Experimental analysis in continuum and solid mechanics

Lecturer(s): Francesco FROIIO, Lyes NECHAK
PW ⋅ 16 hStudy ⋅ 4 h

Objectives

(1) become aware of physical phenomena in mechanics, (2) know different techniques for measuring useful variables in mechanics (extensometry, accelerometry, photoelasticimetry, stroboscopy, etc.), (3) develop the practical implementation of theoretical concepts and thus promote their assimilation, (4) knowing how to validate experimental results: critical analysis of the quality and relevance of the measurements carried out, comparing experimental results and results from theoretical or numerical approaches, (5) know how to write a report of practical work and design office, (6) deepen and apply theoretical knowledge in a practical situation.

Keywords

Deformations, stresses, eigenmodes, resonance phenomenon, static and dynamic measurements, experimental and numerical methods, finite element method

Programme

Discovery lab TP1: Study of the resonance phenomena of a flexible structure; Practical work 2: Photoelasticimetry – Visualization of the stress field in 2D solids, measurement of stresses by photoelasticimetry.

Practical work Measurements and analysis Practical work 3: Determination of the eigenmodes of continuous elastic structures; Practical work 4: Extensometry (measurements by strain gauges) – Analytical examination, application to the determination of the stress field.

BE finite elements: calculation of structures using software based on the finite element method: static case interpreted in terms of stresses and deformations, dynamic case interpreted in terms of eigenmodes.

Learning Outcomes

  • Master the basic notions of deformations and stresses for the deformable solid
  • Understand the link between assumptions, modeling and associated physical phenomena
  • Know how to identify the elements of a measurement chain
  • Know how to write a report of practical work and design office