The first limit is oxygen toxicity.
Partial pressures of oxygen more than 1 atm are toxic
so breathing air, the limit is 1 atm/20% O2 = 5 atm = 75 psi = water depth of ~ 150 feet
However all you have to do is reduce the concentration of oxygen in whatever gas you are breathing.
The next limit is nitrogen narcosis.
Under high pressure nitrogen acts like nitrous oxide.
Too high a pressure and it will stop your breathing.
Partial pressures more than 10 atm are lethal.
So the limit would be ~ 10 atm = 150 psi = water depth of ~ 300 feet
However all you have to do is reduce the concentration of nitrogen in whatever gas you are breathing
(for example replace it with helium).
Helium-oxygen mixtures have been used to ~1000 foot depth.
(interesting side note, too little nitrogen is also annoying, causes headache and neurological problems
in short we require a bit of nitrogen narcosis in our everyday lives, so a small amount of nitrogen
in the mix significantly improves comfort)
The human body is essentially water and almost incompressible.
In theory helium-oxygen-nitrogen mixtures can be used to the deepest depths of the ocean (~30,000 feet = 1000 atm = 15000 psi).
In practice, mildly annoying things happen at depths > 3000 feet (100 atm, 1500 psi).
1) evaporation slows down, in particular the saliva does not evaporate from your lips and you begin to drool a lot.
2) exceeding 1000 atm, air exceeds the density of water and it starts to become a bit of effort to breath. A practical upper limit
due to air density in the lungs is about 2000 atm = 30,000 psi = 60,000 feet water depth (deeper than any ocean on earth).
A fix for this would be a heart/lung machine to inject oxygen/nitrogen directly into the bloodstream.
PS, a practical application of this would be to have the person connected to the heart/lung machine floating in water.
In this condition they could withstand an incredible 1,000 g! (the upper limit due to sedimentation of cellular organelles),
A final limit is the point in which barochemistry (changing reaction rates due to pressure) become important.
The "chemical energy density" of matter is an equivalent pressure of about 1.5 million atmospheres.
Pressures from 1-10% of this would be expected to alter metabolism significantly. So the absolute upper limit
is somewhere between 15,000 and 150,000 atm.
The femur, the strongest bone in the human body, can withstand compressive forces of around 1,700 to 2,500 pounds-force per square inch (psi) before breaking.
Urine exits the body at varying pressures, typically ranging from 8 to 20 pounds per square inch (psi). This pressure is influenced by factors such as the bladder's contractions and the individual's muscle control.
A human is under an average pressure of about 14.7 pounds per square inch (psi) at sea level on Earth due to the weight of the atmosphere pressing down on them. This pressure decreases at higher altitudes and increases underwater.
The bite force psi of a wolfdog is typically around 400 pounds per square inch (psi).
A wolf dog psi hybrid possesses a combination of traits from both wolves and domestic dogs, making them highly intelligent, loyal, and adaptable animals. They have strong instincts, keen senses, and excellent problem-solving skills. Additionally, they are known for their strong pack mentality and ability to form deep bonds with their human companions.
The femur, the strongest bone in the human body, can withstand compressive forces of around 1,700 to 2,500 pounds-force per square inch (psi) before breaking.
The atmospheric pressure at sea level is 14.7 pounds per square inch (14.7 psi)
The maximum amount of pressure a human body can withstand varies depending on the circumstances and individual factors. In general, most people can tolerate around 1 to 2 pounds per square inch (psi) of pressure changes without adverse effects. However, exposure to higher pressures, such as those experienced in scuba diving or during certain medical treatments, can be dangerous and should be carefully monitored by trained professionals.
Steel can withstand a maximum pressure of around 30,000 pounds per square inch (psi).
Rockets can withstand high pressures during launch, typically around 500-1000 psi for the fuel tanks and up to several thousand psi for the combustion chamber. The exact pressure tolerance depends on the design and materials used in the rocket's construction.
Concrete 3000 psi means that the concrete has a compressive strength of 3000 pounds per square inch (psi). This measurement indicates how much pressure the concrete can withstand before cracking or breaking. A higher psi value generally means stronger and more durable concrete.
Pots are not usually made to withstand large pressures. In any case, it would depend on the thickness of the pot.
JB Weld can typically withstand pressures up to 3,960 psi before it fails.
To withstand an internal force of 1200 psi, the acrylic would need to be at least 1 inch thick. Acrylic typically has a tensile strength of around 10,000 psi, so a 1-inch thickness would comfortably handle the 1200 psi force.
Iron can withstand pressures of around 60,000 to 75,000 pounds per square inch (psi) before it starts to deform or fail. This can vary depending on factors like the type of iron, its structure, and temperature.
Every one feet the pressure raises by 24.9 psi.
780 psi per square cm