Strength of Materials (Classic Reprint) - Hardcover

Inhaltsangabe

Excerpt from Strength of Materials

I. - whenever a force or a number of forces act on a rigid body the general effect is to put the body in what is called a state of stress. By this is meant that there is a tendency for one part of the body to move relatively to another as a result of the force or forces acting on the body. For example, a colliery winding rope is said to be in a state of stress because the force acting along the rope, due to the weight of the cage, tends to separate the lower portion of the rope from the upper.

As another example we may take the case of an engine crank shaft. Here again, the shaft is in a state of stress because the thrust along the connecting rod, acting at the crank pin, turns the shaft and tends to separate one section of the shaft from another by twisting the one relatively to the other.

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