Mechanics of Deformable Solids

Introduction to Mechanics of Deformable Solids:

The deformation is a kind of force applied to the solids in such a way that the solid get deformed under the action of this force. The solids have several properties like the elasticity etc. which depends on the solids nature and the deformation of the solid is depends on the strength of the elasticity of the solid by which the solid is deformed. The deforming force is the force when applied to a body then the shape of the object or body changes according to the amount of force applied.

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Mechanics of Deformable Solids


A deformable body is nothing but the physical body which deforms i.e. it changes its shape or its volume while an external force is being acted upon it by an external source. In the action of this force the relative position of the points present on the deformable body may changes according to the strength of the force. The bodies which are deformable are the opposite to that of a rigid body and they are defined by their elements which are presents inside the body.

In the structural geology and in metallurgy and in materials science the deformation mechanisms is generally refers to the various mechanisms which are there at the grain scales and these are responsible for the accommodation of the large plastic strains inside the rocks and metals and other materials. In mechanics the deformation is also known as the strain and it is the continuous change in the metric properties of any body when there is a difference is occurred between the initial and the final placement of the body. Thus we can say that the strain is the normalized measure of the deformation and it represents the displacement which the particles take with respect to the reference length.

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Expression for the deformable solids

Generally the deformation of the body is expressed as

X = F (X)

Where X is nothing but the reference position of the material points present inside the body.