Topic
Flexural strength
About: Flexural strength is a research topic. Over the lifetime, 52123 publications have been published within this topic receiving 846504 citations. The topic is also known as: bending strength & modulus of rupture.
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TL;DR: In this paper, the effect of the melt flow index of polypropylene (PP)/natural fiber composites was investigated, and maleic anhydride (MAH) grafted PP was used as a compatibilizer to improve the interfacial interaction between hydrophilic natural fibers and the hydrophobic matrix PP.
222 citations
TL;DR: In this article, an additive manufacturing technique (AM) for ceramics, based on Al2O3-ZrO2 powder by means of Selective Laser Melting (SLM), is presented.
222 citations
TL;DR: In this article, it was demonstrated that composite strength and stress-strain behavior depend on in situ fibre strength, matrix composition, test technique and atmosphere of test, and failure strains of 1%.
Abstract: The use of silicon carbide-type fibres to reinforce lithium aluminosilicate glass ceramics results in composites with exceptional levels of strength and toughness. It is demonstrated that composite strength and stress-strain behaviour depend onin situ fibre strength, matrix composition, test technique and atmosphere of test. Both linear and non-linear tensile stress-strain curves are obtained with ultimate strengths at 22° C approaching 700 MPa and failure strains of 1%. Flexure tests performed at up to 1000° C in air are compared with data obtained in argon to demonstrate a significant dependence of strength and failure mode on test atmosphere. Finally, glass ceramic matrix composite performance is compared with a silicon carbide fibre-reinforced epoxy system to demonstrate the importance of matrix failure strain on strength and stress-strain behaviour.
221 citations
TL;DR: In this paper, natural fiber-reinforced biodegradable polyester composites were prepared from surface-untreated or -treated abaca fibers (length ca. 5 mm) by melt mixing and subsequent injection molding.
Abstract: Natural fiber-reinforced biodegradable polyester composites were prepared from biodegradable polyesters and surface-untreated or -treated abaca fibers (length ca. 5 mm) by melt mixing and subsequent injection molding. Poly(butylene succinate)(PBS), polyestercarbonate (PEC)/poly(lactic acid)(PLA) blend, and PLA were used as biodegradable polyesters. Esterifications using acetic anhydride and butyric anhydride, alkali treatment, and cyanoethylation were performed as surface treatments on the fiber. The flexural moduli of all the fiber-reinforced composites increased with fiber content. The effect of the surface treatment on the flexural modulus of the fiber-reinforced composites was not so pronounced. The flexural strength of PBS composites increased with fiber content, and esterification of the fiber by butyric anhydride gave the best result. For the PEC/PLA composites, flexural strength increased slightly with increased fiber content (0-20 wt.-%) in the case of using untreated fiber, while it increased considerably in the case of using the fiber esterified by butyric anhydride. For the PLA composite, flexural strength did not increase with the fiber reinforcement. The result of soil-burial tests showed that the composites using untreated fiber have a higher weight loss than both the neat resin and the composites made using acetylated fiber.
220 citations
TL;DR: In this article, the authors investigated mechanical and permeability properties at early ages of an alkali-activated slag concrete (AASC) reinforced with steel fibers and found that compressive, splitting tensile and flexural strengths, flexural notch sensitivity, pull-out and water absorption properties were evaluated.
220 citations