Effect of the Presence of Diblock Copolymer on the Nonlinear Elastic and Viscoelastic Properties of Elastomeric Triblock Copolymers

2005 ◽  
Vol 38 (18) ◽  
pp. 7807-7818 ◽  
Author(s):  
Alexandra Roos ◽  
Costantino Creton
Keyword(s):  
Diblock Copolymer ◽  
Viscoelastic Properties ◽  
Triblock Copolymers ◽  
Nonlinear Elastic

On the Applicability of Sneddon's Solution for Interpreting the Indentation of Nonlinear Elastic Biopolymers

2014 ◽  
Vol 81 (9) ◽  
Author(s):  
Man-Gong Zhang ◽  
Jinju Chen ◽  
Xi-Qiao Feng ◽  
Yanping Cao
Keyword(s):  
Elastic Properties ◽  
Viscoelastic Properties ◽  
Contact Theory ◽  
Elastic Contact ◽  
Flat Punch ◽  
Linear Elastic ◽  
Contact Models ◽  
Properties Of Materials ◽  
Nonlinear Elastic ◽  
Viscoelastic Contact

Indentation has been widely used to characterize the mechanical properties of biopolymers. Besides Hertzian solution, Sneddon's solution is frequently adopted to interpret the indentation data to deduce the elastic properties of biopolymers, e.g., elastic modulus. Sneddon's solution also forms the basis to develop viscoelastic contact models for determining the viscoelastic properties of materials from either conical or flat punch indentation responses. It is worth mentioning that the Sneddon's solution was originally proposed on the basis of linear elastic contact theory. However, in both conical and flat punch indentation of compliant materials, the indented solid may undergo finite deformation. In this case, the extent to which the Sneddon's solution is applicable so far has not been systematically investigated. In this paper, we use the combined theoretical, computational, and experimental efforts to investigate the indentation of hyperelastic compliant materials with a flat punch or a conical tip. The applicability of Sneddon's solutions is examined. Furthermore, we present new models to determine the elastic properties of nonlinear elastic biopolymers.

Phase Behavior and Viscoelastic Properties of Thermoplastic Elastomer Gels Based on ABC Triblock Copolymers

2005 ◽  
Vol 38 (18) ◽  
pp. 7798-7806 ◽  
Author(s):  
Daisuke Yamaguchi ◽  
Michel Cloitre ◽  
Pierre Panine ◽  
Ludwik Leibler
Keyword(s):  
Phase Behavior ◽  
Viscoelastic Properties ◽  
Triblock Copolymers ◽  
Thermoplastic Elastomer ◽  
Abc Triblock Copolymers

Tethered Diblock Copolymer Chains on Platelets Prepared by Semicrystalline ABC Triblock Copolymers in Toluene with Trace Amounts of Water

2007 ◽  
Vol 40 (22) ◽  
pp. 8022-8030 ◽  
Author(s):  
Weihuan Huang ◽  
Chunxia Luo ◽  
Jilin Zhang ◽  
Kai Yu ◽  
Yanchun Han
Keyword(s):  
Diblock Copolymer ◽  
Triblock Copolymers ◽  
Abc Triblock Copolymers

The Effect of Material Nonlinearity on the Dynamics of Hull/Mooring Coupled System

2013 ◽  
Author(s):  
Jiayu Qian ◽  
Liping Sun ◽  
Linfeng Song
Keyword(s):  
Viscoelastic Properties ◽  
Steel Wire ◽  
Coupled System ◽  
Nonlinear Stiffness ◽  
Time Domain Simulation ◽  
Mooring Lines ◽  
Linear And Nonlinear ◽  
The Difference ◽  
The Time Domain ◽  
Nonlinear Elastic

The dynamics of a turret-moored FPSO with 12 catenary chain-steel wire-chain mooring lines are studied to investigate the influence of the hull/mooring coupled system from both linear and nonlinear stiffness of steel wire. The two simulated results are compared with experimental statistics, it indicated that the results using nonlinear stiffness are slightly larger than using linear stiffness and closer when compared with the experimental statistics. Then it illustrates that the polynomial approximation of nonlinearity for steel wire is applicable. The difference between linear and nonlinear results of steel wire is not apparent due to steel wire doesn’t belong to the viscoelastic material. This paper also researches the motion of FPSO with taut chain-polyester-chain mooring lines because polyester rope has viscoelastic properties. The results are unstable when using lower and upper linear stiffness in the time-domain simulation. But the dynamic response of FPSO is good by nonlinear stiffness. Thus, the nonlinear elastic method should be used in engineering works to decrease the damaged risk of the structure.

Modeling Viscoelastic Properties of Triblock Copolymers: A DPD Simulation Study

2009 ◽  
Author(s):  
Yelena R. Sliozberg ◽  
Jan W. Andzelm ◽  
John K. Brennan ◽  
Mark R. Vanlandingham ◽  
Victor Pryamitsyn ◽  
...  
Keyword(s):  
Simulation Study ◽  
Viscoelastic Properties ◽  
Triblock Copolymers ◽  
Dpd Simulation

scholarly journals Fluctuation Effects on Viscoelastic Properties of Diblock Copolymer Solutions in Disordered State

2007 ◽  
Vol 39 (6) ◽  
pp. 509-513 ◽  
Author(s):  
Yoshiaki Takahashi ◽  
Yuki Ojika ◽  
Yoshihiko Akazawa ◽  
Atsushi Takano ◽  
Yushu Matsushita
Keyword(s):  
Diblock Copolymer ◽  
Viscoelastic Properties ◽  
Fluctuation Effects
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