Our New Blog www.myhsebnotes.com We have transferred all the Notes from here. Please visit that.
Download HSEB Notes of Physics | Mechanical Properties of Solids | Extra Reference | E-Book | Class 11
HSEB Notes
Home » , , , , » Download HSEB Notes of Physics | Mechanical Properties of Solids | Extra Reference | E-Book | Class 11

Posted By on Saturday, March 9, 2013 | 10:34 PM

PHYSICS | EXTRA REFERENCE | E-BOOK
DOWNLOAD HSEB NOTES ON MECHANICAL PROPERTIES SOLIDS
CLASS : 11
File Type : PDF
Size : 1205 KB
Download

Click on "Download" to start downloading file

INTRODUCTION
we studied the rotation of the bodies and then realized that the motion of a body depends on how mass is distributed within the body. We restricted ourselves to simpler situations of rigid bodies. A rigid body generally means a hard solid object having a definite shape and size. But in reality, bodies can be stretched, compressed and bent. Even the appreciably rigid steel bar can be deformed when a
sufficiently large external force is applied on it. This means that solid bodies are not perfectly rigid. A solid has definite shape and size. In order to change (or deform) the shape or size of a body, a force is required. If you stretch a helical spring by gently pulling its ends, the length of the spring increases slightly. When you leave the ends of the spring, it regains its original size and shape. The property of a body, by virtue of which it tends to regain its original size and shape when the applied force is removed, is known as elasticity and the deformation caused is known as elastic deformation. However, if you apply force to a lump of putty or mud, they have no gross tendency to regain their previous shape, and they get permanently deformed. Such substances are called plastic and this property is called plasticity. Putty and mud are close to ideal plastics. The elastic behavior of materials plays an important role in engineering design. For example, while designing a building, knowledge of elastic properties of materials like steel, concrete etc. is essential. The same is true in the design of bridges, automobiles, rope ways etc. One could also ask Can we design an aeroplane which is very light but sufficiently strong? Can we design an artificial limb which is lighter but stronger? Why does a railway track have a particular shape like I? Why is glass brittle while brass is not? Answers to such questions begin with the study of how relatively simple kinds of loads or forces act to deform different solids bodies.

Download the file to read more..

Don't forget to download :
Don't Miss our Stuff !! Get Notes Daily vai Email
Don't miss our post. Get Notes daily direct to your Email Inbox. Enter your Email Address and submit to Subscribe.
Enter your Email Address:

0 comments:

Post a Comment

Don't forget to leave your comment.

Do you have downloaded our Toolbar for your Browser ? If not then download it and get Notes eaisly. Click here to Download And integrate with your Browser.