Accelerated approaches for life-time prediction of composites under static loads

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Abstract

Composite materials in structural applications with several decades under static loads unfortunately tend to changings in the material performance over the material lifetime. In the current work, novel methods for the determination of long term strength properties of unidirectional glass fiber reinforced thermoset composites with different fiber orientations are investigated and discussed. Classic creep rupture tests with a constant static loading situation are quite simple tests with low requirements to the test equipment, however, need non-economic testing times. Accelerated approaches, especially the stress rate accelerated creep rupture test and the stepped isostress method offer potentials to reduce testing times in an acceptable prediction quality. Although the suitability of each approach could not be confirmed for all investigated laminate structures. Nevertheless, the developed stress rate accelerated creep rupture test can certainly be regarded as a trendsetting testing procedure in the development of time efficient test methods for the prediction of material life time under static loads.

Details

OriginalspracheEnglisch
TitelECCM 2018 - 18th European Conference on Composite Materials
ISBN (elektronisch)9781510896932
StatusVeröffentlicht - 1 Jan 2020
Veranstaltung18th European Conference on Composite Materials, ECCM 2018 - Athens, Griechenland
Dauer: 24 Jun 201828 Jun 2018

Publikationsreihe

NameECCM 2018 - 18th European Conference on Composite Materials

Konferenz

Konferenz18th European Conference on Composite Materials, ECCM 2018
LandGriechenland
OrtAthens
Zeitraum24/06/1828/06/18