Column Buckling


Objective
To investigate the concept of column buckling.

Definition and Theory
Buckling is defined as an instance of lateral bending or bowing of the column shape due to a compressive load on a column. There are three basic types of column failures. One, a compressive material failure, i.e., the material cracks or crumbles. This type of column failure usually happens to columns that are very short and fat. Two, a buckling failure, i.e., lateral bending or bowing of the column shape. This type of column failure usually happens to columns that are very long and skinny. Three, a combination of both compressive and buckling failures. This type of column failure occurs when length and width of a column is in between a short and fat and long and skinny column. (P) is the compressive load that causes buckling to occur. Buckling for this experiment is defined when the lateral change from a straight line to the curve is equal to the ratio (D) is equal to (L) / (H) = 24; record the load at this point. We are using this ratio to so we can compare column buckling of various lengths. As the length decreases, the horizontal distance (H) decreases.

Procedure

Laboratory Worksheet