Whereas the area within a hysteresis loop represents energy dissipated to heat .
Is an extensive quantity with units of energy , the hysteresivity represents the fraction of the elastic energy that is lost to heat , and is an intensive property that is dimensionless .
Whereas the area within a hysteresis loop represents energy dissipated to heat and is an extensive quantity with units of energy , the hysteresivity represents the fraction of the elastic energy that is lost to heat , and is an intensive property that is dimensionless .