The pore pressures generated in soils subjected to cyclic loadings have been shown to be proportional to the energy dissipated in the soil during that loading. Both stress-controlled and strain-controlled cyclic triaxial tests can be used to develop parameters for energy-based pore pressure models; however, the patterns of their energy dissipation into the soil are quite different. In this study, the two patterns of energy-dissipation associated with stress-controlled and strain-controlled cyclic triaxial tests were developed and then confirmed using sixteen stress-controlled and sixteen strain-controlled cyclic triaxial tests. Additionally, it was shown that the patterns of pore-pressure generation for the two tests, which differ greatly when evaluated relative to the cycles of loading, were very similar when evaluated in terms of their energy dissipation.
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