Orientational anisotropy of bead-spring star chains during creep process
نویسندگان
چکیده
منابع مشابه
Accuracy of bead-spring chains in strong flows
We have analyzed the response of bead-spring chain models in strong elongational flow as the amount of polymer represented by a spring s changed. We examined the longest relaxation time of the chains which is used to quantify the strength of the flow in terms of a Weissenberg umber. A chain with linear springs can be used to predict the longest relaxation time of the nonlinear chains if the lin...
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We present a study of the coarse-graining of polymers into bead-spring chains using statistical mechanics. The force–extension behavior is examined at different levels of coarse-graining. A direct result of the springs being decoupled is that the force–extension behavior depends only on the number of flexibility lengths (e.g. persistence or Kuhn lengths) represented by each spring. This dimensi...
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Creep age forming (CAF) process is a novel metal forming method with major benefits including improved mechanical properties and cost reduction for aviation industry applications. CAF happens due to creep phenomenon and stress-release during the artificial aging of heat-treatable aluminum alloys. In this work, the creep age forming of 7075 Aluminum alloy at 120, 150 and 180 °C for 6, 24 and 48...
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Infants prefer to look at horizontal and vertical gratings rather than at oblique gratings only when they are at or near threshold spatial frequencies, as would be expected if acuity for oblique edges is lower than that for horizontal and vertical edges. That such a bias exists as early as 6 weeks of age suggests that the orientational asymmetry of the visual system depends on endogenous matura...
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A recently developed density functional theory (DFT) for tethered bead-spring chains is used to investigate colloidal forces for the good solvent case. A planar surface of tethered chains is opposed to a bare, hard wall and the force exerted on the bare wall is calculated by way of the contact density. Previously, the case of large wall separation was investigated. The density profiles of the u...
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ژورنال
عنوان ژورنال: Journal of Polymer Science Part B: Polymer Physics
سال: 2006
ISSN: 0887-6266,1099-0488
DOI: 10.1002/polb.21026