The Nonlinear Mechanics and Dynamics (NOMAD) Research Institute brings together graduate students and early career researchers to work in small teams on computational and experimental projects germane to nonlinear mechanics and dynamics.
The goals of NOMAD are to form collaborations between national laboratories, academia, and industry and to make significant progress toward solving major challenges in mechanical engineering. Participants are expected to publish the results from their projects and/or present their findings at an appropriate conference.
NOMAD is an educational research opportunity where students are matched with research projects and mentors based on their interests and qualifications.
Past Projects from NOMAD 2017:
Inverse Methods for Characterization of Contact Areas in Mechanical Systems
This project will involve numerical studies to generate synthetic data on a set of simplified interface models to ascertain how much measured data is needed to adequately use inverse methods to resolve the contact/non-contact areas, and thus avoid non-unique model calibration. View presentation.
From Macroscopic Tensile Tests to Microscopic Mechanical Response of Components
This project will compare the local response of different constitutive models, matching the same experimental macroscopic response to explore the limitation in predictive power of tensile stress-strain curves at macroscopic and microscopic scales under non-tensile loading, and non-smooth geometries. View presentation.
Investigation of Craig-Bampton Models with Interface Reduction for Contacting Structures
In an effort to improve the efficiency of Craig-Bampton substructures with contact models at interfaces, this project will seek to use interface reduction techniques to further reduce the interface degrees-of-freedom and increase the critical time step required for explicit time integration. View presentation.
Influence of Edge Boundary Conditions and Cracks in Ferroelectrically-Excited Vibrational Modes
In this study, finite element models will be used to implement boundary conditions along edges and cracks to determine the level of influence that they can have. Of specific interest are predictions of whether the ferroelectrically-excited modes will be sensitive to cracks that can commonly appear near either restrained or traction-free corners. View presentation.
Experimentally Characterize a new Benchmark Structure for Prediction of Damping Nonlinearity
In this project a team of students will use state of the art system identification methods to characterize the nonlinear dynamic response of a new benchmark structure that has been proposed to aid in the development of predictive methods for structures with joints. View presentation.
Coupled Structural Acoustic Modes
The objective of this study is to experimentally measure the acoustoelastic coupled modes from a structure with a hollow cavity. Modifications to the cavity will be made to damp the acoustic modes and mitigate the unwanted coupling. View presentation.