Simple Materials and Structures - Part 2

This module is a basic module on the physical properties of materials and techniques for sizing mechanically simple components or systems.

Material properties are discussed through tensile testing, binary diagrams and microstructure.

The dimensioning of a component includes the choice of the most suitable material, the definition of the geometry to ensure static and fatigue resistance. The dimensional analysis approach also makes it possible to determine the characteristics of a more complex system from experiments conducted on a scale model.

• Apply the dimensional analysis approach to study a system from measurements taken on a mock-up,
• Know the main classes of materials and their specificities,
• Determine the mechanical properties of a material from a tensile test, the basic test of the materials mechanic,
• Determine the most suitable material for a given application (use of Ashby diagrams)
• Design a simple part to remain in its elastic range (Tresca criterion) and to ensure its fatigue life for non-symmetrical loads (Goodmann criterion), while taking into account the phenomenon of stress concentration.

Kinematics and statics of the undeformable solid

Basic mathematics

Notion of deformation of solids

Knowledge control:

0.2*TP+0.8*max(0.5*CC1+0.5*Ex; Ex)

• Units, dimensional analysis, similarity and uncertainties,
• Material classes and specific characteristics,
• Tensile test,
• Choice of materials and introduction to eco-design,
• Equivalent stress and fatigue design, taking into account stress concentrations.