I need help with calculating the thickness of glass required for a tank 244x60x90cm in toughened glass.
Engineering help
- Thread starter Lew91
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Welcome!
I assume you mean tempered glass.
Tempered glass isn't necessarily stronger in all respects from regular (float / plate) glass. For example, it retains the same hardness and stiffness metrics as the plate glass from which it was modified.
http://www.breakglass.org/How-is-glass-made.html
Otoh, in some ways it can become 5x stronger.
https://www.pilkington.com/en-gb/uk...es/safety-security/pilkington-toughened-glass
I've never seen a calculator or website giving metrics for aquariums using tempered glass. There could be a lot of reasons for this, but mostly I think it's either because tempered glass isn't a good choice (although it's often used for 55 gallon bottoms) or because the calculations contain unknown variables that can't easily be determined.
One of the drawbacks of tempered glass is that it, for all intents and purposes, explodes when stress reaches a breaking point. There is prior to the explosion, no visible indicator that there is a problem. Plate glass can instead develop visible hairline fractures prior to a complete failure, thus giving the owner a chance to remove fish and water from the tank.
My calculator says 23.1 mm for that tank using plate glass. I'm certain tempered glass can be used that is thinner, but in no way have I seen methods that would calculate it.
Good luck on your efforts.
I assume you mean tempered glass.
Tempered glass isn't necessarily stronger in all respects from regular (float / plate) glass. For example, it retains the same hardness and stiffness metrics as the plate glass from which it was modified.
http://www.breakglass.org/How-is-glass-made.html
Otoh, in some ways it can become 5x stronger.
https://www.pilkington.com/en-gb/uk...es/safety-security/pilkington-toughened-glass
I've never seen a calculator or website giving metrics for aquariums using tempered glass. There could be a lot of reasons for this, but mostly I think it's either because tempered glass isn't a good choice (although it's often used for 55 gallon bottoms) or because the calculations contain unknown variables that can't easily be determined.
One of the drawbacks of tempered glass is that it, for all intents and purposes, explodes when stress reaches a breaking point. There is prior to the explosion, no visible indicator that there is a problem. Plate glass can instead develop visible hairline fractures prior to a complete failure, thus giving the owner a chance to remove fish and water from the tank.
My calculator says 23.1 mm for that tank using plate glass. I'm certain tempered glass can be used that is thinner, but in no way have I seen methods that would calculate it.
Good luck on your efforts.
Last edited:
https://www.monsterfishkeepers.com/...-the-glass-thickness-for-your-aquarium.50760/
I was looking for one of my books with the calculations in it, but a search popped this up.
I was looking for one of my books with the calculations in it, but a search popped this up.
