000021295 001__ 21295
000021295 005__ 20170522124347.0
000021295 04107 $$aeng
000021295 046__ $$k2017-05-15
000021295 100__ $$aGajdosova, K.
000021295 24500 $$aENDURANCE LIMIT OF FRP COMPOSITES USED FOR REINFORCEMENT OF CONCRETE STRUCTURES

000021295 24630 $$n23.$$pEngineering Mechanics 2017
000021295 260__ $$bBrno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno
000021295 506__ $$arestricted
000021295 520__ $$2eng$$aFRP reinforcement subjected to a constant load over time can suddenly fail after a time period called the endurance time. This phenomenon is known as creep rupture. Carbon fibers have a very good resistance to creep rupture. Aramid fibers are more susceptible to this phenomenon and glass and basalt fibers are the most susceptible ones. Results of various previous experimental programs showed the ratios of stress level at creep rupture to the initial strength to be in range of 0.18 to 0.93 for different types of FRP reinforcement. Simple example was chosen to calculate supposed stresses in reinforcement and according to results, only calculated values for CFRP reinforcement are lower than the 50-years residual stresses according to aforementioned experiments. The values of residual stresses are only extrapolated from shortterm tests and real experience in time is needed to decide about real long-term degradation of these materials.

000021295 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021295 653__ $$aFRP reinforcement, Creep rupture, Stress limitations.

000021295 7112_ $$aEngineering Mechanics 2017$$cSvratka, CZ$$d2017-05-15 / 2017-05-18$$gEM2017
000021295 720__ $$aGajdosova, K.$$iSonnenschein, R.
000021295 8560_ $$ffischerc@itam.cas.cz
000021295 8564_ $$s706643$$uhttps://invenio.itam.cas.cz/record/21295/files/0322.pdf$$yOriginal version of the author's contribution in proceedings, page 322, section REL.
000021295 962__ $$r21225
000021295 980__ $$aPAPER