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Post-Doc position at MSU - Multi-axis vibrations

Submitted by joodaky on

We are currently seeking a highly motivated candidate for a Post-Doc position in the School of Packaging at MSU. The focus of this position will be on studying the multi-axis vibrations experienced by packages during transportation. This research will involve utilizing various tools and techniques such as a multi-axis shaker, acceleration sled, FEM simulations, nonlinear models, and more. To be considered for this position, the ideal candidate should possess the following qualifications:

Universal Displacements in Inextensible Fiber-Reinforced Linear Elastic Solids

Submitted by arash_yavari on

For a given class of materials, universal displacements are those displacements that can be maintained for any member of the class by applying only boundary tractions. In this paper we study universal displacements in compressible anisotropic linear elastic solids reinforced by a family of inextensible fibers. For each symmetry class and for a uniform distribution of straight fibers respecting the corresponding symmetry we characterize the respective universal displacements. A goal of this paper is to investigate how an internal constraint affects the set of universal displacements.

Article: Interaction of two cylinders immersed in a viscous fluid. On the effect of moderate Keulegan–Carpenter numbers on the fluid forces

Submitted by lagrangr on

This work deals with the hydrodynamic interaction of two parallel circular cylinders, with identical radii, immersed in a viscous fluid initially at rest. One cylinder is stationary while the other one is imposed a harmonic motion with a moderate amplitude of vibration. The direction of motion is parallel to the line joining the centers of the two cylinders. The two dimensional fluid–structure problem is numerically solved by the Arbitrary Lagrangian–Eulerian method implemented in the open-source CFD code TrioCFD.

Postdoc position available in x-ray characterization of geomaterials at Johns Hopkins University

Submitted by Ryan C. Hurley on

A postdoctoral researcher position is available beginning July 1, 2023 in Professor Ryan Hurley’s laboratory (http://hurley.me.jhu.edu) in the Department of Mechanical Engineering and the Hopkins Extreme Materials Institute at the Johns Hopkins University.

A new method of plastic limit analysis for rectangular plates

Submitted by Jiang Ke on

Based on a new element model of solid body, the plastic limit analysis of plate is carried out. The new element model is a truss composed of 24 bars. Taking the simply supported square plate and rectangular plate under uniform load as an example, by comparing the new element method with the classical plastic limit analysis theory, it can be found that the limit load and the distribution of plastic zone obtained by the two methods are in good agreement.

A new model for elasto-plastic analysis of steel

Submitted by Jiang Ke on

This is a beautiful, unparalleled elastoplastic model for plastic materials.

Based on the equivalent stress and deformation of regular hexahedron microelement and truss element, a new truss element model is presented. It can be used to solve the elasto-plastic plane stress problem and spatial problem of steel. Through a large number of examples, the new element model can be found to have good accuracy.