The psi, or pounds per square inch, is a unit of pressure (P) using the foot-pound-second (FPS) system. To calculate psi, divide the force applied (F) with the area (A). Measure the force applied. Use an instrument such as a force gauge, spring scale or strain gauge. Make sure that the unit is in pounds. Convert the value if necessary.
Contact Area. This is the contact surface area which the force is directly applied to, and can be specified in any area measurement unit available from the pull down selection choices. Generated Pressure. This is the resulting pressure generated by the specified force and area and is calculated by dividing the force by the area.
Pressure and force are related, and so you can calculate one if you know the other by using the physics equation, P = F/A. Because pressure is force divided by area, its meter-kilogram-second (MKS) units are newtons per square meter, or N/m2. In the foot-pound-second (FPS) system, the units are pounds per square inch, or psi.
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Pounds per square inch (psi) is a unit of pressure most commonly associated with tire pressure for an automobile or bike tire. However, because pressure gauges are attached to most tire pumps, there's often very little need to calculate psi in this context.
Pressure for given weight and surface area. This online calculator computes pressure in gravity field for given weight and surface area. Results are shown in different pressure units.
Measure the contact area where the force is being applied. For a round area, square the radius and multiply by pi. As an example, if the elephant's foot measures 1 foot in diameter, divide by 2 to calculate the radius of 0.5.
Therefore, if flow doubles, pressure has usually had to quadruple to affect the change in a flowing system. Manufacturers of different types of piping publish flow-pressure data about their products. You can use this data to calculate GPM from pounds per square inch (PSI).
I understand that, what I am trying to understand is, if you have for instance 1 psi in a 12" cube, is the outward exerted force less than that of a 36" cube with 1 psi? It seems that the larger area would have less force than the smaller area at the same pressurization.
road-transport-technology.org/Proceedings/2 - ISHVWD/Vol 1/TRUCK...
95 psi 100 psi 100 psi 105 psi Figure 14 Average Vertical contact Pressure The second of the two tire factors affecting contact pressure is tire design. Three tire parameters fall within this category: tire shape, tread pattern, and tire size. With respect to tire shape, the area of interest is the crown