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Unit conversions

This utility is provided to assist with unit conversion issues related to fracture mechanics quantities. Please note that there are limited error checks in place to trap data input errors. However, sensible input should yield useful output!

Changing any of the unit settings automatically updates the output value. If any of the input number fields are changed you should then also click anywhere in white space to have the output value updated.

Precision of output values

Set the required precision of the output fields with these two options:

Number of digits before decimal for results fields =

Number of digits after decimal for results fields =

Note: trailing zeros are not displayed in the results fields.

Conversion for stress intensity factors

Set both units and the input value on the left hand side.

Conversion for Paris / Walker equation "C" coefficient

Set all four units and the input values of C and n where da/dN=C(DK)n or da/dN=C[(DK)(1-R)(m-1)]n.

Input: da/dN units: deltaK units: C= n=
Output: da/dN units: deltaK units: C=  

Conversion for length units

Set both units and the input value on the left hand side.

=

Conversion for pressure / stress units

Set both units and the input value on the left hand side.

=

It is the responsibility of all users to verify conversions independently.

Version 2.2, 2 Sep 2011

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Unit conversion