Séance de cours

Mécanique des poutres composites

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Dans cours

CIVIL-238: Structural mechanics (for GC)

The course discusses the basic principles of structural mechanics, analyzing the performance of materials and structures against loading and focuses on the stress strain relationships and the effect of axial, bending, shear and torsional loadings on engin ...

Description

Cette séance de cours couvre la méthode de la section transformée pour analyser les contraintes de flexion dans les poutres composites, où la section transversale est transformée en une section équivalente d'un seul matériau. Les sujets abordés comprennent l'axe neutre, la relation moment-courbure et les contraintes normales pour différents matériaux.

Enseignant·e·s (2)

Anastasios Vassilopoulos

Enseignement et PhD Doctorant·es actuel·les Filippo Mannino, Joseph Vincent Arnaud Bernaert, Seyed Shayan Khalooei Tafti A dirigé les thèses EPFL de Alireza Farajzadeh Moshtaghin, Abdolvahid Movahedirad, Dharun Vadugappatty Srinivasan A co-dirigé les thèses EPFL de Ye Zhang, Behzad Dehghan Manshadi, Omar Moussa, Roohollah Sarfaraz Khabbaz, Moslem Shahverdi, Wei Sun, Haifeng Fan, Maria Savvilotidou, Myrsini Angelidi, Aida Cameselle Molares, Niloufar Vahedi, Jialiang Fan, Congzhe Wang Cours Advanced compo

Dimitrios Lignos

Prof. Lignos joined the École Polytechnique Féderale de Lausanne (EPFL) in 2016 from McGill University in Canada where he was a tenured Associate Professor and a William Dawson Scholar for Infrastructure Resilience. He holds a diploma (National Technical University of Athens, NTUA, 2003), M.S. (Stanford University, 2004) and Ph.D. (Stanford University, 2008). In addition, he was a post-doctoral scientist at Stanford University (2009) and in Kyoto University (2010). Prof. Lignos teaches graduate and undergraduate courses in seismic design, nonlinear behaviour of steel and composite structures as well as supplemental damping systems, Structural Stability, Nonlinear Analysis and Performance-based Earthquake Engineering. His awards for teaching, research and service in Civil Engineering include the 2011 Outstanding Teaching Award (Faculty of Engineering, McGill University), as well as the Outstanding reviewer (2012, 2013) award from ASCE, the 2013 State-of-the-Art in Civil Engineering Award by ASCE and the 2014 Christophe Pierre Award for Research Excellence - Early Career. Just recently, he received the 2019 Walter L. Huber Civil Engineering Research Prize from ASCE for significant contributions in developing state of the art methods to simulate extreme limit states in steel structures.Prof. Lignos is a member of ASCE and the Earthquake Engineering Research Institute. He acts as an Associate Editor for Metal Structures and Seismic Effects of the ASCE Journal of Structural Engineering. He joined the Editorial Board of Earthquake Spectra and Earthquake Engineering and Structural Dynamics International journals. He serves as an acting member of the CEN/TC 250/SC 8/WG 2 and has been selected as a member of the Project Team (PT2) for the Eurocode 8-Part 1 Current Revisions for Steel and Composite Structures. He is also a member of the Canadian Standards Association (CSA) S16 technical committee for Steel Structures. Prof. Lignos is involved as a NEHRP consultant in numerous research-to-practice projects related to the behaviour and nonlinear modelling and analysis of structures applicable to the engineering practice through the Applied Technology Council (ATC). Detailed Curriculum Vitae (last update September 2018)

Source officielle

Proximité ontologique

Génie civil

Ingénierie des structures: Ingénierie des structures

Concepts associés (32)

Tenseur des contraintes

Le tenseur des contraintes est un tenseur d'ordre 2 utilisé en mécanique des milieux continus pour caractériser l'état de contrainte, c'est-à-dire les efforts intérieurs mis en jeu entre les portions déformées d'un milieu. Le terme a été introduit par Cauchy vers 1822. Comme les efforts intérieurs sont définis pour chaque surface coupant le milieu (on parle d'ailleurs également d'efforts surfaciques), le tenseur est défini localement, en chaque point du solide. L'état de contrainte du solide est donc représenté par un champ tensoriel.

Stress–strain analysis

Stress–strain analysis (or stress analysis) is an engineering discipline that uses many methods to determine the stresses and strains in materials and structures subjected to forces. In continuum mechanics, stress is a physical quantity that expresses the internal forces that neighboring particles of a continuous material exert on each other, while strain is the measure of the deformation of the material. In simple terms we can define stress as the force of resistance per unit area, offered by a body against deformation.

I-beam

I-beam is a generic lay term for a variety of structural members with an or -shaped cross-section. Technical terms for similar items include H-beam (for universal column, UC), w-beam (for "wide flange"), universal beam (UB), rolled steel joist (RSJ), or double-T (especially in Polish, Bulgarian, Spanish, Italian and German). I-beams are typically made of structural steel and serve a wide variety of construction uses. The horizontal elements of the are called flanges, and the vertical element is known as the "web".

T-beam

A T-beam (or tee beam), used in construction, is a load-bearing structure of reinforced concrete, wood or metal, with a -shaped cross section. The top of the -shaped cross section serves as a flange or compression member in resisting compressive stresses. The web (vertical section) of the beam below the compression flange serves to resist shear stress. When used for highway bridges the beam incorporates reinforcing bars in the bottom of the beam to resist the tensile stresses which occur during bending.

Structural mechanics

Structural mechanics or mechanics of structures is the computation of deformations, deflections, and internal forces or stresses (stress equivalents) within structures, either for design or for performance evaluation of existing structures. It is one subset of structural analysis. Structural mechanics analysis needs input data such as structural loads, the structure's geometric representation and support conditions, and the materials' properties. Output quantities may include support reactions, stresses and displacements.

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Séances de cours associées (64)

Equilibre interne des solides

Couvre la théorie de l'élasticité, de l'équilibre interne, de la contrainte et de la contrainte dans les corps solides déformables.

Mécanique des poutres composites

Explore les contraintes dans les poutres composites, y compris les contraintes normales, les contraintes longitudinales et la relation moment-courbure.

Moments et poutres: fondamentaux de la mécanique structurale

Introduit les concepts fondamentaux de la mécanique structurelle, en se concentrant sur les moments et les poutres dans la conception technique.

Les poutres courbées : moment d’inertie et d’analyse du stress

Explore le moment d'inertie dans les poutres de flexion et l'analyse des contraintes pour les sections de poutre.

Déformation des poutres droites

Explore la déformation des poutres droites, y compris la flexion déviée, la flexion composée, la contrainte normale et l'axe neutre.

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Concepts associés (32)

Tenseur des contraintes

Stress–strain analysis