RESISTANCE DES MATERIAUX

PROPRIETE

SOMMAIRE

1. DEFINITION – EXEMPLES…………………………………………………………………………………………………………………………………………….4

2. DEFORMATIONS – ANGLE DE TORSION ^ ……………………………………………………………………………………………………………..5

2.1 CONSTATATIONS EXPERIMENTALES………………………………………………………………………………………………………………………………5

2.2 ANGLE UNITAIRE DE TORSION ^……………………………………………………………………………………………………………………………………5

3. EFFORTS INTERIEURS – MOMENT DE TORSION…………………………………………………………………………………………………6

4. CONTRAINTES TANGENTIELLES DE TORSION……………………………………………………………………………………………………6

4.1 EXEMPLES DE VALEURS DE G……………………………………………………………………………………………………………………………………….7

5. RELATION ENTRE M T ET ^………………………………………………………………………………………………………………………………………….8

6. RELATION ENTRE ^ ET MT ………………………………………………………………………………………………………………………………………….9

7. CALCUL DES CONSTRUCTIONS………………………………………………………………………………………………………………………………..9

8. CONCENTRATION DE CONTRAINTES……………………………………………………………………………………………………………………10