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Effects of matrix cracking on the estimation of operational limits of FRP laminates

Luis Felipe Sánchez-Heres (Institutionen för sjöfart och marin teknik, Marine Design) ; Jonas Ringsberg (Institutionen för sjöfart och marin teknik, Marine Design) ; Erland Johnson (Institutionen för sjöfart och marin teknik, Marine Design)
Proceedings of the Fifteenth European Conference on Composite Materials (ECCM15) in Venice, Italy, June 24-28, 2012 p. 8. (2012)
[Konferensbidrag, refereegranskat]

Probabilistic failure analyses of structures are performed in order to determine the loading operational limits with respect to different degrees of safety. To guarantee an accurate prediction by numerical simulation, it is necessary to account for all the major sources of uncertainty and natural variation. Most probabilistic analyses disregard the degradation of the laminate’s properties caused by matrix cracking. The objective of this investigation is to determine the effects that matrix cracks have on the estimation of operational limits through probabilistic analyses. The analyses compare the predictions of different models that consider some of the effects of the development of matrix cracks during loading. The importance of the methodology for taking into account matrix cracking in probabilistic failure analyses is discussed.



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Denna post skapades 2012-06-28. Senast ändrad 2017-06-28.
CPL Pubid: 159679

 

Institutioner (Chalmers)

Institutionen för sjöfart och marin teknik, Marine Design (2012-2014)

Ämnesområden

Energi
Materialvetenskap
Transport
Hållbar utveckling
Innovation och entreprenörskap (nyttiggörande)
Farkostteknik
Konstruktionsteknik
Konstruktionsmaterial

Chalmers infrastruktur

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Denna publikation ingår i:


Comparison of operational limit estimations for FRP laminates – effects of material modelling and stochastic behaviour