Rigidity definition of Rigidity in the Free Online Encyclopedia.

rigidity [ri′jid·əd·ē]

(astrophysics)

The ratio of the momentum of a cosmic-ray particle to its electric charge, in units of the electron charge.

(mechanics)

The quality or state of resisting change in form.

rigidity

That property of a material which resists a change in its physical shape.

Rigidity

the capability of a body or structure to resist deformation; a physicogeometric characteristic of the cross section of a structural element. In the case of simple deformations within the limits of Hooke’s law, rigidity is determined numerically as the product of the modulus of elasticity E (on elongation-contraction and on flexure) or G (on shear and torsion) and some geometric characteristic of the element cross section:EF on elongation-compression, El on flexure, GF on shear, and so on, where F is the cross section area, and I is the axial moment of inertia. The concept of rigidity is being widely used in the solution of problems concerning the strength of materials.

Rigidity

in physiology, a functional state of the skeletal muscles, characterized by a marked increase in their tone and in their resistance to deformation. Muscle rigidity results from changes in the character of the neural influences that the central and peripheral nervous systems continuously exert to the muscles. An example of rigidity is decerebrate rigidity.

In man, injuries and disturbances of the central nervous system and pathological irritation of the peripheral nerves give rise to various manifestations of muscle rigidity. Thus, poisoning by certain toxins, diseases of the nervous system, and hypnosis may cause a state of plastic tone, characterized by a waxlike condition of the muscles. In this state the extremities may easily be placed in any position and can remain thus, unchanged, for a prolonged period. Plastic tone characterizes a state of the nervous system called catalepsy, or plastic rigidity.

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No references found	As to Henry C-, the next in age and wisdom of our band, he had broken loose from the unyielding rigidity of his family, solidly rooted, if I remember rightly, in a well-to-do London suburb. The Mirror of the Sea by Conrad, Joseph View in context They were shown into the drawing-room; it was filled with massive, ugly furniture, and the chairs of the suite were placed round the walls with a forbidding rigidity. Of Human Bondage by Maugham, W. Somerset View in context But his whole face suddenly bore the solemn rigidity of the dead, and his expression did not change during the whole time of the drive home. Anna Karenina by Tolstoy, Leo View in context	righting moment rightist Rights and Duties of the Citizens of the USSR Rights, Freedoms, and Duties of the Citizens of the USSR rightsizing Rigi rigid arch rigid bent rigid body rigid concrete pavement rigid connection rigid copper coaxial line rigid coupling rigid dampproof course rigid disk rigid foam rigid frame rigid insulation rigid insulation board rigid joint rigid lock rigid metal conduit rigid pavement rigid resin rigid-body dynamics Rigidity rigidity modulus rigidized rigidizer Rigil Kent Rigil Kentaurus riglet Rigoletto rigor rigor mortis Rigorism rigorous rigour Rigsdag Rigveda Rihand Rihani, Amin Al- RIHANS Riihimäki Riis, Jacob Riis, Jacob A Riis, Jacob August Riiser-Larsen Sea Riiser-Larsen, Hjalmar Riismann, August Rijal, Nagendra Prashad	Rigid truck Rigid truck Rigid truck Rigid Wall Rigid Wall Shelter Rigid-Atom Approximation Rigid-body dynamics Rigid-body kinematics rigid-leaf poison rigid-leaf poison rigid-leaf poison rigid-leaf poison Rigid-Lock Stack Down Rigid-Muffin-Tin Approximation rigidification rigidified rigidified rigidified rigidifies rigidifies rigidifies rigidify rigidify rigidify rigidifying rigidifying rigidifying rigidities rigidities rigidities Rigidity Rigidity in space Rigidity in space rigidity modulus rigidity reflex rigidity reflex rigidity reflex Rigidity theorem Rigidity theorem Rigidity theorem Rigidity theorem for analytic functions Rigidity theory Rigidity theory Rigidity theory rigidized rigidizer rigidly rigidly rigidly rigidness rigidness rigidness rigids rigids rigids Rigidulous rigidus rigidus RIGIE Rigil Rigil Kent

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As to Henry C-, the next in age and wisdom of our band, he had broken loose from the unyielding rigidity of his family, solidly rooted, if I remember rightly, in a well-to-do London suburb.

The Mirror of the Sea by Conrad, Joseph View in context

They were shown into the drawing-room; it was filled with massive, ugly furniture, and the chairs of the suite were placed round the walls with a forbidding rigidity.

Of Human Bondage by Maugham, W. Somerset View in context

But his whole face suddenly bore the solemn rigidity of the dead, and his expression did not change during the whole time of the drive home.

Anna Karenina by Tolstoy, Leo View in context

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Rigidity