Characterization of the Mechanical Behavior of Sunflower Stem for Bio-composite Applications
The aim of this study is to investigate the mechanical properties of sunflower stems. Sunflower stems have two parts: the bark and the pith. Since the mechanical properties of the bark and those of the pith are different, separate mechanical tests were performed. The influence of both the moisture content and of the location of the specimens along the stem was studied. An increase of moisture content of bark and pith was found to reduce their Young’s modulus. The Young’s modulus increases with the location of the specimen along the stem.
KeywordsSunflower stems Mechanical properties Morphologies Specimen location
- 1.Mohanty AK, Misra M, Drzal LT (2002) Sustainable bio-composites from renewable resources: opportunities. J Polym Environ 10:19–26Google Scholar
- 2.Mukherjee PS, Satyanarayana KG (1986) An empirical evaluation of structure-property relationships in natural fibres and their fracture behaviour. J Mater Sci 21:4162–4168Google Scholar
- 4.Agricultural residues, biomass energy centre (2011) http://www.biomassenergycentre.org.uk/portal/page?_pageid=75,17302&_dad=portal&_schema=PORTAL
- 5.FAO Statistics Division (2012) http://faostat.fao.org/default.aspx?PageID=567#ancor
- 6.Srebotnik E, Messner K (1994) A simple method that uses differential staining and light microscopy to assess the selectivity of wood delignification by white rot fungi. Appl Environ Microbiol 60:1383Google Scholar