Penile stress/strain relationship

Much obliged mbuc, I have upped my ADS weight to 870g so will see how it goes.

I do not have any more weight available at the moment.

No probs, bluenun. It’s still a leap of faith to say a little extra weight will trigger more growth but here’s hoping!

I don’t think we can say it shows that. How we encourage the biological growth remains open to all sorts of speculation.

What I would say is that for people who want to hang low weights for long periods then a weight of less than 250g is probably useless and that 1000g-1200g is possibly a good weight to use since it provides a good stretch while not being impracticably heavy.

That kind of stress does seem to tie in very well with the studies behind the Jes type devices.

Good point, Shiver. I wonder if they did a similar stress/strain investigation when designing them and concluded that was the best stretch for the lowest tension. Or maybe that sort of tension, by pure coincidence, was the maximum that could be easily used with any devisable attachment system? I don’t know, maybe both were true.

Certainly the latter, and I would like to think the former too. It does make a lot of sense though when looking at your graph. I think basically any stretch that is greater than the elastin pull/opposition would do something, but I would aim to get on the side of the curve that is starting to flatten out at greater tension (I’d guess >600g on your graph). When I think of elastin, for some slightly irrational reason I tend to consider that it was only designed to overcome gravity, and anything greater than 1G could be considered an adaptive load.

The other thing to consider is that if that graph were on a timeline, you would start to see the curve shift or creep over time, and the same amount of stress would produce a slightly diminishing strain.

Thanks mbuc, for posting the results of your experiment! As an engineer, I found it very interesting to see some objective data as opposed to the more common subjective opinions we usually read. Your data matches well with the ranges of force provided by the PeniMaster, 0-1150 grams. It looks to me that the knee of your curve is about 800 grams. That would be the point at which the most stretch for the weight (comfort) would occur. I’ve been wearing the PeniMaster now for 3 months at the 900 gram level for as many hours as I can stand, currently about 12-13 hours a day. So your data supports my strategy. I plan on measuring again at the end of 4 months because that is the first point that matches the “predicted gains” curves for these type devices that are found on their web sites that are supposedly built from test data, but who knows if they are believable. The curves I have seen are for highest, average, and lowest gains for the test subjects. The lowest is about 1/4 inch for 4 months. I will be quite satisfied if I match that.

TexRock,

Seems like the amount of time you are wearing the PM, as well as the 900 gram level, you should make some excellent gains within the 4 months.

Check out supersizeit’s penismaster post here, if you haven’t already:

Penimaster Math

TexRock,

From what you are saying, you have the perfect mentality for PE. Aim high, sights low, and a dogged determination to stick to your guns. I’ll be looking out for your 4 month postings.

Wow, I will never be able to look at my engineering homework the same ever again. Watch out for the fracture strength.

I don’t. Creep is a property of any viscoelastic material. As far as I know, permanent deformation does not occur as a consequence of creep. The tissues are eventually restored to their original lengths. As I understand it, permanent deformation takes place by breaking and reforming cross-linkages between adjacent collagen fibers.

I think you can find the answer at the link below. If I’ve misread it (it’s fairly dense), please let me know.

http://silver.n … lakes/Biom.html

Note here that visco-elastic behavior of ligaments is referred to as "reversible."

Thanks for a great thread!

TexRock, I’ve looked at the stretching devices several times and almost bought one. Maybe my frugal/sceptical Scottish nature held me back.

If you get a good result please PM me or post it because I would believe your personal experience before the makers claims. I agree with you, a solid 1/4” in 4 months would be a good result.

OK mbuc, look for the data point the first week in April.

As I mentioned before I was interested in seeing if I could measure any creep in the measurements and also to see if applied heat produced a measurable effect. So today I performed another little lab experiment.

After hanging 1.1kg for an hour in a cool room without any applied heat. I measured the extension of my penis in the way described in the first post. (I had to redraw my base line since it has been washed off since the first experiment, but that doesn’t really matter since we don’t need to compare the results between experiments. I just thought I would point it out in case anybody thought the readings in this experiment should match those in the first). Here’s what I measured

0 min 10.3 Cold measurement, rice sock applied immediately afterwards
5min 11.0 Warm
20min 11.2 Warm
30min 11.2 Warm - reheated ricesock
40min 11.3 Warm
50min 11.3 Warm
60min 11.2 Warm

As is clear from the results warming my penis up from being in a cool room using a rice sock had within 10min produced an extra elongation in the region of 10mm. After that I have to say that given the precision of the measuring it was impossible to detect any creep.