Topic > Structural suitability and modeling of fiberglass...

Introduction and literature reviewContextFree-form surfaces prevail in contemporary architecture. Over the past two decades there has been an increase in the use of smooth and curved surfaces, which can be attributed to improvements in 3D modeling techniques and advances in finite element analysis. The complex geometries, examples of which can be seen in Figure ? below, pose challenges in developing a feasible building envelope using conventional building materials such as steel and concrete. This has therefore created the need to investigate the suitability of alternative building materials such as glass fiber reinforced polymers (GFRP) for structural design. In construction, geometrically complex free shapes are made from simpler individual panels, which must be produced to high tolerances to fit together and fulfill their purpose. You therefore want a material that lends itself to prefabrication and lightweight construction. It is worth mentioning here that the issue of paneling or efficient streamlining is a broad research interest separate from that of material selection [1] and will not be addressed in this report, the focus here is on structural suitability and modeling . Glass Fiber Reinforced Polymers (GFRP) Glass fiber reinforced polymers are composed of glass fibers nested in a polymer resin matrix. The glass fibers provide stiffness and tensile strength, while the resin matrix binds the material together, provides compressive strength, and transfers loads to the fibers. The final product is waterproof, corrosion resistant and weather resistant, making it suitable for long-term use in outdoor conditions. Its specific strength is high, typically higher than that of both... half the article... and Damage Theories. Dover Courier Publications, 1991.[21] Bryan, G.H., “Proc. London Mathematics. Soc.", vol. 22, page 54, 1891.[22] SP Timoshenko, “Toro. Polytechnic. Ist." 1907.[23] SP Timoshenko and JM Gere, Elastic Stability Theory, 2nd edition. Mineola, NY: Dover Publications Inc., 2009.[24] M. W. Darlington and P. H. Upperton, “Procedures for Engineering Design with Short Fiber Reinforced Thermoplastics,” in Mechanical Properties of Reinforced Thermoplastics, D. W. Clegg and A. A. Collyer, Eds. Springer Netherlands, 1986, pp. 205–248.[25] B. Committee, “BS EN 1991-1-1:2002 - Eurocode 1. Actions on structures. General actions. Density, self-weight, imposed loads for buildings”, BSI, 2002.[26] FL Matthews and RD Rawlings, Composite Materials: Engineering and Science, 1 edition. Woodhead Publishing, 1999.