The virtual work method, also referred to as the method of virtual force or unit-load method, uses the law of conservation of energy to obtain the deflection and slope at a point in a structure.

The principle of virtual work for deformable bodies says that the external virtual work applied to a structure must equal the internal virtual work that is caused within the structure:

Method of Virtual Work Beam Deflection Example Steven Vukazich San Jose State University Summary of Procedure for Finding Bending Deformation Using Virtual Work Modulus of Elasticity = E y …

In mechanics, virtual work arises in the application of the principle of least action to the study of forces and movement of a mechanical system. The work of a force acting on a particle as it moves along a …

The principle of virtual work states that for any compatible virtual displacement field imposed on the body in its state of equilibrium, the total internal virtual work is equal to the total external virtual work.

Virtual Work provides a basis upon which vectorial mechanics (i.e. Newton’s laws) can be linked to the energy methods (i.e. Lagrangian methods) which are the basis for finite element analysis and …

When the principle of virtual work is used to calculate the displacement D∗, at a coordinate “*”, the system of external forces, { ̄F } is chosen so as to consist only of a single unit force at coordinate “*”:

The method is particularly useful in determining the position of equilibrium of a system under known loads (This is in contrast to determining the forces acting on a body whose equilibrium position is …

1.3 Principle of virtual work ystem of interest each sum to zero. Sommerfeld invokes an older method of handling such problems c lled the principle of virtual work. This method has the advantage that …

Truss – Virtual Work Virtual work is a procedure for computing a single deflection component at any point on a structure. To compute a component of deflection using the virtual work method, the …