On pressure and stress
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In the International System of Units, the concept and unit of pressure are defined; however, in our field of industrial measurement, it seems that only the concept of pressure exists, and its unit and definition are consistent with those of pressure in the International System of Units. Why is this? Please ask an expert to explain. Thank you!
I’m not an expert; I just play on some imitation versions. P This issue was raised back in the era when international SI standards were being promoted. It’s just a common term; everyone knows it refers to pressure. Just call it that; it’s already an informal name. It’s just like those foreign terms from the past – a bucket wasn’t called a bucket; it was called “wei de luo er”. All foreign terms were accepted, let alone those that are native to our own language. Oh, and turbines aren’t called turbines either; they have to be called “turbines”: lol
It is possible to distinguish the different names for a thing in various fields, such as the physical sciences and the chemical industry. It’s actually the same thing. Just as the name suggests, you are called Zhang San outside, but San Er at home.
In engineering, it is called pressure; the value in Mpa refers to the intensity of pressure. It is a common term used; in physics, pressure is measured in Newtons
A pressure gauge – it should actually be called a pressure intensity gauge. But oh, those old folks who like to mess around kept calling it a pressure gauge, and they even wrote it as something like industry standards or national standards. With such examples set by those older generations, it’s only natural that those who come after them end up distorting things... We need to respect standards and the authority of experts; ignoring physics is simply unacceptable. In short, among those old folks, there are few who truly possess real skills, while many just pretend to be experts. That’s all. :P
Take “jin, liang, qian” for example – they are easy to remember. They have been used since the beginning of measurement systems, and over 2,000 years, nothing went wrong with them. But in modern times, those old fools change things around: “jin” is turned into “kilogram” or “shi jin”. What’s the point of adding an extra character? It’s pure waste of energy and wasted eloquence! Failing to adapt to foreign styles, they also couldn’t make their sticks as thick and powerful as those used by foreigners; the older practitioners shook their weak, shriveled ‘bean sprouts’ and moved them in a zigzag pattern, trying to draw attention to themselves. Drink, drink, drink, :P. They show no respect for science nor for tradition; they insist on going against the people, forcing them to imitate their abnormal behaviors........ . . .
Quenching – how do you pronounce this word? Chromium steel – how do you pronounce ‘chromium’?
I’ve learned it; I really hadn’t noticed before
Pressure is a representation of the effect of force; what we need in industrial settings is precisely this effect of force. In actual pipelines, tanks, or containers, knowing the pressure is sufficient to achieve the desired outcome. Knowing only the force acting vertically on a surface at a particular point allows for further calculations using pressure. Pressure measurement instruments detect pressure, although in industrial contexts it is commonly referred to as force