Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Analytical Approximation of Relaxation Time Spectrum from Dynamic Creep Compliance

동적 크리프 컴플라이언스를 이용한 완화시간분포의 근사계산법

  • Choi, Joong Hwan (Department of Polymer and Fiber Examination, Korean Intellectual Property Office)
  • 최중환 (특허청 고분자섬유심사과)
  • Received : 2014.08.26
  • Accepted : 2014.10.05
  • Published : 2014.10.31
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Abstract

The relaxation time spectrum is a very effective parameter for transforming material functions even with a limited amount of data. The spectrum also helps in understanding the relaxation behavior of polymers at the molecular scale. In this study, a relaxation time spectrum based on Marin-Graessley's dynamic compliance model was calculated using Fuosso-Kirkwood's complex analysis. The resulting model could successfully describe the viscoelastic behavior of mono-disperse polystyrene. However, it was clear that a more effective numerical analysis method was needed to obtain more accurate parameter values.

Keywords

References

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