Paper number 426
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BEHAVIOUR OF POLYMER - FIBER INTERFACE UNDER VARIOUS LOADING RATES |
Brantseva T.V.1, Antonov A.V.2, Gorbatkina Yu.A.2, Kerber M.L.1
1Mendeleev University of Chemical Technology of Russia, 9 Miusskaya pl,125190 Moscow, Russia
2Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygin ul. 117977 Moscow, Russia
| Summary | In this paper an attempt to study the adhesive strength of polymer - fiber interface within the wide range of loading rates (10-2 to 106 N/s) is described. A special device was constructed (pull-out method) and a technique to carry out an impact test on several polymer-steel wire systems (adhesives used: epoxy compounds, polypropylene, polysulfone, LC - copolyester of PET and p-hydroxybenzoic acid) has been developed. The main failure peculiarities of the systems regarded under quasistatic and dynamic loading conditions were examined. It was shown that the adhesive strength increases as the loading rate grows for all the systems under investigation. The effect of the loading rate on the adhesive strength values depends on the nature of the polymer matrix. Shifting from quasistatic to dynamic loading rates leads to the change in the slope of the adhesive strength/loading rate curves. |
Keywords | fiber/polymer joints, shear adhesive strength, pull-out technique, impact loading, quasistatic loading. |