Abstract
A wire model can express a beam component and a flexible joint, and can express a Rahmem construction. The deformation and rigidity of a box structure are decided by a shear deformation and shear rigidity of the surface which constitutes a box. If the surfaces of a box structure are expressed by a Rahmem structure, the box structure can be expressed by the wire model. Through the wire model of a car body structure which can be handled with fingers, we can feel the deformation and rigidity, and understand easily the deformation mode and the mechanism producing torsional rigidity of a car body structure, and we can understand the point which should be careful in a car body design.
