Achieving Tunica failure, an understanding of Tensile Strength and Elasticity

In this discussion I'm going to be referencing the following published article: The elasticity and the tensile strength of tunica albuginea of the corpora cavernosa. - PubMed - NCBI

So let's start with the understanding of what Tensile Strength and Elasticity means:

*Tensile strength* is a measurement of the force required to pull something such as rope, wire, or a structural beam to the point where it breaks. The tensile strength of a material is the maximum amount of tensile stress that it can take before failure, for example breaking.

*Elasticity* is the ability of an object or material to resume its normal shape after being stretched or compressed; stretchiness.

I hope is that the article above will bring an understanding of these two terms as it applies to the tunica. Given that the average failure occured around the 30 lbs to 39 lbs (40 to 50 newton meters^2). Would it be smarter for us to focus on hanging (working your way up to 30-39 lbs)? Furthermore, do men who can exceed the 30-39 lbs mark 'toughen up' as they get to the point where they can lift 30-39 lbs, further increasing their tensile strength to failure? Note that this article most likely did one test on each of these 5 cadavers. There obviously couldn't be a check for tissue toughening as well. The subjects were dead so thats self-explanatory.

The last part of the article says something interesting:

*When the tissue is overstretched, the elastic fibres are destroyed and the undulating arrangement disappears*

This implies that the more and more we exceed meet the conditions for failure, the less elastic our tunica becomes (gains cementing)

Great that research like this is done, must be very hard to perform research like this with it being so niche of a subject.

Not sure if to be happy or sad about this <

johnny-wang;685373 said:

Not sure if to be happy or sad about this <

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Why would you be sad?

*When the tissue is overstretched, the elastic fibres are destroyed and the undulating arrangement disappears*

This implies that the more and more we exceed meet the conditions for failure, the less elastic our tunica becomes (gains cementing)

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Double edged sword there, cementing gains and growth stagnation depending on your perspective. .

johnny-wang;685384 said:

Double edged sword there, cementing gains and growth stagnation depending on your perspective. .

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"*Elasticity* is the ability of an object or material to resume its normal shape after being stretched or compressed; stretchiness." - doesn't 100% mean that growth will stagnate. For example play dough is very malleable but doesn't have any elasticity. Although the tunica is in no way shape of form that elastic. I'd like to see a study done on the affect over tunica with a constant progressive overload of pressure.

I wrote on this years ago and there is no reason to allow this to discourage anyone. A large part of SRT is based on Tunica work as the main factor in priming the penis for expansion or elongation. The Tunica is dense indeed but in a physical sense this is good as when something has little elasticity is stretched it has the tendency to stay that way. So, when you successfully stretch the Tunica you will be making a permanent gain that will accept all other gains. Great article MoreThanLuck! It sheds much light on a subject that is imperative in PE.

doublelongdaddy;685395 said:

I wrote on this years ago and there is no reason to allow this to discourage anyone. A large part of SRT is based on Tunica work as the main factor in priming the penis for expansion or elongation. The Tunica is dense indeed but in a physical sense this is good as when something has little elasticity is stretched it has the tendency to stay that way. So, when you successfully stretch the Tunica you will be making a permanent gain that will accept all other gains. Great article MoreThanLuck! It sheds much light on a subject that is imperative in PE.

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Wouldn't the tunica get thinner over time? Or is it more of case of tear and repair like muscle?

lightlyfried;685421 said:

Wouldn't the tunica get thinner over time? Or is it more of case of tear and repair like muscle?

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No, it will not thin but it does break down and repair exactly like muscle as there is smooth muscle tissue present.

doublelongdaddy;685562 said:

No, it will not thin but it does break down and repair exactly like muscle as there is smooth muscle tissue present.

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Wouldn't that theoretically make gaining easier?

lightlyfried;685564 said:

Wouldn't that theoretically make gaining easier?

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Well, when we successfully stretch the Tunica there is no going back, it is a permanent enlargement because of how low the elasticity is. So it does make gains happen faster if you consistently stretch the Tunica.

The general concept here is solid, but dead tissue that cannot adapt to resistance over time cannot be compared to living tissue that can. From what I have seen with weight hanging, the penis adapts to each new level of resistance. The tissues seem to go through a cycle per se. New load (higher weight) is applied-&#12299;tissues go through a stretch, break down and then (hopefully) new elongation-&#12299;tissues no longer respond to same weight-&#12299;higher weight must be used, repeat. Of course, as time goes on, with heavier weights, the adaptation phase can take longer because the higher weights become harder to adapt to.

stillwantmore2;685730 said:

The general concept here is solid, but dead tissue that cannot adapt to resistance over time cannot be compared to living tissue that can. From what I have seen with weight hanging, the penis adapts to each new level of resistance. The tissues seem to go through a cycle per se. New load (higher weight) is applied-&#12299;tissues go through a stretch, break down and then (hopefully) new elongation-&#12299;tissues no longer respond to same weight-&#12299;higher weight must be used, repeat. Of course, as time goes on, with heavier weights, the adaptation phase can take longer because the higher weights become harder to adapt to.

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Yes, I have to agree that for the purposes of adaptation that one could not begin to compare a cadaver to a living being. It is a valid study that helps us determine the breaking point of that material (whether it be alive or dead). I would suspect that in a live person, the point at which we are able to exceed the tensile strength of our own penises would readily change. This I believe more than anything is the reason why we plateau. We are continually chasing the breaking point, which is a moving target due to the nature of the heal/break cycle. This is why intensity is important!

stillwantmore2;685730 said:

The general concept here is solid, but dead tissue that cannot adapt to resistance over time cannot be compared to living tissue that can. From what I have seen with weight hanging, the penis adapts to each new level of resistance. The tissues seem to go through a cycle per se. New load (higher weight) is applied-&#12299;tissues go through a stretch, break down and then (hopefully) new elongation-&#12299;tissues no longer respond to same weight-&#12299;higher weight must be used, repeat. Of course, as time goes on, with heavier weights, the adaptation phase can take longer because the higher weights become harder to adapt to.

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Very good point to pick up on. Lots of studies become flawed once you think of certain factors for example in this case the test subjects being dead.

You can also look at PE in two ways, in general there is much elasticity in the penis, this is why it takes time to enlarge...it is kind of like enlarging a rubber band, it will go back to it's normal size upon stretching. It would take much time in stretching to get that rubber band to be permanently larger. With the Tunica it is nothing like a rubber band, it is more like a t-shirt that once it is stretched out it has the tendency to stay that way because it lacks the elasticity necessary to go back to it's original size, hence permanency.

doublelongdaddy;685395 said:

I wrote on this years ago and there is no reason to allow this to discourage anyone. A large part of SRT is based on Tunica work as the main factor in priming the penis for expansion or elongation. The Tunica is dense indeed but in a physical sense this is good as when something has little elasticity is stretched it has the tendency to stay that way. So, when you successfully stretch the Tunica you will be making a permanent gain that will accept all other gains. Great article MoreThanLuck! It sheds much light on a subject that is imperative in PE.

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I guess this has so much to do with bundled stretches.

It's well-known that after a certain threshold of engorgement, the penis will deform and never return to normal. There are plenty cases of priapism related growth that permanently deformed the organ. Much like when an obese person loses weight, their skin still hangs loose unless they get surgery to remove the loose stretched out skin. The elasticity is destroyed

Xxxi;759298 said:

It's well-known that after a certain threshold of engorgement, the penis will deform and never return to normal. There are plenty cases of priapism related growth that permanently deformed the organ. Much like when an obese person loses weight, their skin still hangs loose unless they get surgery to remove the loose stretched out skin. The elasticity is destroyed

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Indeed. Once the Tunica has expanded and elongated there is no turning back. The Tunica has a density of around 5% which means once it is stretched it will not return to its normal size. As the penis bring more blood in to fill the space new Tunica gains will be made to continue the cycle.