Introduction to structural mechanics

ME-104

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ME-104 Introduction to structural mechanics (2025)

Lecture27_ME104_Spring2025

26.05.2025, 16:28

The goal of engineering mechanics
The tree of mechanics
Structure of ME-104
Summary of the content
A brief history of Mechanics
Main Learning objectives of ME104
Solid and structural mechanics curriculum @ SGM/EPFL
What to expect for the ME-104 Final Exam

ME-104: Principle of Virtual Work - Tutorial

26.05.2025, 16:00

Lecture26_ME104_Spring2025

22.05.2025, 15:44

2024 final exam review

Lecture25_ME104_Spring2025

19.05.2025, 15:48

Buckling (introduction);
Instability in a mechanical system;
Beam buckling;
Buckling conditions for different constraints.

Lecture24_ME104_Spring2025

15.05.2025, 16:00

Pure bending
The beam equation
Typical boundary conditions

Lecture23_ME104_Spring2025

12.05.2025, 16:29

Beam bending: Introduction, Kinematics.
Toward the moment-curvature relation for beams (continuation): kinematics, stress distribution, forces & moments
Pure bending
The beam equation

Lecture22_ME104_Spring2025

08.05.2025, 15:52

How do we express linearity between stress (tensor) and strain (tensor) beyond 1D?
Young's modulus and Poisson's ratio (and the shear modulus)
Equations of isotropic linear elasticity in 3D

Lecture21_ME104_Spring2025

05.05.2025, 16:06

Stress: Equilibrium; Generalization of stress to 3D
Strain

Lecture20_ME104_Spring2025

01.05.2025, 16:06

Hyperstatic structures and Principle of Virtual Work
Pre-stressed structures

Lecture19_ME104_Spring2025

28.04.2025, 16:04

Statically Determinate Systems
An illustrative example: A simple truss
Statically Indeterminate Systems
Linear Superposition: Alternative method for statically indeterminate systems

Lecture18_ME104_Spring2025

17.04.2025, 16:05

Axial loading and axial stiffness;
Definition of stress and strain (1D);
Generalized uniaxial loading;
Example: Self-weight on a conical structure.

Lecture17_ME104_Spring2025

14.04.2025, 15:53

Internal loads in a truss;
Stability of equilibrium states;
Criterion for stability
Principle of Superposition
Cases when the principle of superposition cannot be applied

Lecture16_ME104_Spring2025

10.04.2025, 16:36

Equilibrium States and Forces in Non-rigid Systems
Example: Equilibrium position of a mechanical system comprising a drawbridge, a cable, and a counterweight.
Reaction Forces and Internal Loads
Example: A hinged beam