COBEM99

S24 Mecânica dos Sólidos

Title:

ANÁLISE DE TENSÕES EM TRILHO FERROVIÁRIO

Summary :

ABSTRACT. THE PURPOSE OF THIS WORK IS CONCERNING ABOUT STRESSES ANALYSIS IN RAILWAY, TYPE TR68 (NORMALLY USED FOR HIGH CARGO RAILWAYS, FOR EXAMPLE, IRON ORE TRANSPORTING). THE EXPERIMENTAL TECHNIQUES USED TO OBTAIN RESULTS ARE PHOTOELASTICITY, HOLE-DRILLING METHOD OF BETWEEN WHEELS AND RAILS AND SIDE MOVEMENT OF THE VEHICLE AGAINST RAILWAYS, EVERY VEHICLE IS PASSING WITH DIFFERENT LONGITUDINAL POSITION ON RAILWAY. THEREFORE, THE CONTACT FORCES ARE NOT DISTRIBUTED EQUALLY ON THE HEAD OF THE RAIL, THUS THE DIFFERENT LEVELS OF DEFORMATIONS ARE PRODUCED ON THE HEAD, AND CONSEQUENTLY DIFFERENT LEVELS OF RESIDUAL STRESSES WICH CAN CAUSE COLLAPSE OF USED COMPONENTS. OBTAINED RESULTS ARE QUALITATIVELY DESCRIBING STRESSES OF THE CONTACT REGION BETWEEN RAILHEAD AND THE WHEEL. KEY WORDS: STRESSES, RAILS, PHOTOELASTICITY, HOLE-DRILLING METHOD, FINITE ELEMENTS

Author :

Alvarez, Eliane D.
Guimarães, Lenira K.
Roldo, Liane 0
Strohaecker, Telmo Roberto

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