Atlanta-based Novelis Inc. and Georgia Tech have announced a new collaboration to establish the Novelis Innovation Hub at Georgia Tech. The company has committed $2.5 million to initiate research, faculty, student, and educational program support. The collaboration will promote basic and translational research, innovative business models, and related educational endeavors at Georgia Tech and will serve as a cross-functional hub connecting Novelis’ technical and business innovators with Georgia Tech’s students and faculty.

Transverse wrinkles usually occur in a uniaxially tensile elastic membrane and will be smoothed upon excess stretching. This instability-restabilization response (isola-center bifurcation) can originate from the nonlinear competition between stretching energy and bending energy. Here, we find a crucial factor, the curvature, which can control effectively and precisely the wrinkling and smoothing regimes. When the sheet is bent, the regime of wrinkling amplitude versus membrane elongation is narrowed, with local wrinkling instability coupled with global bending.

The lab of Wave Engineering for eXtreme and Intelligent matTEr (We-Xite) has multiple openings for Ph.D. positions. We are looking for exceptional and highly motivated candidates with background in Engineering, Physics, Materials or Mathematics. The research will have a balance between experimental characterizations (non-destructive evaluation of samples fabricated using additive and subtractive methods), numerical simulations (finite element modeling and topology optimization) and analytical derivations (nonlinear dynamics of spring-mass systems).

Directional solidification of Al-11 at % Cu is investigated by molecular dynamics (MD) simulations utilizing second nearest neighbor modified embedded atom method (2NN-MEAM) interatomic potential. The condition for directional solidification is produced by imposing dissimilar temperatures at the model boundaries along the [1 0 0] solidification direction to create a temperature gradient. During solidification, the solid-liquid front travels through the Al-Cu liquid along the [1 0 0] direction towards the high temperature end.

The Boston University Department of Mechanical Engineering anticipates two openings for tenure-track junior faculty positions, pending approval by the Provost. We welcome applications from all Emerging Areas of Mechanical Engineering, including, but not limited to: energy: sustainability and resource management; robotics and control: micro and nanoscale; and advanced materials: smart fabrics and textiles.

A criterion for the mean stress effect correction in the shift factor approach for variable amplitude life prediction is presented for both smooth and notched specimens. The criterion is applied to the simple idea proposed by the authors in a previous note that Gaßner curves can be interpreted as shifted Wöhler curves. The mean stress correction used has been proposed by Smith, Watson and Topper and, more in general, by Walker.

Tensional wrinkles are widely observed in elastic thin films, with mono-orientation of wrinkles being usually perpendicular to the stretching direction. Here, by changing material orthotropic direction, we present orientable wrinkles in uniaxially stretched orthotropic membranes. To quantitatively explore orthotropy-related wrinkles and their morphological evolution, we develop a mathematical model by introducing orthotropic, elastic constitution into the extended F\"oppl-von K\'arm\'an nonlinear plate theory that can describe large in-plane anisotropic deformations.

https://doi.org/10.1016/j.compscitech.2019.107832

Link to author's personalized share link for free access until November 19 2019: https://authors.elsevier.com/a/1ZpgjyZzKoGVz

Abstract:

A postdoc in the area of flexible skin for morphing wings is available at Khalifa University, UAE. 

Two Ph.D. positions and one postdoc position are available in Wang Research lab (https://www.wangresearchlab.com) in Mechanical Engineering at the University of Missouri, Columbia.

Ph.D. positions