New insights into tackling large amplitude oscillatory shear from an analytic perspective DOI Creative Commons
Pengguang Wang, Jiatong Xu, Ziyu Zhou

et al.

Journal of Applied Physics, Journal Year: 2025, Volume and Issue: 137(7)

Published: Feb. 18, 2025

Large amplitude oscillatory shear (LAOS) has been widely applied for performing rheological analysis of complex fluids, especially yield stress fluids (YSFs) encountered in nature, daily life, or industry. The Fourier transform (FT) rheology is considered one the mainstays LAOS since FT an essential mathematic tool numerous signal fields. However, challenge understanding FT, diverse mathematical frameworks, and complicated data processing impede intuitive accessibility efficient implementation existing, even admirably successful methods. Thus, developing novel methods simplifying methodology remain unmet need. In this context, motivated by analytic geometry using coordinates instead geometries, analytical perspective was highlighted abstracting coefficients from stress/strain waveforms substituting them into solutions methods, thereby proposing a new (aLAOS) approach to tackle reversely rheology. More specifically, signals measures can be precisely reconstructed waveforms. influences harmonics on were described. Furthermore, considering acquired results tests various typical YSFs, it demonstrated that aLAOS method yielded same as other could visually distinguish contribution arbitrary higher harmonics. Consequently, potentially alternative non-trivial candidate convenient treatment LAOS, thus utilizing assist calculations existing methodologies.

Language: Английский

New insights into tackling large amplitude oscillatory shear from an analytic perspective DOI Creative Commons
Pengguang Wang, Jiatong Xu, Ziyu Zhou

et al.

Journal of Applied Physics, Journal Year: 2025, Volume and Issue: 137(7)

Published: Feb. 18, 2025

Large amplitude oscillatory shear (LAOS) has been widely applied for performing rheological analysis of complex fluids, especially yield stress fluids (YSFs) encountered in nature, daily life, or industry. The Fourier transform (FT) rheology is considered one the mainstays LAOS since FT an essential mathematic tool numerous signal fields. However, challenge understanding FT, diverse mathematical frameworks, and complicated data processing impede intuitive accessibility efficient implementation existing, even admirably successful methods. Thus, developing novel methods simplifying methodology remain unmet need. In this context, motivated by analytic geometry using coordinates instead geometries, analytical perspective was highlighted abstracting coefficients from stress/strain waveforms substituting them into solutions methods, thereby proposing a new (aLAOS) approach to tackle reversely rheology. More specifically, signals measures can be precisely reconstructed waveforms. influences harmonics on were described. Furthermore, considering acquired results tests various typical YSFs, it demonstrated that aLAOS method yielded same as other could visually distinguish contribution arbitrary higher harmonics. Consequently, potentially alternative non-trivial candidate convenient treatment LAOS, thus utilizing assist calculations existing methodologies.

Language: Английский

Citations

0