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Thermodynamic theory of polymer elasticity[edit]

Hi, guys, thanks for your contributions regarding the molecular origin of polymer viscoelasticity. This is a very important topic, but I do not believe it belongs to the viscoelasticity article. There are non-polymer materials that exhibit viscoelasticity. Many rubber-like substances can be considered perfectly elastic, etc. Thus, I moved your text to the new article Thermodynamic theory of polymer elasticity. Please work there.

Quasi-linear viscoelasticity[edit]

It would be nice if there was a section on the quasi-linear viscoelasticity. It is a very important topic when talking about the mechanical properties of soft tissues.

Types of viscoelasticity: Volterra equation[edit]

What is called a Volterra equation here might be better discribed as a linear response. Reference to linear response function?

--Benjamin.friedrich 08:44, 14 December 2006 (UTC)

Practical Applications?[edit]

It'd be nice if there was at least a brief section discussing practical applications, so that the novice having no idea what this stuff is could get a sense of it. (I'm such a novice, having seen a sheet of "VISCOELASTIC MATERIAL" in a craft shop and wondered what on earth it was. I still don't know, but the name is cool :-) )

Mattress retailers claim that the latest, coolest type of mattress (and in Brazil they cost as much as FIVE plain foam mattresses) employs a NASA-developed viscoelastic material. In my POV, this is just salesman-talk and I am sure they do not know what they are talking about -- I am sure that "viscoelastic" is just a word they were instructed to memorize; they probably have no idea what it means. But I have tested such mattresses in a store (laid on, sat on, jumped on them) and can attest: as you lay down, initially they resist you. If you keep moving, they will feel stiff-ish. If you stop moving, they start deforming, adapting to the shape of your body. You sink a bit and then they stop. Then it feels like heaven's pillows underneath you. When you rise, at first you see your shape as in a mold and then they come back to their original shape. Cool indeed. SrAtoz (talk) 18:30, 13 May 2008 (UTC) SrAtoz, 13 May 2008.

Reference to anelasticity[edit]

A very nice page, but the reference to anelasticity does not seem to agree with the distinction between anelasticity and linear viscoelasticity made by Nowick and Berry [1]. Specifically, the Wiki page states that "... an anelastic material will NOT fully recover to its original state on the removal of load.", while Table 1-1 of [1] (on p. 3 of [1]) shows that complete recoverability is a requirement of anelasticity. Perhaps the statement could be rewritten as "... an anelastic material must fully recover to its original state on the removal of load."

[1] A.S. Nowick and B.S. Berry, "Anelastic Relaxation in Crystalline Solids" (Academic Press, 1972). Rjhawkins (talk) 00:46, 14 January 2008 (UTC)

Figure with stress-strain curves[edit]

The figure that shows stress-strain curves for a purely elastic and a viscoelastic material from my point of view is misleading. The curve (b) is for an anelastic material, a rare case of viscoelasticity. The more normal type includes creep, hence the strain does not go back to zero. (talk) 09:35, 3 September 2010 (UTC)

I can't add Persian Page to Languages[edit]

Although the Persian Wikipedia page of Viscoelasticity has been created, on the English page and on the Languages section there isn't any link to it. I have added Persian with the name "ویسکوالاستیسیته", but it does't appear in the English page. Shahriar70 (talk) 12:48, 27 August 2015 (UTC)

Copyright violation[edit]

Per WP:CV, I have just deleted a big chunk of the article (250 words) that has been copied verbatim from Ch1 (pages 1 and 2), S1.1 "Viscoelastic phenomena", of the Roderick Lakes book "Viscoelastic Solids" (you can check for yourself on Google Books at goo dot gl slash aBWO57). This material was apparently introduced in this May 2008 edit:

I'm not sure whether that user introduced anything else into the article that might violate copyright (a number of other edits were made around that time both to Viscoelascticity and Viscoplasticity), but just flagging it up for regular editors of this article to be aware of :) . (talk) 09:49, 22 February 2016 (UTC)

Small edit: stretched to stressed[edit]

One of the first sentences reads, "Elastic materials strain when stretched and quickly return to their original state once the stress is removed." Wouldn't 'stressed' instead of 'stretched' be more accurate? — Preceding unsigned comment added by Marshall2389 (talkcontribs) 03:30, 29 December 2016 (UTC)