Table 1 Introduction of related parameters.

From: Study on dynamic response of open web sandwich plate under near field explosive load

Symbol

Symbolic meaning

Symbol

Symbolic meaning

\(\sigma\)

The actual Von Mises equivalent stress

P

The actual pressure

\({\sigma }^{*}\)

The normalized equivalent stress

\({T}^{*}\)

The normalized maximum tensile hydrostatic pressure

\({\sigma }_{i}^{*}\)

The normalized intact equivalent stress

T

The maximum tensile pressure

\({\sigma }_{f}^{*}\)

The normalized fracture equivalent stress

\({\dot{\varepsilon }}^{*}\)

Dimensionless strain rate

\({\sigma }_{HEL}\)

The equivalent force at the Hugoniot elastic limit (HEL)

ε

The actual strain rate

\({P}^{*}\)

The normalized pressure

\({\varepsilon }_{0}\)

The reference strain rate