Publication detail

Degradation of polymeric bellows effecting life cycle of constant-velocity joint

Binar, T., Švarc, J., Bálková, R., Mikulíková, R., Dostál, P.

Original Title

Degradation of polymeric bellows effecting life cycle of constant-velocity joint

English Title

Degradation of polymeric bellows effecting life cycle of constant-velocity joint

Type

bibliography

Language

en

Original Abstract

One broken and three new polymeric constant-velocity boots (bellows) being a spare part of a constant-velocity joint in two military vehicles were analyzed to identify basic composition and to determine if composition or structure of broken bellows differ. Infrared spectroscopy, differential scanning calorimetry, and thermogravimetry were used for analyses. Bellows for both vehicles are produced from thermoplastic elastomer. Broken bellows is chemically degraded and material just from the fracture is deformed plastically. The life cycle of bellows depends especially on applied stress and temperature (that about −20°C seems to be critical due to crystallization of soft segments).

English abstract

One broken and three new polymeric constant-velocity boots (bellows) being a spare part of a constant-velocity joint in two military vehicles were analyzed to identify basic composition and to determine if composition or structure of broken bellows differ. Infrared spectroscopy, differential scanning calorimetry, and thermogravimetry were used for analyses. Bellows for both vehicles are produced from thermoplastic elastomer. Broken bellows is chemically degraded and material just from the fracture is deformed plastically. The life cycle of bellows depends especially on applied stress and temperature (that about −20°C seems to be critical due to crystallization of soft segments).

Keywords

Aging, attenuated total reflection, differential scanning calorimetry, failure, Fourier transform infrared spectroscopy, polymer constant-velocity bellows, thermoplastic elastomer

Released

02.01.2018

Publisher

Taylor and Francis Inc.

Pages from

1

Pages to

8

Pages count

8