on an eigenstructure analysis. This analysis also provides a
mathematical framework that can be easily extended to perform
spatially multi-dimensional computations using dimensional
splitting techniques. Numerically predicted structures
and compaction wave end states are compared with those
given by the steady theory; excellent agreement exists. Second,
predictions for the time-dependent interaction of these
steady, continuous compaction wave structures with material
of different initial bulk porosity are given to highlight the
influence of strain history on the dynamic system response.
To our knowledge, this problem has not been previously addressed.
The analysis provides insight into the limiting form
solutions of the shear enhanced compaction model.
An outline of the article is as follows. The hydrodynamic
compaction model and its mathematical eigenstructure are
described in Sect. 2; the eigenstructure analysis is important
because it forms the basis of the numerical method summarized
in Sect. 3. Numerical predictions are then given and
discussed in Sect. 4. Lastly, we give some conclusions and
suggestions for future work in Sect. 5.