Is there a way to calculate how much pressure is being generated by a ligature?

[Walilamdzii]

So I know if I am applying 11lbs pressure?

 

[Lulzacruel]

You could try to calculate how much weight the object your tying the noose can hold.

You could also convert your weight in kg to newtons, then use the classic p= F/A equation to measure force divided by the area of the part of the neck covered by the noose.

Calculators for the second option exist online, the first one is on you to either test or find out the weight based on the sturdiness of the material in question

 

[Walilamdzii]

You could try to calculate how much weight the object your tying the noose can hold.

You could also convert your weight in kg to newtons, then use the classic p= F/A equation to measure force divided by the area of the part of the neck covered by the noose.

Calculators for the second option exist online, the first one is on you to either test or find out the weight based on the sturdiness of the material in question

The problem I'm having with the equation is having two unknown variables... I could work out the area but I don't see a way of working out the other two variables... I wish I was better a Physics.

I want to attempt self strangulation with cable ties so I'm guessing the more of them I use the more pressure generated.

 

[Lulzacruel]

The problem I'm having with the equation is having two unknown variables... I could work out the area but I don't see a way of working out the other two variables... I wish I was better a Physics.

I want to attempt self strangulation with cable ties so I'm guessing the more of them I use the more pressure generated.

If you are doing a garrote type, then compression strength is the real question. and cable ties can obviously be squished without breaking, so then you wont need to do the calculation if all they need is good compressive strength.

If you are actually hanging and i misunderstood you, then use a "weight to newton" calculator online, then input the newtons into the F in the F/A equation. Then, measure the area that the cable ties will take up on your neck. Put that into the calculator with the respective measurement (inches, mm, whatever you like) you will have your result.

As an example, a 100 kg human with 10 mm squared area of neck (assuming the noose can keep up the body without breaking) will have 9 MPa of pressure, more than enough to squish your carotid and jugular to make you black out.

FYI, the calculation doesn't really matter as long as the pressure on your veins is more than your blood pressure. As long as it can squish your veins, you will be fine.

Just experiment.

 

[Walilamdzii]

@Lulzacruel I don't really have any space to experiment because I'm not left alone, and some articles I read mentioned needing to use a tensioning tool to get the correct pressure, but these are really quite expensive. I'll try to experiment anyway.

I have thought about that too so it might some in handy.

Some people have commented that neck anatomy is variable, which worries me in case it's hard to occlude my jugulars/carotids. I guess the more pressure, the quicker the blackout. SI is a bit problematic with this method, as with every method, but so far I've been worried with practices that I will tighten it too much to cut the tie off, be discovered and taken to hospital so I am being very cautious.

 

[Lulzacruel]

@Lulzacruel I don't really have any space to experiment because I'm not left alone, and some articles I read mentioned needing to use a tensioning tool to get the correct pressure, but these are really quite expensive. I'll try to experiment anyway.

I have thought about that too so it might some in handy.

Some people have commented that neck anatomy is variable, which worries me in case it's hard to occlude my jugulars/carotids. I guess the more pressure, the quicker the blackout. SI is a bit problematic with this method, as with every method, but so far I've been worried with practices that I will tighten it too much to cut the tie off, be discovered and taken to hospital so I am being very cautious.

be as cautious as you want, thats the whole point of experimenting!

yes, neck anatomy is a bit variable, maybe if you are chubby the fat inbetseen the skin and veins will cushion the veins a little, maybe the veins are little slanted. the main thing that medical professionals mean by variable anatomy is the difference between how deep the structures are inside your body between people and the location might be a little to the left or right

as i said as long as you can put more pressure on the veins than the blood pressure inside your body you will have succeded.

 

[Walilamdzii]

be as cautious as you want, thats the whole point of experimenting!

yes, neck anatomy is a bit variable, maybe if you are chubby the fat inbetseen the skin and veins will cushion the veins a little, maybe the veins are little slanted. the main thing that medical professionals mean by variable anatomy is the difference between how deep the structures are inside your body between people and the location might be a little to the left or right

as i said as long as you can put more pressure on the veins than the blood pressure inside your body you will have succeded.

Well I have low BP so hopefully that helps!


@Lulzacruel I'm trying to imagine what 11lbs pressure actually looks like, so I googled things that weigh that much... it said a pumpkin... so those are quite heavy, and in my imagination I can't really link it to the idea of ligatures.