Download or read book Esercitazioni di Scienza delle Costruzioni 1 Strutture isostatiche e geometria delle masse written by Erasmo Viola and published by Società Editrice Esculapio. This book was released on 2023-07-05 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molte sono le novità contenute nella terza edizione di questo primo volume di Esercitazioni di Scienza delle Costruzioni. Il capitolo 8 riguardante la geometria delle masse è stato notevolmente ampliato mediante l'aggiunta di dimostrazioni e complementi. Il volume inoltre risulta arricchito di due appendici. L'appendice A riguarda lo studio grafico dei sistemi piani di forze. L'appendice B riporta le formulazioni forte, debole e variazionale del problema della fune inestensibile. Non mancano in essa i richiami indispensabili di Algebra Lineare e di Analisi Funzionale. In questa parte del volume viene fatto rilevare che le notazioni introdotte possono applicarsi a qualsiasi problema strutturale, mentre il procedimento esposto costituisce la base per la formulazione unificata del problema dell'equilibrio elastico per solidi monodimensionali e piani e per il corpo elastico tridimensionale.

Download or read book Esercitazioni di Scienza delle Costruzioni 4 Temi d esame written by Erasmo Viola and published by Società Editrice Esculapio. This book was released on 2023-07-11 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: In questo volume si riportano vari temi di esame, alcuni completamente risolti ed altri con cenni di soluzione, assegnati in occasione delle prove scritte dell'esame di Scienza delle Costruzioni, svoltesi presso la Facoltà di Ingegneria di Bologna negli ultimi anni accademici. Con i temi completamente risolti, ciascuno costituito da tre esercizi, si vuole fornire allo studente un quadro completo e sintetico degli argomenti trattati nel corso di esercitazioni. Pertanto, prima di affrontare la risoluzione dei suddetti temi, è necessaria l'acquisizione dei concetti esposti nei capitoli che formano il corso medesimo. I temi parzialmente risolti, poi, puntualizzano alcuni aspetti della soluzione di problemi di Scienza delle Costruzioni, ma soprattutto, devono costituire per l'allievo lo stimolo a verificare il livello di preparazione raggiunto. La presente edizione riporta anche 19 temi di esame assegnati, negli ultimi anni accademici, alle prove scritte dell'esame di Scienza delle Costruzioni. Ciascuno dei nuovi temi proposti è composto di sei esercizi, che possono riguardare tutti gli argomenti trattati al corso. Per molti esercizi ho indicato anche un cenno di soluzione. Di frequente, lo studente viene guidato a ricercare la soluzione attraverso la consultazione dei testi dell'autore, contraddistinti dai numeri qui di seguito specificati: Esercitazioni di Scienza delle Costruzioni Strutture isostatiche e geometria delle masse. Strutture iperstatiche e verifiche di resistenza. Analisi probabilistica delle strutture. Scienza delle Costruzioni Teoria dell'elasticità Teoria della trave

Download or read book Anisotropic Doubly Curved Shells written by Francesco Tornabene and published by Società Editrice Esculapio. This book was released on 2019-11-01 with total page 1199 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims to present in depth several Higher-order Shear Deformation Theories (HSDTs) by means of a unified approach for the mechanical analysis of doubly-curved shell structures made of anisotropic and composite materials. In particular, the strong and weak formulations of the corresponding governing equations are discussed and illustrated. The approach presented in this volume is completely general and represents a valid tool to investigate the structural behavior of many arbitrarily shaped structures. An isogeometric mapping procedure is also illustrated to this aim. Special attention is given also to advanced and innovative constituents, such as Carbon Nanotubes (CNTs), Variable Angle Tow (VAT) composites and Functionally Graded Materials (FGMs). In addition, several numerical applications are developed to support the theoretical models. Accurate, efficient and reliable numerical techniques able to approximate both derivatives and integrals are presented, which are respectively the Differential Quadrature (DQ) and Integral Quadrature (IQ) methods. Finally, two numerical techniques, named Strong Formulation Finite Element Method (SFEM) and Weak Formulation Finite Element Method (WFEM), are developed to deal with multi-element domains characterized by arbitrary shapes and discontinuities.

Download or read book Generalized Differential and Integral Quadrature written by Francesco Tornabene and published by Società Editrice Esculapio. This book was released on 2023-10-17 with total page 689 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main aim of this book is to analyze the mathematical fundamentals and the main features of the Generalized Differential Quadrature (GDQ) and Generalized Integral Quadrature (GIQ) techniques. Furthermore, another interesting aim of the present book is to shown that from the two numerical techniques mentioned above it is possible to derive two different approaches such as the Strong and Weak Finite Element Methods (SFEM and WFEM), that will be used to solve various structural problems and arbitrarily shaped structures. A general approach to the Differential Quadrature is proposed. The weighting coefficients for different basis functions and grid distributions are determined. Furthermore, the expressions of the principal approximating polynomials and grid distributions, available in the literature, are shown. Besides the classic orthogonal polynomials, a new class of basis functions, which depend on the radial distance between the discretization points, is presented. They are known as Radial Basis Functions (or RBFs). The general expressions for the derivative evaluation can be utilized in the local form to reduce the computational cost. From this concept the Local Generalized Differential Quadrature (LGDQ) method is derived. The Generalized Integral Quadrature (GIQ) technique can be used employing several basis functions, without any restriction on the point distributions for the given definition domain. To better underline these concepts some classical numerical integration schemes are reported, such as the trapezoidal rule or the Simpson method. An alternative approach based on Taylor series is also illustrated to approximate integrals. This technique is named as Generalized Taylor-based Integral Quadrature (GTIQ) method. The major structural theories for the analysis of the mechanical behavior of various structures are presented in depth in the book. In particular, the strong and weak formulations of the corresponding governing equations are discussed and illustrated. Generally speaking, two formulations of the same system of governing equations can be developed, which are respectively the strong and weak (or variational) formulations. Once the governing equations that rule a generic structural problem are obtained, together with the corresponding boundary conditions, a differential system is written. In particular, the Strong Formulation (SF) of the governing equations is obtained. The differentiability requirement, instead, is reduced through a weighted integral statement if the corresponding Weak Formulation (WF) of the governing equations is developed. Thus, an equivalent integral formulation is derived, starting directly from the previous one. In particular, the formulation in hand is obtained by introducing a Lagrangian approximation of the degrees of freedom of the problem. The need of studying arbitrarily shaped domains or characterized by mechanical and geometrical discontinuities leads to the development of new numerical approaches that divide the structure in finite elements. Then, the strong form or the weak form of the fundamental equations are solved inside each element. The fundamental aspects of this technique, which the author defined respectively Strong Formulation Finite Element Method (SFEM) and Weak Formulation Finite Element Method (WFEM), are presented in the book.

Download or read book Esercitazioni di scienza delle costruzioni written by Erasmo Viola and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hygro Thermo Magneto Electro Elastic Theory of Anisotropic Doubly Curved Shells written by Francesco Tornabene and published by Società Editrice Esculapio. This book was released on 2023-10-13 with total page 1073 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims to present in depth several Higher-order Shear Deformation Theories (HSDTs) by means of a unified approach for studying the Hygro-Thermo-Magneto-Electro- Elastic Theory of Anisotropic Doubly-Curved Shells. In particular, a general coupled multifield theory regarding anisotropic shell structures is provided. The three-dimensional multifield problem is reduced in a two-dimensional one following the principles of the Equivalent Single Layer (ESL) approach and the Equivalent Layer-Wise (ELW) approach, setting a proper configuration model. According to the adopted configuration assumptions, several Higher-order Shear Deformation Theories (HSDTs) are obtained. Furthermore, the strong and weak formulations of the corresponding governing equations are discussed and illustrated. The approach presented in this volume is completely general and represents a valid tool to investigate the physical behavior of many arbitrarily shaped structures. An isogeometric mapping procedure is also illustrated to this aim. Special attention is given also to advanced and innovative constituents, such as Carbon Nanotubes (CNTs), Variable Angle Tow (VAT) composites and Functionally Graded Materials (FGMs). In addition, several numerical applications are used to support the theoretical models. Accurate, efficient and reliable numerical techniques able to approximate both derivatives and integrals are considered, which are respectively the Differential Quadrature (DQ) and Integral Quadrature (IQ) methods. The Theory of Composite Thin Shells is derived in a simple and intuitive manner from the theory of thick and moderately thick shells (First-order Shear Deformation Theory or Reissner- Mindlin Theory). In particular, the Kirchhoff-Love Theory and the Membrane Theory for composite shells are shown. Furthermore, the Theory of Composite Arches and Beams is also exposed. In particular, the equations of the Timoshenko Theory and the Euler-Bernoulli Theory are directly deducted from the equations of singly-curved shells of translation and of plates.

Download or read book Mechanics of laminated Composite doubly curvel shell structures written by Francesco Tornabene and published by Società Editrice Esculapio. This book was released on 2014-03-01 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manuscript comes from the experience gained over ten years of study and research on shell structures and on the Generalized Differential Quadrature method. The title, Mechanics of Laminated Composite Doubly-Curved Shell Structures, illustrates the theme followed in the present volume. The present study aims to analyze the static and dynamic behavior of moderately thick shells made of composite materials through the application of the Differential Quadrature (DQ) technique. A particular attention is paid, other than fibrous and laminated composites, also to “Functionally Graded Materials” (FGMs). They are non-homogeneous materials, characterized by a continuous variation of the mechanical properties through a particular direction. The GDQ numerical solution is compared, not only with literature results, but also with the ones supplied and obtained through the use of different structural codes based on the Finite Element Method (FEM). Furthermore, an advanced version of GDQ method is also presented. This methodology is termed Strong Formulation Finite Element Method (SFEM) because it employs the strong form of the differential system of equations at the master element level and the mapping technique, proper of FEM. The connectivity between two elements is enforced through compatibility conditions.

Download or read book Laminated Composite Doubly Curved Shell Structures written by Francesco Tornabene and published by Società Editrice Esculapio. This book was released on 2016-05-17 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt: The title, “Laminated Composite Doubly-Curved Shell Structures. Differential and Integral Quadrature. Strong Form Finite Elements” illustrates the theme treated and the prospective followed during the composition of the present work. The aim of this manuscript is to analyze the static and dynamic behavior of thick and moderately thick composite shells through the application of the Differential Quadrature (DQ) method. The book is divided into two volumes wherein the principal higher order structural theories are illustrated in detail and the mechanical behavior of doubly-curved structures are presented by several static and dynamic numerical applications. In particular, the first volume is mainly theoretical, whereas the second one is mainly related to the numerical DQ technique and its applications in the structural field. The numerical results reported in the present volume are compared to the one available in the literature, but also to the ones obtained through several codes based on the Finite Element Method (FEM). Furthermore, an advanced version of the DQ method, termed Strong Formulation Finite Element Method (SFEM), is presented. The SFEM solves the differential equations inside each element in the strong form and implements the mapping technique typical of the FEM.

Download or read book Mechanics of Laminated Composite Doubly Curved Shell Structures written by Francesco Tornabene and published by Società Editrice Esculapio. This book was released on 2021-12-01 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manuscript comes from the experience gained over ten years of study and research on shell structures and on the Generalized Differential Quadrature method. The title, Mechanics of Laminated Composite Doubly-Curved Shell Structures, illustrates the theme followed in the present volume. The present study aims to analyze the static and dynamic behavior of moderately thick shells made of composite materials through the application of the Differential Quadrature (DQ) technique. A particular attention is paid, other than fibrous and laminated composites, also to “Functionally Graded Materials” (FGMs). They are non-homogeneous materials, characterized by a continuous variation of the mechanical properties through a particular direction. The GDQ numerical solution is compared, not only with literature results, but also with the ones supplied and obtained through the use of different structural codes based on the Finite Element Method (FEM). Furthermore, an advanced version of GDQ method is also presented. This methodology is termed Strong Formulation Finite Element Method (SFEM) because it employs the strong form of the differential system of equations at the master element level and the mapping technique, proper of FEM. The connectivity between two elements is enforced through compatibility conditions.

Download or read book Theory of Laminated Composite Doubly Curved Shell Structures written by Francesco Tornabene and published by Società Editrice Esculapio. This book was released on 2017-01-09 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manuscript comes from the experience gained over thirteen years of study and research on shell structures. The title, Theory of Laminated Composite Doubly-Curved Shell Structures, illustrates the theme followed in the present volume. The present study aims to analyze the static and dynamic behavior of moderately thick shells made of composite materials. A particular attention is paid, other than fibrous and laminated composites, also to “Functionally graded materials” (FGMs). They are non-homogeneous materials, characterized by a continuous varia on of the mechanical properties through a particular direction. In particular, the present manuscript was written as an attempt to show, in an easy way, the theoretical aspects of doubly-curved composite shell structures. Furthermore, it focuses only on the theoretical aspects related to laminated composite doubly-curved shell structures and represents a shortened version of the book entitled: Mechanics of Laminated Composite Doubly-Curved Shell Structures by the same authors, wherein also the numerical part has been presented. The present volume is aimed at Master degree and PhD students in structural and applied mechanics, as well as experts in these fields. The present volume is divided into six chapters, in which static and dynamic analyses of several structural elements are provided in detail. Furthermore, the results of the adopted numerical technique are presented for several problems such as different loading and boundary conditions.

Download or read book Esercizi di scienza delle costruzioni written by T. Cavallina and published by . This book was released on 1967 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Esercitazioni di Scienza delle Costruzioni 2 Strutture Iperstatiche e Verifiche di Resistenza written by Erasmo Viola and published by Società Editrice Esculapio. This book was released on 2023-07-13 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Una struttura iperstatica è una struttura che ha più vincoli di quelli necessari per il suo equilibrio statico. Le strutture iperstatiche sono più rigide e stabili delle strutture isostatiche, ma sono anche più costose da costruire. Le verifiche di resistenza sono un insieme di procedure utilizzate per garantire che una struttura sia in grado di sopportare i carichi a cui sarà sottoposta durante il suo ciclo di vita. Le verifiche di resistenza devono essere eseguite per tutte le strutture, ma sono particolarmente importanti per le strutture iperstatiche. Esistono diversi metodi per verificare la resistenza di una struttura iperstatica. Il metodo più comune è il metodo degli stati limite, che prevede l'analisi della struttura sotto l'azione di diversi scenari di carico. Il metodo degli stati limite determina i valori di carico che la struttura può sopportare senza superare i limiti di resistenza dei materiali che la compongono. Le verifiche di resistenza sono una parte importante della progettazione di strutture iperstatiche. Le verifiche di resistenza garantiscono che le strutture siano in grado di sopportare i carichi a cui saranno sottoposte durante il loro ciclo di vita e che siano quindi sicure e durevoli. Ecco alcuni esempi di strutture iperstatiche: Le travi sospese I ponti sospesi I grattacieli Le cupole Le volte Queste strutture sono tutte iperstatiche perché hanno più vincoli di quelli necessari per il loro equilibrio statico. I vincoli in eccesso rendono queste strutture più rigide e stabili, ma anche più costose da costruire.

Download or read book Scienza delle Costruzioni 1 Teoria dell elasticit written by Erasmo Viola and published by Società Editrice Esculapio. This book was released on 2023-08-02 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: ll presente volume trae origine dal corso ufficiale di Scienza delle Costruzioni, che da vari anni tengo nella Facoltà di Ingegneria dell'Università di Bologna. La materia, esposta nell'ordine seguito nelle lezioni, è strutturata in sei capitoli e due Appendici. La Scienza delle Costruzioni è una branca dell'ingegneria civile che si occupa di studiare il comportamento delle strutture edifici, ponti, dighe, etc. sia dal punto di vista statico che dinamico. Questo campo di studio è fondamentale per garantire la sicurezza delle costruzioni e degli edifici e per evitare incidenti e crolli. La Scienza delle Costruzioni si basa sulla meccanica dei solidi, una disciplina che studia le forze e le deformazioni dei corpi solidi. Gli ingegneri civili utilizzano le leggi della meccanica dei solidi per progettare strutture resistenti, stabili e sicure. In particolare, la Scienza delle Costruzioni si occupa di analizzare le proprietà dei materiali da costruzione, come il cemento, l'acciaio e il legno, e di progettare strutture in grado di resistere alle forze esterne, come il vento, la neve, le vibrazioni e i terremoti. Gli ingegneri civili devono anche tenere conto degli effetti del tempo e dell'usura sulle strutture, in modo da garantire la loro durata nel tempo. La teoria dell'elasticità è una branca della meccanica dei solidi che si occupa di studiare il comportamento dei corpi solidi quando vengono sottoposti a forze esterne. In particolare, la teoria dell'elasticità studia il modo in cui i corpi solidi si deformano e si riprendono dopo che le forze esterne vengono rimosse. Gli ingegneri civili utilizzano la teoria dell'elasticità per progettare strutture resistenti e sicure, prevedere la deformazione e la resistenza dei materiali da costruzione e calcolare lo sforzo necessario per deformare un corpo solido fino a una certa quantità. La teoria dell'elasticità è stata sviluppata per la prima volta nel XVII secolo da Robert Hooke e Isaac Newton e ha trovato molte applicazioni pratiche nel campo dell'ingegneria civile, dell'aerospaziale, della meccanica e della tecnologia dei materiali.

Download or read book Esercizi di scienza delle costruzioni written by Giovanni Martini and published by . This book was released on 1988 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Engineering Design by Geometric Programming written by Clarence Zener and published by John Wiley & Sons. This book was released on 1971 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Planning and Design of Engineering Systems written by G. C. Dandy and published by Taylor & Francis. This book was released on 1989 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive introduction to the scope and nature of engineering offers students a commonsense approach to the solution of engineering problems. Case studies and real-world examples are used to illustrate the role of the engineer, the type of work involved and the methodology employed in engineering practice.

Download or read book Handbook of Design Research Methods in Education written by Anthony E. Kelly and published by Routledge. This book was released on 2014-07-16 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook presents the latest thinking and current examples of design research in education. Design-based research involves introducing innovations into real-world practices (as opposed to constrained laboratory contexts) and examining the impact of those designs on the learning process. Designed prototype applications (e.g., instructional methods, software or materials) and the research findings are then cycled back into the next iteration of the design innovation in order to build evidence of the particular theories being researched, and to positively impact practice and the diffusion of the innovation. The Handbook of Design Research Methods in Education-- the defining book for the field -- fills a need in how to conduct design research by those doing so right now. The chapters represent a broad array of interpretations and examples of how today’s design researchers conceptualize this emergent methodology across areas as diverse as educational leadership, diffusion of innovations, complexity theory, and curriculum research. This volume is designed as a guide for doctoral students, early career researchers and cross-over researchers from fields outside of education interested in supporting innovation in educational settings through conducting design research.