Large amplitude oscillatory shear (LAOS) test has been used to elucidate the nonlinear viscoelastic behaviors of soft matter or complex fluids under large and rapid deformations encountered in production and application, especially for most polymeric materials. In this work, combined with recovery rheology, the physical visualization of the start and end yield stress values of yield stress fluids determined by the algebraic stress bifurcation (ASB) method is further interpreted in extenso. Facing the issue of unrecoverable deformations that may occur below the yield stress, the ASB method suggests the start and end yield stresses by considering the timescale, thereby linking the yield stress determination and nonlinear behavior analysis in LAOS. The unusual sharp corners in the Lissajous curves induced by the Kamani–Donley–Rogers (KDR) model are also revealed and treated by viscosity regularization. The correlation among the yield points determined by ASB and stress bifurcation, the responses of the KDR model, and corresponding results and insights by main LAOS analyses in representative cases are comprehensively discussed. This work contributes to a new understanding of stress bifurcation.
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January 2025
Research Article|
January 10 2025
The stress bifurcation and large amplitude oscillatory shear behavior of Kamani–Donley–Rogers model
Pengguang Wang (王鹏广)
;
Pengguang Wang (王鹏广)
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Resources, Validation, Visualization, Writing – original draft)
1
Advanced Rheology Institute, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University
, Shanghai 200240, China
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Ziyu Zhou (周子愉);
Ziyu Zhou (周子愉)
(Formal analysis, Validation, Visualization, Writing – original draft)
1
Advanced Rheology Institute, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University
, Shanghai 200240, China
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Qingyu Liao (廖晴雨);
Qingyu Liao (廖晴雨)
(Formal analysis, Validation, Visualization, Writing – original draft)
1
Advanced Rheology Institute, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University
, Shanghai 200240, China
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Huimin Ren (任慧敏);
Huimin Ren (任慧敏)
(Formal analysis, Validation, Visualization, Writing – original draft)
1
Advanced Rheology Institute, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University
, Shanghai 200240, China
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Xu Du (杜旭);
Xu Du (杜旭)
(Formal analysis, Validation, Visualization, Writing – original draft)
2
Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences
, Hefei 230031, China
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Hongbin Zhang (张洪斌)
Hongbin Zhang (张洪斌)
a)
(Conceptualization, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing)
1
Advanced Rheology Institute, Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University
, Shanghai 200240, China
a)Author to whom correspondence should be addressed: [email protected]
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a)Author to whom correspondence should be addressed: [email protected]
Physics of Fluids 37, 013115 (2025)
Article history
Received:
November 21 2024
Accepted:
December 21 2024
Citation
Pengguang Wang, Ziyu Zhou, Qingyu Liao, Huimin Ren, Xu Du, Hongbin Zhang; The stress bifurcation and large amplitude oscillatory shear behavior of Kamani–Donley–Rogers model. Physics of Fluids 1 January 2025; 37 (1): 013115. https://doi.org/10.1063/5.0249947
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