Skip to main content

Elasticity, Stress and Strain?



Elasticity is a mechanical property of matter. For example, we have a 10-meter rubber piece. Now after we pulled the piece of rubber, the rubber will be lost and its original length and width. Suppose now the length of the rubber has reached 30 meters. Now we have left the rubber and if the rubber comes back to its old state then this property is called elasticity. Due to elasticity, two things are produced that is strain and stress
Here the original length of the rubber was 10 meters and after applying a force it turned to 30 meters. So how much rubber has been deformed   20 meters. If we calculate a change in one meter then answer will be 2. So what is this 2? this 2 is ratio is every unit change and this ratio is called strain.
Now There is a question here that when we are pulling this rubber, then it is going to be deform. Because we are pulling it but when we are leaving it, then it is going back to its original state So the question here is how did it come back, we just apply force to deform it, not to send back. So who imposed this force? This force was imposed by Rubber's molecules. yes and this force is called stress. And this force is calculated by force per unit area. The force which we apply and rubber area.
Things to remember
1.       Every material elastic in nature
2.       The strain is unitless because the strain is the ratio
3.       steel is more elastic than rubber

4.       we can calculate strain in every direction .it may length, width height and volume 

Comments

Popular posts from this blog

Why 1 dollar is not equal to 1 rupee (1 डॉलर 1 रुपये के बराबर क्यों नहीं होता है?)

दोस्तों इंडियन होने के नाते आपकी भी मेरी तरह एक Wish होगी कि काश एक डॉलर एक रुपए के बराबर हो जाए क्योंकि सच में अगर ऐसा होता है तो चीजें हमारे लिए बहुत सस्ती हो जाएंगी जैसे ऐसे 700 rs  का i Phone और बहुत सी ब्रांडेड चीजें जो बहुत-बहुत सस्ती लेकिन ऐसा क्यों नहीं होता है कि $1 एक रुपए के बराबर हो जाए तो चलिए इसे देखते हैं इसके कुछ प्रमुख कारण हैं   व्यापार :- दोस्तों जैसे हमें पता है कि भारत एक विकसित नहीं बल्कि विकासशील देश है जो विकसित होने की तरफ हैं लेकिन विकसित नहीं है तो हमें बहुत सी चीजों के लिए दूसरे देशों पर निर्भर रहना पड़ता है| और हम दूसरे देशों के साथ व्यापार करते हैं जैसे कि चीनी चाय और बहुत सारी ऐसी चीज है जो हम दूसरे देशों के साथ व्यापार करते हैं अब अगर एक रुपए की कीमत $1 के बराबर कर देते हैं तो जो भी देश हम से खरीदते हैं तो उनके लिए सामान बहुत महंगा हो जाएगा जैसे की चाय का व्यापार भारत और श्रीलंका दोनों करते हैं उदाहरण के लिए अगर 1 किलो चाय   की कीमत 100 रुपए है तो जो दूसरे देश चाय खरीदते हैं उसे भारत से चाय खरीदने के लिए $100 देने पड़ेंगे क्यों...

What is CC of the Engine ??

Friends, 90 out of 100 people can tell how Much CC are their bikes? But only 5 or 10% of them can tell what a CC means. Some people call it is Weight, some people say power. So let's know today that what is CC of engine?     If you were calculate volume in mathematics in your childhood, then you would remember what was the unit of Volume? The unit of volume is cm3, mm3, m3 means that the cube of the unit means the cubic centimeter. Now we know that the Cubic Centimeter is the unit of Volume. Now we see that what CC is in the engine, we all know that a cylinder is inserted inside the engine, which mixes gasoline and air. There are two volumes in the cylinder, Total Volume and Swift Volume .Swift Volume is the Volume in which the Piston is travels upwards or downwards. And in Swift Volume the engine makes Actual Power. So If the CC is given in the engine 110cc, 120cc, 150cc, 250cc, etc it means the Swift Volume of that particular engine is 110 cm3, 120 cm3, 150 c...

Rupee !! History Of Rupee????

Rupa is a Sanskrit word. Which means that the silver coin, which we make a knock-on peat.                   The bar-tar system was run in Indian Valley Civilization. Bar-tar system means to take another thing in exchange for anything. As if we have more rice and we also need wheat, then we can take some wheat for the second instead of some of our rice.                        But in the year 1540, the Sher Shah launched Rupai for the first time. In which 1 rupee means 1 silver coin which was equal to 178 wheat grains But after the first World War, silver and gold prices increased, then the British government denominated the Indian rupee. In which now 1 rupee means 16 aana, which was equal to 64 paise. all these copper were made of nickel. But after 1961 only the rupee was mad...