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An experimental met...
An experimental method for estimating the tearing energy inrubber-like materials using the true stored energy
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- Elmukashfi, Elsiddig (författare)
- KTH,Hållfasthetslära (Avd.)
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KTH Hållfasthetslära (Avd) (creator_code:org_t)
- KTH Royal Institute of Technology, 2015
- Engelska.
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Serie: TRITA-HFL. Rapport/ Institutionen för hållfasthetslära, KTH, 1654-1472 ; 580
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- A method for determining the critical tearing energy in rubber-like materials is proposed. In this method, the energy required for crack propagation in a rubber-like material is determined by the change of the recovered elastic energy. Hence, the dissipated energy due to different inelastic processes is deducted from the total strain energy applied to a system. Therefore, the classical method proposed by Rivlin and Thomas (Rivlin and Thomas in Journal of Polymer Science 10(3):291-318,1953) using the pure shear tear test is modified using the actual stored elastic energy. The elastically stored energy in a pure shear is determined experimentally using cyclic loading. The experimental results show that the classical method overestimates the critical tearing energy by approximately $15\%$. Moreover, the effect of the unloading rate on the determination of the elastically stored energy is investigated and found to be minimal suggesting that the crack propagation velocity has a minor effect in the change of the elastically stored energy.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Publikations- och innehållstyp
- vet (ämneskategori)
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