Nonlinear Stress Relaxation of H-Shaped Polymer Melt Revisited Using a Stochastic Pom-Pom Model

2003 ◽  
Vol 36 (6) ◽  
pp. 2141-2148 ◽  
Author(s):  
Sheng C. Shie ◽  
Chang T. Wu ◽  
Chi C. Hua
Keyword(s):  
Stress Relaxation ◽  
Polymer Melt ◽  
Nonlinear Stress

scholarly journals Nonlinear stress relaxation of transiently crosslinked biopolymer networks

2021 ◽  
Vol 104 (3) ◽  
Author(s):  
Sihan Chen ◽  
Chase P. Broedersz ◽  
Tomer Markovich ◽  
Fred C. MacKintosh
Keyword(s):  
Stress Relaxation ◽  
Nonlinear Stress

scholarly journals Fractional Stress Relaxation Model of Rock Freeze-Thaw Damage

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Q. Liu ◽  
W. Chen ◽  
J. K. Guo ◽  
R. F. Li ◽  
D. Ke ◽  
...  
Keyword(s):  
Stress Relaxation ◽  
Fatigue Loading ◽  
Element Model ◽  
Model Parameters ◽  
Rock Stress ◽  
Relaxation Equation ◽  
Freeze Thaw ◽  
Thaw Cycle ◽  
Nonlinear Stress ◽  
Freeze Thaw Cycle

Freeze-thaw cycle is a type of fatigue loading, and rock stress relaxation under freeze-thaw cycles takes into account the influence of the freeze-thaw cycle damage and deterioration. Rock stress relaxation under freeze-thaw cycles is one of the paramount issues in tunnel and slope stability research. To accurately describe the mechanical behaviour of stress relaxation of rocks under freeze-thaw, the software element is constructed based on the theory of fractional calculus to replace the ideal viscous element in the traditional element model. The freeze-thaw damage degradation of viscosity coefficient is considered. A new three-element model is established to better reflect the nonlinear stress relaxation behavior of rocks under freeze-thaw. The freeze-thaw and stress relaxation of rock are simulated by ABAQUS, the relevant model parameters are determined, and the stress relaxation equation of rock under freeze-thaw cycle is obtained based on numerical simulation results. The research shows that the test results are consistent with the calculated results, indicating that the constitutive equation can better describe the stress relaxation characteristics of rocks under freeze-thaw and provide theoretical basis for surrounding rock support in cold region.

Nonlinear Stress Relaxation of Polyisobutylene in Simple Extension

1976 ◽  
Vol 20 (1) ◽  
pp. 141-152 ◽  
Author(s):  
Carl R. Taylor ◽  
Roberto Greco ◽  
Ole Kramer ◽  
John D. Ferry
Keyword(s):  
Stress Relaxation ◽  
Simple Extension ◽  
Nonlinear Stress

scholarly journals Nonlinear Stress Relaxation of Scarcely Entangled Chains in Primitive Chain Network Simulations

2013 ◽  
Vol 41 (1) ◽  
pp. 13-19 ◽  
Author(s):  
Kenji Furuichi ◽  
Chisato Nonomura ◽  
Yuichi Masubuchi ◽  
Hiroshi Watanabe
Keyword(s):  
Stress Relaxation ◽  
Nonlinear Stress ◽  
Network Simulations

scholarly journals Stress relaxation in the nonequilibrium state of a polymer melt

2014 ◽  
Vol 58 (6) ◽  
pp. 1981-1991 ◽  
Author(s):  
Efren A. Andablo-Reyes ◽  
Ele L. de Boer ◽  
Dario Romano ◽  
Sanjay Rastogi
Keyword(s):  
Stress Relaxation ◽  
Polymer Melt ◽  
Nonequilibrium State

Nonlinear Stress Relaxation of ABS Polymers in the Molten State

2001 ◽  
Vol 34 (9) ◽  
pp. 3100-3107 ◽  
Author(s):  
Yuji Aoki ◽  
Akira Hatano ◽  
Takeshi Tanaka ◽  
Hiroshi Watanabe
Keyword(s):  
Stress Relaxation ◽  
Molten State ◽  
Nonlinear Stress
Sign in / Sign up

Export Citation Format

Share Document