This erratum corrects errors in the originally published paper.

In Sec. 3.2, on page 041203-3, Eqs. (10g) and (10h) are corrected as follows: 
F1=[(λT12λT22)/α2](C1cos2θ+C2sin2θ)+(ζ2ζ1)[C1cos4θC2sin4θ]
(10g)
 
F2=[(λT12λT22)/α2](C1sin2θC2cos2θ)+(ζ2ζ1)[C1sin4θ+C2cos4θ]
(10h)

In the “Nomenclature” section, on page 041203-7, wg,t is corrected as follows:

ωg,t = specific gravity of tube

In Appendix A, on page 041203-8, left column, line 1, “For a practical HEX, (lT12+lT22)24a4<0, so the homogeneous” is corrected as follows:

For a practical HEX, (λT12+λT22)24α4<0, so the homogeneous