Ability of an object o resist deformation As a measure of deflection for a positioning stage under load or of a leadscrew under thrust, stiffness is typically expressed in units of micro-inches per pound
The resistance to deformation of a structural member which can be measured by the ratio of the applied force to the corresponding displacement
excessive sternness; "severity of character"; "the harshness of his punishment was inhuman"; "the rigors of boot camp"
Stiffness is the resistance of a material or a structure to deformation It is not the same as strength The stiffness of a material is indicated by its "modulus of elasticity" - the measure of the elasticity of the atomic bonds within the material It is essential that calipers (and caliper mountings) be stiff Which is why metal matrix composite materials are used for racing calipers
The ratio of change in load to accompanying change in deformation of a member fabricated of a Hookean material and activated within its elastic limit; the slope of the load-versus-deformation plot beneath the elastic limit
Some systems of ODEs are difficult to solve using explicit methods The symptoms are that, in order to control the error, the step size must be kept smaller than the apparent rate of change of the variables If an adaptive step size is being used there may be more step rejections than expected
the property of moving with pain or difficulty; "he awoke with a painful stiffness in his neck"
the property of moving with pain or difficulty; "he awoke with a painful stiffness in his neck" the physical property of being inflexible and hard to bend
that property of a material concerned with how difficult it is to bend A stiff material is difficult to stretch or bend
The quality or state of being stiff; as, the stiffness of cloth or of paste; stiffness of manner; stiffness of character
A kart frame is designed to allow flexing, a very important property of the frame The stiffness of the frame is a measure for how easily it can be flexed Fast classes which race with sticky tires require a stiffer frame than slower classes which utilize harder tires Stiffness can be changed by the setting of the torsion bars and the thickness of the rear axle
The property of a conductor that causes it to resist permanent deformation by bending
a set of values which represent the rigidity or softness of a particular element Stiffness is determined by material type and geometry
Measure of resistance of plastics to bending It includes both plastic and elastic behavior, so it is an apparent value of elastic modulus rather than a true value (ASTM D-747)
may be quantified using the modulus of elasticity, E The higher the E value, the stiffer the wood and the lower the deformation under a given load A board rated at 2 0E is twice as stiff as one rated at 1 0E