Difference between Stiffness and Harshness

STIFFNESS vs HARSHNESS: NOUN

The physical property of being inflexible and hard to bend
The inelegance of someone stiff and unrelaxed (as by embarrassment)
Excessive sternness
The state or character of being stiff, in any sense.
Specifically, the power or ability of a vessel to oppose great resistance to inclination from the upright from the pressure of wind on the sails or other external forces.
The quality or state of being stiff
Rigidity or a measure of rigidity
Inflexibility or a measure of inflexibility
The property of moving with pain or difficulty
Firm resoluteness in purpose or opinion or action

The roughness of a substance that causes abrasions
Harsh or rough to the ear
Excessive sternness
The quality of being cruel and causing tension or annoyance
The quality or condition of being harsh.
Synonyms Asperity, etc. (see acrimony); austerity, churlishness, rigor, roughness, bluntness, hardness, sternness, cruelty, rudeness; discordance, dissonance.
The quality or state of being harsh.
The quality of being harsh.
The quality of being unpleasant (harsh or rough or grating) to the senses

Rigor, Stickiness, Steepness, Rigid, Strength, Roughness, Rigidity, Tightness, Gracelessness, Inclemency, Severity, Clumsiness, Awkwardness, Harshness, Hardness

Toughness, Stringency, Hardship, Rudeness, Strictness, Brutality, Stiffness, Inclemency, Severity, Hardness, Cruelty, Scratchiness, Abrasiveness, Cruelness, Roughness

Resistance, Inflexible, Formality, Rigor, Stickiness, Steepness, Rigid, Strength, Roughness, Rigidity, Tightness, Inclemency, Clumsiness, Awkwardness, Hardness

Lightness, Oppressiveness, Bleakness, Rigour, Difficulty, Thoroughness, Rigor, Toughness, Hardship, Brutality, Stiffness, Inclemency, Hardness, Scratchiness, Roughness

Instability can also occur when there is very little stiffness to resist deflection, as opposed to zero stiffness.
The remaining text deals with the analysis of framed structures using flexibility, stiffness and direct stiffness methods.
The effective stiffness of the concrete in these cases is less than its elastic stiffness.
Stiffness is the inverse of flexibility; greater stiffness results in less flexibility.
Element stiffness matrix formulation and assembly to global stiffness matrix for rigid jointed frame.
For bending tests, it is important to distinguish between intrinsic stiffness and extrinsic stiffness of the bone.
The contribution of floor systems to stiffness should be taken into account in evaluating girder stiffness.
Doctors also need to know where people feel stiffness and how long stiffness lasts.
ECM stiffness was the cause for elevated muscle stiffness measures.
To establish the stiffness value of each frameset, we measure two different variables: frame stiffness and pedaling stiffness.