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Structure and properties of some vegetable fibres

Part 2Pineapple fibre (Anannus Comosus)

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Abstract

The stress-strain curves for pineapple leaf fibre have been analysed. Ultimate tensile strength (UTS), initial modulus (YM), average modulus (AM) and elongation of fibres have been calculated as functions of fibre diameter test length and test speed. UTS, YM, and elongation lie in the range of 362 to 748 MN m−2, 25 to 36 GN m−2, and 2.0 to 2.8%, respectively for fibres of diameters ranging from 45 to 205μm. UTS Was found to decrease with increasing test lengths in the range 15 to 65 mm. Various mechanical parameters show marginal changes with change in speed of testing in the range of 1 to 50 mm min−1. The above results are explained on the basis of structural variables of the fibre. Scanning electron microscope studies of the fibres reveal that the failure of the fibres is mainly due to large defect content of the fibre bo1h along the fibre and through the cross-section, The crack is always initiated by the defective cells and further aggravated by the weak bonding material between the cells.

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Authors and Affiliations

  1. Materials Division, Regional Research Laboratory (CSIR), 695 019, Trivandrum, India

    P. S. Mukherjee & K. G. Satyanarayana

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  1. P. S. Mukherjee
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  2. K. G. Satyanarayana
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Mukherjee, P.S., Satyanarayana, K.G. Structure and properties of some vegetable fibres. J Mater Sci 21, 51–56 (1986). https://doi.org/10.1007/BF01144698

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  • DOI: https://doi.org/10.1007/BF01144698

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