StressStrain_02_Body_Forces

StressStrain_02_Body_Forces - Section 3.2 3.2 Body Forces...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Section 3.2 Solid Mechanics Part I Kelly 37 3.2 Body Forces Surface forces act on surfaces. As discussed in the previous section, these are the forces which arise when bodies are in contact and which give rise to stress distributions. Surface forces also arise inside materials, acting on internal surfaces, Fig. 3.2.1a, as will be discussed in the following section. To complete the description of forces acting on real materials, one needs to deal with forces which act at a distance , for example the force of gravity. For these, one can define the body force , which acts on volume elements of material. Fig. 3.2.1b shows a sketch of a volume element subjected to a magnetic body force and a gravitational body force g F . Figure 3.2.1: forces acting on a body; (a) surface forces acting on surfaces, (b) body forces acting on a material volume element 3.2.1 Weight The most important body force is the force due to gravity, i.e. the weight force. In Chapter 2 there were examples involving the weight of components.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/20/2012 for the course ENGINEERIN 1 taught by Professor Staff during the Fall '11 term at Auckland.

Page1 / 3

StressStrain_02_Body_Forces - Section 3.2 3.2 Body Forces...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online