Below are some examples of surface and body forces.ĭistributed loads are represented as a field of vectors. Body forces are forces where the point of application is a volume (the force is exerted on all molecules throughout the body).
Surface forces are distributed forces where the point of application is an area (a surface on the body). Though distributed loads are more difficult to analyze than point forces, distributed loads are quite common in real world systems so it is important to understand how to model them.ĭistributed loads can be broken down into surface forces and body forces.
This means that the “point of application” is not really a point at all. A distributed load is any force where the point of application of the force is an area or a volume.
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