research

With funding from the Haythornthwaite Foundation, the Executive Committee (EC) of the Applied Mechanics Division (AMD) of ASME is pleased to announce the establishment of the Haythornthwaite Research Initiation Grant Program, targeting university faculty engaged in research in theoretical and applied mechanics that are at the beginning of their academic careers. Applicants must hold a tenure‐track appointment at the rank of Assistant Professor at a US university on October 1, 2023, and must not be more than 5 years beyond receipt of their doctoral degree at the time

In the past 3 years, Brown Engineering faculty led by Professor Yuri Bazilevs with co-directors Professors Kenny Breuer and Pradeep Guduru have won more than $15 million in awards for research in Mechanics of Undersea Science and Engineering (MUSE). This was made possible by partnering with Naval researchers and the Naval Undersea Warfare Center (NUWC) in Newport, R.I.

This center may bring great opportunities for doing doctoral and postdoctoral research at Brown. I look forward to interacting with new colleagues and following the progress of MUSE.

PhD positions are available for DurAMat which is a Marie Skłodowska-Curie Actions - Doctoral Network (MSCA-DN) project.  A total number of 11 PhD students will be hired for DurAMat. One PhD student will join us at the department of Physics of the University of Gothenburg in Sweden. The project details and the application process are described in the project website: http://duramat-project.eu/

Yida Zhang

Assistant Professor

Department of Civil, Environmental and Architectural Engineering, University of Colorado Boulder, Boulder, CO, 80303

Research lab: https://www.yidazhanggroup.com/

1. Introduction

Diverse science and engineering problems are governed by delay differential equations (DDE). Seeking periodic solutions of DDEs is crucial for many nonlinear dynamic systems. The incremental harmonic balance (IHB) method is an efficient semi-analytical ap- proach for periodic solutions of DDE.

The Design & Uncertainty Quantification group at The University of Iowa, led by Professor Sharif Rahman, is looking for two new Ph.D. students, who are capable of and interested in performing high-quality research on solid mechanics, uncertainty quantification, and design optimization. The research, supported by U.S. National Science Foundation, requires building a solid mathematical foundation, devising efficient numerical algorithms, and developing practical computational tools, all associated with stochastic analysis and design of complex materials and structures.

The thermal-hydraulics as well as flow-induced vibration of wire-wrapped rod bundles calls for accurate and efficient liquid metal flow simulation and prediction, yet it remains a challenge due to the complex geometries and high Reynolds number flow in wire-wrapped rod channel. Previous efforts towards this goal exclusively adopts full-order modeling (FOM), which is prohibitively computation-intensive.

We present a general formalism for the analysis of mechanical lattices with microstructure using the concept of effective dynamic mass. We first revisit a classical case of microstructure being modeled by a  spring-interconnected mass-in-mass cell. The frequency-dependent effective dynamic mass of the cell is the sum of a static mass and of an added mass, in analogy to that of a swimmer in a fluid. The effective dynamic mass is derived using three different methods: momentum equivalence, dynamic condensation, and action equivalence.