Explosive Stress - h3010v10096

DOE-HDBK-3010-94

4.0 Solids; Summary

E xp losive S tres s

The effect most closely resembling stresses in a given explosive-type accident scenario is

chosen. There is no need to assume cumulative releases for all effects cited.

Shock Effects. The value used for metal is considered adequate for use with

aggregates such as concrete as well. For detonations in or contiguous to solid

material, a respirable release of the mass of inert material equal to the

calculated TNT equivalent is assessed to be bounding.

Blast Effects. If aggregate is hurled with considerable velocity to impact, the

crush-impact correlation of Subsection 4.3.3 may be used to characterize the

response provided an impact velocity can be estimated. If the aggregate is not

hurled with significant velocity, no significant airborne release is postulated.

For effects on surface contamination, see Chapter 5.

Venting of Pressurized Gases over Solid. No significant airborne release is

postulated. For effects on surface contamination, see Chapter 5.

F ree-F all S p ill an d I mp action S tres s

The ARF x RF for the fragmentation of an aggregate solid that can undergo brittle fracture

can be estimated by the equation:

ARF x RF = (A)(P)(g)(h)

(4-1)

where:

ARF x RF = (Airborne Release Fraction) (Respirable Fraction)

empirical correlation, 2E-11 cm3 per g-cm2/s2

specimen density, g/cm3

gravitational acceleration, 980 cm/s2 at sea level

fall height, cm.

A erod yn am ic E n train m en t an d R esus pen sion

No significant airborne release is postulated for this accident configuration. For effects on

surface contamination, see Chapter 5.

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