The only reasons to do test cutting on flesh is to see if you have the ability to get through the medium (and just to be able to say that you did it). Tatami and clay are much better for giving you the feedback that you actually need. Remember, test cutting is just a form of calibration to let you know if you are messing up in your swing. You know what is useful for that?

A knowledgeable instructor who can see and hear when mistakes are being made in your cuts. Must of your practice for cutting should be done in the air, targets are just to see anything that you might not be noticing and to test yourself.Additionally, while silicone may be intended to feel like human skin, it is not designed to have the same compression, tensile strength, shearing resistance etc. Vis-a-vis human flesh. Neither is ballistic gel for that matter. To my knowledge, there isn't anything that is widely available to work the way that ballistic gel does for laceration aside from carcasses, and those have their own issues. The only reasons to do test cutting on flesh is to see if you have the ability to get through the mediumEveryone is so focused on cutting thru stuff.yet, you do not actually have to decapitate or dismember limbs to kill someone with a sword.

Let’s look at the context first and foremost. Judicial duelling with a preset of rules. As it seems closed helmets were a must. Now with closed helms you don’t really see small movements that your opponent is doing. And throwing the pommel aka End.

It's completely unnecessary.OP's proposal is actually useful in that you can get a better sense of what kind of damage could be inflicted on a person who is wearing armor if you utilize techniques designed to attack weak areas of the joints and what level of force is actually needed to get the minimal amount of necessary penetration to inflict lethal injuries. You cannot do any of those simulations using tatami, as you are neither able to arm a tatami mat with simulations of armor nor is tatami a homogenous material that replicates human muscle tissue, or even bone. It does not behave in any way like bone or muscle tissue does. Nor are there many targets on the human body that can be attacked from the upright angle that a tatami mat sits on a stand. The only one might be the neck, if you are making your strikes at a height that simulates a neck. 'Perfect cuts' do not matter, and generally do not even exist, in real combat conditions. Which is why none of the manuscripts we have talk about test cutting.Nah, that's because they're for sport fencing, not murdering people with swords.What matters is being able to strike vulnerable areas that lead to exsanguination, which the manuscripts do focus exclusively on teaching.The thing you consistently misunderstand here is that killing people is relatively easy - but that killing people in close combat tends not to stop them killing you as well.

If you care about Real Lethal Sharps, you need to recognise the difference between stopping someone from doing a thing and killing them at some point in the future when they might have also done lethal damage to you.Ballistic gel mimics human muscle tissue.No it doesn't. Ballistics gel provides a medium to compare high velocity projectiles in way which is consistent and gives clear feedback about the behaviour of the projectile on impact. Significant calibration testing has been done to relate those tests to the terminal effectiveness of a bullet on a human body, leading to the ability to establish thresholds for 'effectiveness' in terms of gel.That calibration process has not been performed for action of bladed weapons on ballistics gel, and therefore the same conclusions cannot be drawn from using it.

Nor can you directly translate a result in gel (e.g. 10' of penetration) into the same result on human flesh, which is an inconsistent set of muscles, intramuscular tissues and fat, bones, skin, etc.If you actually understood how ballistics gel is used for firearms testing, you'd understand why tatami is used for sword cutting tests.Silicon does as well, which is why sex toys use it.No it doesn't. Silicone in sex toys is used because it has an appropriate balance of firmness and texture, not because it's analogous to human flesh in resistance to cutting with sharp objects.

The Wikipedia article on ballistic gel ( ) )literally says,Ballistic gelatin closely simulates the density and viscosity of human and animal muscle tissue, and is used as a standardized medium for testing the terminal performance of firearms ammunition. While ballistic gelatin does not model the tensile strength of muscles or the structures of the body such as skin and bones, it works fairly well as an approximation of tissue and provides similar performance for most ballistics testing, however its usefulness as a model for very low velocity projectiles can be limited. Ballistic gelatin is used rather than actual muscle tissue due to the ability to carefully control the properties of the gelatin, which allows consistent and reliable comparison of terminal ballistics.The article has multiple citations and explains the standards.

You didn't even bother to Google.You really have no idea what you are dismissing Tea. You're trying so hard to defend porting Japanese sport test cutting into HEMA that you are literally making up your own definitions of things that are standard testing used by nearly every country and actually has a UN standard formula for testing purposes.No it doesn't. Silicone in sex toys is used because it has an appropriate balance of firmness and texture, not because it's analogues to human flesh in resistance to cutting with sharp objects.Tatami mats were used for Japanese test cutting practices because the material was abundant, since its original purpose was use as flooring and it was more portable than growing a forest of bamboo.See how easy it is to turn your argument around on you? At least silicone is actually used to try to mimic human tissue, which tatami mats never were intended for.Silicone is also used in the medical industry, especially with plastic surgery, because of how it is a close approximate to human tissue. Nobody uses tatami mats for anything remotely similar.Trying to dismiss the use of silicone and ballistic gel in favor of tatami because the former two aren't close enough to muscle tissue is a ridiculous argument to make when tatami simulates muscle tissue far worse since it has literally no properties in common with anything in the human body. The article has multiple citations and explains the standards. You didn't even bother to Google.The article says the same thing as Tea: gelatin is used because it can be standardized to a high degree, not because it simulates the actual tissue accurately.

You can map the effect of silicone to effect in the body because it behaves about the same in ballistic impacts. These happen at velocities that are at least an order of magnitude higher than hand-held weapons. There is no evidence at all that it accurately represents human body at the lower range of speed any better than bamboo mats. Both of them are probably quite distant.The terminal ballistics of bullets can be quite varied and complex, with the associated fragmentation and shock wave effects. This is why you need a media which resists approximately like bodies in all directions.

Sword wounds are not the same. We know what makes a good cut: edge alignment and edge velocity for example.

It pretty much works the same in all media; it's just that tatami mats provide feedback in a more useful way than most (and I say this having never cut one). If someone came up with an alternative that worked the same and was cheaper or less messy, it'd be adopted. Neither silicon nor gelatin fit that bill as far as I've seen.It's all part of the confusion between 'cutting training', which is training to make good cuts, and 'test cutting', which is looking at how good your cuts are. The material properties desirable for either are not necessarily the same.What you're apparently looking for is a media that could justify not making the effort to make good cuts but settle for good enough. That's fair, but you're going to have to do two things:. Prove that the media behaves the same for the relevant action in the relevant range of speed.

Determine what's good enough (which in historical arts is 'what people considered good enough, according to historical evidence')Neither of these are done, and ballistic gel and silicone certainly do not answer the first point. You can map the effect of silicone to effect in the body because it behaves about the same in ballistic impacts. These happen at velocities that are at least an order of magnitude higher than hand-held weapons.In particular, it's worth noting that the relevant characteristics for ballistic impact testing are mostly hydrodynamic - viscosity and density. It's not only that the velocity is completely different, but the modes of injury and type of interactions with a target are completely different for bladed weapons.

Aspects like tensile strength are far more important in the performance of cutting actions and completely missed by ballistics gel.This is easy to experimentally verify! Just try cutting or thrusting a block of gel with a blunt sword.

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