liquefaction.cycles_to_liquefaction()

Uniform cycles at csr needed to trigger liquefaction.

Usage

Source

liquefaction.cycles_to_liquefaction(
    csr,
    crr15,
    b=0.34,
    n_ref=N_REF_CYCLES,
    nl_max=1000000000.0,
)

Parameters

csr: array_like

Applied cyclic stress ratio.

crr15: array_like

Cyclic resistance ratio at n_ref cycles.

b: float = 0.34

Exponent of the cyclic strength curve.

n_ref: float = N_REF_CYCLES

Reference cycle count of crr15.

nl_max: float = 1000000000.0

Cap returned where the result is not finite or csr is not positive.

Returns

ndarray

n_ref * (crr15 / csr)**(1 / b), capped at nl_max.

References

Idriss and Boulanger (2008).