화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2008년 가을 (10/09 ~ 10/10, 일산킨텍스)
권호 33권 2호
발표분야 고분자 가공/복합재료
제목 New Algorithms for Analysis of Linear Viscoelastic Experiments: Relaxation Time Spectrum and Time-Temperature Superposition
초록 Discrete relaxation time spectrum is necessary for calculation of nonlinear viscoelastic flow which is important in polymer processing. Since most rheometer cannot measure linear viscoelasticity over wide frequency range which is required for identification of materials, time-temperature superposition is required for the determination of relaxation time spectrum. We developed simple and advanced algorithms for discrete relaxation time spectrum and time-temperature superposition. The algorithm for the relaxation time spectrum is based on wavelet transform and those for time-temperature superposition is based on geometric interpretation of linear viscoelasticity.
저자 조광수
소속 경북대
키워드 Time-Temperature Superposition; Relaxation Time Spectrum
E-Mail