quantification is demonstrated. On the basis of fuzzy set theory a general method for fuzzy Structural Analysis is developed and formulated in terms of the α-level optimization with the application of a modified evolution strategy. Every known Analysis algorithm for the realistic simulation of load-bearing behavior may be applied in the fuzzy Structural Analysis in the sense of a deterministic fundamental solution. By way of example, geometrically and physically nonlinear algorithms are adopted in the presented study as a deterministic fundamental solution for the Analysis of steel and reinforced concrete structures. The paper also describes coupling between α-level optimization and the deterministic fundamental solution.
K. Nakajima - One of the best experts on this subject based on the ideXlab platform.
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Structural Analysis and arrangement of systems
1991. IEEE International Sympoisum on Circuits and Systems, 1991Co-Authors: M. Osano, K. NakajimaAbstract:In the framework of global design of systems, the Structural Analysis and arrangement are considered. The authors introduce three measures of system structure called sparsity, connectivity, and clustering and develop a method that provides a basis for Structural Analysis, and arrangement of systems. Using those measures, the authors develop a technique of analyzing and (re-)arranging the structure of a given system. The key component of the technique is called the node reduction method. This method is applied to a graph that represents the structure of a system. It combines two nodes to construct a new supernode and updates the original graph. The authors implemented the node reduction method in FORTRAN on a personal computer. Based on experimental results, it is shown that the global Structural Analysis and arrangement of systems is very useful.
Jerzy W. Wekezer - One of the best experts on this subject based on the ideXlab platform.
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Computer-Aided Structural Analysis
Electronic Computation, 1991Co-Authors: Czeslaw J. Branicki, Jerzy W. WekezerAbstract:Finite Element Methods and other numerical techniques are often taught nowadays in the undergraduate Structural Analysis courses. Commercial, Structural computer programs are becoming more popular in industry and engineering schools are faced with a necessity of providing their students with a solid background in those areas. PRISM, symbolic matrix interpretive system presented in this paper is a matrix calculator created to facilitate this process. It was written in Turbo Basic programming language for IBM PC's and all compatible models. The program requires a student to understand all steps of matrix oriented methods taught within Structural Analysis, Engineering Analysis, Finite Element Method, Structural Dynamics and other related courses. It releases the student from cumbersome matrix calculations or from writing his computer programs. Instead, the system offers an easy way to create his/her solutions by using some from over fifty built-in matrix operations. PRISM has been tested for the last several years at four universities and was proven to be flexible computer tool which makes learning an exciting experience. Several solutions to Structural Analysis problems will be presented on the Conference.
Eugenio Oñate - One of the best experts on this subject based on the ideXlab platform.
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Structural Analysis with the Finite Element Method Linear Statics - Structural Analysis with the Finite Element Method Linear Statics
Lecture Notes on Numerical Methods in Engineering and Sciences, 2020Co-Authors: Eugenio OñateAbstract:Structural Analysis WITH THE FINITE ELEMENT METHOD Linear Statics Volume 1 : The Basis and Solids Eugenio Oñate The two volumes of this book cover most of the theoretical and computational aspects of the linear static Analysis of structures with the Finite Element Method (FEM). The content of the book is based on the lecture notes of a basic course on Structural Analysis with the FEM taught by the author at the Technical University of Catalonia (UPC) in Barcelona, Spain for the last 30 years. Volume1 presents the basis of the FEM for Structural Analysis and a detailed description of the finite element formulation for axially loaded bars, plane elasticity problems, axisymmetric solids and general three dimensional solids. Each chapter describes the background theory for each Structural model considered, details of the finite element formulation and guidelines for the application to Structural engineering problems. The book includes a chapter on miscellaneous topics such as treatment of inclined supports, elastic foundations, stress smoothing, error estimation and adaptive mesh refinement techniques, among others. The text concludes with a chapter on the mesh generation and visualization of FEM results. The book will be useful for students approaching the finite element Analysis of structures for the first time, as well as for practising engineers interested in the details of the formulation and performance of the different finite elements for practical Structural Analysis. Structural Analysis WITH THE FINITE ELEMENT METHOD Linear Statics Volume 2: Beams, Plates and Shells Eugenio Oñate The two volumes of this book cover most of the theoretical and computational aspects of the linear static Analysis of structures with the Finite Element Method (FEM).The content of the book is based on the lecture notes of a basic course on Structural Analysis with the FEM taught by the author at the Technical University of Catalonia (UPC) in Barcelona, Spain for the last 30 years. Volume 2 presents a detailed description of the finite element formulation for Analysis of slender and thick beams, thin and thick plates, folded plate structures, axisymmetric shells, general curved shells, prismatic structures and three dimensional beams. Each chapter describes the background theory for each Structural model considered, details of the finite element formulation and guidelines for the application to Structural engineering problems Emphasis is put on the treatment of structures with layered composite materials. The book will be useful for students approaching the finite element Analysis of beam, plate and shell structures for the first time, as well as for practising engineers interested in the details of the formulation and performance of the different finite elements for practical Structural Analysis
