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Mechanics in Engineering ›› 2004, Vol. 26 ›› Issue (5): 0-0.doi: 10.6052/1000-0992-2003-178

• Mechanics in engigeering •    

RESPONSE OF THIXOTROPY FLUID UNDER OSCILLATORY LOADING

  

  • Received:2003-05-07 Revised:2003-07-23 Online:2004-10-10 Published:2004-10-10

Abstract: The constitutive equation of thixotropic fluid was of the Moore's model in this paper. The mechanical behaviors under oscillatory loading were discussed. The finite difference method was used. The results show that: 1) In the steady state, the parameter which described the internal structural state in the fluid was the periodic function of time; 2) The relation between the stress and the strain was a closed hysteretic cycle. These properties show that the thixotropic fluid is much more complex than the other non-Newtonian fluids.

Key words: thixotropy, oscillatory loading, hysteretic cycle, Moore's model