ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 3

Evaluation of Assembly Stresses of Automotive Leaf Springs by Acoustic Emission

Baram, JC
Chief engineer, Ben Gurion University of the Negev, Beer-Sheva,

Eckhaus, S
Chief metallurgist, Israel Aircraft Industry, Beer-Sheva Plant,

Rosen, M
Ben Gurion University of the Negev, Beer-Sheva,

Abstract

The acoustic emission Kaiser effect is used to evaluate the quantitative state of stress of leaf springs used in the automotive industry. Changes in curvature radii or in yield stress caused by thermal or mechanical treatment of the leaves are accurately assessed by a bend test procedure. The computation of the assembly stresses of the springs can be made knowing the actual yield stress of each leaf, thus enabling optimal design. The technique may be applicable to the reuse of discarded leaf springs subjected to mechanical deformation.

Keywords:
leaf springs, stresses, nondestructive tests, acoustic emission, automotive industry

Paper ID: JTE11521J
DOI: 10.1520/JTE11521J
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