By Yu Bai, Thomas Keller
The authors clarify the adjustments within the thermophysical and thermomechanical houses of polymer composites below increased temperatures and hearth stipulations. utilizing microscale actual and chemical recommendations they permit researchers to discover trustworthy suggestions to their engineering wishes at the macroscale. In a special mix of experimental effects and quantitative types, a framework is constructed to realistically expect the habit of quite a few polymer composite fabrics over a variety of thermal and mechanical quite a bit. additionally, the authors deal with severe fireplace situations as much as greater than 1000?C for 2 hours, proposing heat-protection how to enhance the fireplace resistance of composite fabrics and full-scale structural individuals, and speak about their functionality after hearth exposure.
Thanks to the microscopic process, the constructed types are legitimate for a number of polymer composites and structural participants, making this paintings appropriate to a large viewers, together with fabrics scientists, polymer chemists, engineering scientists in undefined, civil engineers, mechanical engineers, and people operating within the of civil infrastructure.
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Extra resources for High Temperature Performance of Polymer Composites
Example text
The bonds in polymers can be divided into two major groups: the primary bonds and the secondary bonds. The first group includes the strong covalent intramolecular bonds in the polymer chains and cross-links of thermosets. A covalent bond is a form of chemical bonding that is characterized by the sharing of pairs of electrons between atoms, or between atoms and other covalent bonds. The attraction-to-repulsion stability that forms between atoms when they share electrons is known as covalent bonding.
2: Actions on Structures Exposed to Fire, European Committee for Standardization, Brussels. SIA (1997) SN 520-183. La Protection Contre l’Incendie dans le Construction, Swiss Society of Engineers and Architects, Zurich. 1 Introduction Fiber-reinforced polymer (FRP) composite materials consist of strong continuous or discontinuous fibers surrounded by a weaker polymer matrix material. Although fibers alone can retain their strength at elevated and high temperatures, most polymer matrices are vulnerable at already elevated temperatures.
2008) Modal parameter identification for a GFRP pedestrian bridge. Compos. , 82 (1), 90–100. 16. , Cosenza, 17. 18. 19. 20. 21. 22. 23. 24. , and Triantafillou, T. (2002) Fiber-reinforced polymer composites for construction—state-of-the-art review. J. Compos. , 6 (2), 73–87. , and Wu, C. (2012) Pre-buckling and post-buckling shear failure at web-flange junction of pultruded GFRP beams. Mater. Struct. 46, 1143–1154. Keller, T. (2000) New bridges and buildings constructed from translucent GFRP sandwich panels and glued GFRP elements.