Date of Award


Document Type


Degree Name

Master of Science (MS)


Civil Engineering


This thesis presents methods for determining yield line patterns of isotropic plates that are uniform in thickness and subjected to a uniform loading. The importance of these methods arises from the mathematical complications involved in finding yield line patterns by the present procedures .

Since yielding patterns are dependent on the shape of a plate as well as the support conditions, the methods recommended here will be based on assuming a yielding pattern and checking for its correctness. The use of the computer can provide many trial solutions in a very short time. The correct pattern will be that which gives the same value of the yielding moment along all yield lines.

The benefit of the recommended methods is that no mathematical complications are involved and a very elementary knowledge of computer programming is sufficient.