Spicer Drive Axles Failure Analysis Service Manual Manual de usuario descargar pdf (Pagina 10)

Glossary and Nomenclature

Stress Overview

Most failures involve some form of mechanical stress. Even when the initial or basic cause of the failure results from a problem

such as excessive heat or improper lubrication, the part becomes weakened and more subject to stress failure.

This page illustrates four basic forms of mechanical stress: torsion, tensile, shear, and compression. In the Failure Analysis sec-

tion, parts photographs show the resulting failures and the patterns characteristic of the different stresses.

Torsion Stress: Tensile Stress:

Shear Stress: Compression Stress:

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Spicer Drive Axles Failure Analysis Service Manual Manual de usuario Pagina 10