R G C Arridge and P J Barham 1986 J. Phys. D: Appl. Phys. 19 L89 doi:10.1088/0022-3727/19/6/001
R G C Arridge and P J Barham
Show affiliationsA powerful new experimental method of determining the dynamic mechanical behaviour of viscoelastic materials is described. The method, Fourier transform mechanical spectroscopy (FTMS), consists of superposing and deconvoluting discrete Fourier transforms obtained from a single stress relaxation experiment using a novel sampling scheme. The theory of the sampling scheme and the superposition of the transforms is described elsewhere. In this paper the authors present the results of using the new method on Nylon over the frequency range 5*10-4 to 20 Hz and temperatures from 25 to 110 degrees C. There is good agreement between the values of storage and loss moduli, obtained by means of the transform method, and those obtained by conventional means. An activation energy of 143 kcal mol-1 is obtained for the relaxation in this temperature range. The new method has considerable potential for the rapid determination of the mechanical properties of novel polymers and composites.
62.40.+i Anelasticity, internal friction, stress relaxation, and mechanical resonances
Issue 6 (14 June 1986)
R G C Arridge and P J Barham 1986 J. Phys. D: Appl. Phys. 19 L89
Qiao Sun et al 2009 Metrologia 46 646
P Defraigne and G Petit 2003 Metrologia 40 184
Walter Bich et al 2006 Metrologia 43 S161
Jason Lindler and Norman M Wereley 2003 Smart Mater. Struct. 12 305
Nathalie Deruelle and Joseph Katz 2005 Class. Quantum Grav. 22 421
Philip Ball 2002 Nanotechnology 13 R15
M M Akbar and Saurya Das 2004 Class. Quantum Grav. 21 1383
John W Norbury 1989 Eur. J. Phys. 10 237
H Henriksson et al 2002 Plasma Phys. Control. Fusion 44 1253