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Keywords: Young's modulus
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Journal Articles
J Exp Biol (2015) 218 (17): 2806–2814.
Published: 1 September 2015
... that dopamine but not water content enables stretch and thinning of cuticle in the rapid phase of engorgement. Cuticular plasticization Viscoelastic Plastic deformation Dopamine Young's modulus Extensibility Amblyomma hebraeum Kelvin–Voigt In ixodid ticks, the feeding period comprises...
Journal Articles
J Exp Biol (2012) 215 (3): 405–415.
Published: 1 February 2012
... (Young's modulus, E ) of the material (keratin) and the geometry of the rachises, more precisely the second moment of area ( I ). Two independent methods were employed to determine Young's modulus of feather rachis keratin. Moreover, the second moment of area and the bending stiffness of feather shafts...
Journal Articles
J Exp Biol (2009) 212 (9): 1413–1420.
Published: 1 May 2009
... and caudally in all individuals. Young's modulus ( E ) ranged from 3.67 to 8.40 GPa, with a mean of 6.48 GPa. The flexural stiffness ( EI ) differed significantly between ribs, and the hollow cylinder morphology increased the flexural stiffness by 12.0% over a solid, circular cross-section rod with the same...
Journal Articles
J Exp Biol (2007) 210 (24): 4272–4278.
Published: 15 December 2007
...), 12 h (paper-shell stage), and 7 days(hard-shell stage) following molting. We measured and compared the flexural stiffness, Young's modulus of elasticity (in tension), and tensile strength for each postmolt stage. We found that the hard-shell cuticle has a flexural stiffness fully four orders...
Journal Articles
Journal Articles
Journal Articles
J Exp Biol (1999) 202 (18): 2495–2503.
Published: 15 September 1999
...John D. Currey ABSTRACT The bending strength of a wide variety of bony types is shown to be nearly linearly proportional to Young’s modulus of elasticity/100. A somewhat closer and more satisfactory fit is obtained if account is taken of the variation of yield strain with Young’s modulus...
Journal Articles
J Exp Biol (1995) 198 (4): 1029–1033.
Published: 1 April 1995
...Richard H. C. Bonser; Peter P. Purslow ABSTRACT The flexural stiffness of the rachis varies along the length of a primary feather, between primaries and between species; the possible contribution of variations in the longitudinal Young’s modulus of feather keratin to this was assessed. Tensile...