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M ATERIALS SELECTION Practical workshops: Session 1 Henri-Michel Montrieux

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Presentation on theme: "M ATERIALS SELECTION Practical workshops: Session 1 Henri-Michel Montrieux"— Presentation transcript:

1 M ATERIALS SELECTION Practical workshops: Session 1 Henri-Michel Montrieux

2 C ONTENT Introduction Materials Selection for Bicycles Materials Selection for Springs Materials Selection for Car Radiator Materials Selection for Springs Starting with CES

3 I NTRODUCTION (Fracture) Toughness IS Unit? Physical aspect? Lower value of Kc?

4 I NTRODUCTION

5 Consequence What are materials with the best Kc/Re and Kc²/Re ratio? When do we use respectively Kc/E and Kc²/E ?

6 M ATERIALS SELECTION FOR BICYCLES Beams Wheel spokes

7 M ATERIALS SELECTION FOR BICYCLES ( BEAMS ) Generally: Bending, shearing, compression, tension and torsion elements. Here, simplified hypothesis : bending tubes only

8 M ATERIALS SELECTION FOR SPRINGS Store elastic energy

9 M ATERIALS SELECTION FOR RADIATORS Car radiator House radiator MaterialCopperAluminiu m Magnesiu m Low alloy steel Thermal conductivity (W/mK)

10 M ATERIALS SELECTION FOR RADIATORS Objectif : Conduire la chaleur efficacement à travers les ailettes (longueur L, section S) Loi constitutive :

11 M ATERIALS SELECTION FOR CAR RADIATORS Objective: Minimise mass MaterialCopperAluminiu m Magnesiu m Low alloy steel Thermal conductivity (W/mK) Density (kg/m³) M

12 M ATERIALS SELECTION FOR CAR RADIATORS ( HOUSE ) Incl. cost

13 S TARTING WITH CES Simple exercise (group of 2 students)


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