Aaron S. Baumgarten
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View article: A predictive model for fluid-saturated, brittle granular materials during high-velocity impact events
A predictive model for fluid-saturated, brittle granular materials during high-velocity impact events Open
Granular materials -- aggregates of many discrete, disconnected solid particles -- are ubiquitous in natural and industrial settings. Predictive models for their behavior have wide ranging applications, e.g. in defense, mining, constructio…
View article: Analysis and mitigation of spatial integration errors for the material point method
Analysis and mitigation of spatial integration errors for the material point method Open
Summary The material point method (MPM) is a robust numerical simulation approach for continuum mechanics problems involving large material deformations coupled to changing surface topographies. These types of problems are present in many …
View article: A general constitutive model for dense, fine-particle suspensions validated in many geometries
A general constitutive model for dense, fine-particle suspensions validated in many geometries Open
Significance Shear-thickening suspensions display peculiar phenomena, exhibiting solid-like and fluid-like behaviors at the same volume fraction. These materials have puzzled researchers since the 1930s and have seen renewed interest due t…
View article: A general fluid–sediment mixture model and constitutive theory validated in many flow regimes
A general fluid–sediment mixture model and constitutive theory validated in many flow regimes Open
We present a thermodynamically consistent constitutive model for fluid-saturated sediments, spanning dense to dilute regimes, developed from the basic balance laws for two-phase mixtures. The model can represent various limiting cases, suc…
View article: A general fluid-sediment mixture model and constitutive theory
A general fluid-sediment mixture model and constitutive theory Open
We present a thermodynamically consistent constitutive model for fluid-saturated sediments, spanning dense to dilute regimes, developed from the basic balance laws for two phase-mixtures. The model can represent various limiting cases, suc…
View article: A coupled, two-phase fluid-sediment material model and mixture theory implemented using the material point method
A coupled, two-phase fluid-sediment material model and mixture theory implemented using the material point method Open
Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2018.