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Subsubsection 4.6.2.3: Weibull Up Subsection 4.6.2: Cumulative Distribution Functions Subsubsection 4.6.2.5: Step

#### 4.6.2.4 Quintic Polynomial

The material type for a quintic polynomial c.d.f. is “CDF quintic”. The following material parameters must be defined:
 Parameter (same units as , [] Parameter (same units as , [ ] Maximum allowable damage (optional, default is 1) [ ]
For this material the c.d.f. is given by Note that which shows that is the value of at which half of the bonds break. The range regulates the rate at which damage increases with increasing , with a narrower range producing a more rapid increase.
Example:
<damage type="CDF quintic">
<mumin>0.3</mumin>
<mumax>1.7</mumax>
<Dmax>1</Dmax>
</damage>


Subsubsection 4.6.2.3: Weibull Up Subsection 4.6.2: Cumulative Distribution Functions Subsubsection 4.6.2.5: Step