Head Injury Criteria in Radioss.

Generally, HIC values above 1000 are very risky.

Please refer the Altair HyperWorks Resources Library where you can find videos, tutorials and technical papers on crash and head impact analysis.

Rahul,

The standard equation for calculating head injury criteria (HIC) is based on the acceleration of the head form and the time interval of the impact.  If you Google 'Head Injury Criterion' you can find a number of references for it.

See also this posting for more info:

Thank you very much George.

Thank you Kevin...