Teng zhang's blog

Morphing matter includes biological and engineering materials and structures with dynamic and tunable properties such as shape, color, stiffness, texture, and density. Examples include pinecones that open when dried and close when wet, octopus that camouflages by changing body shapes, textures and colors, food that changes shapes during cooking, and smart windows that dynamically tune color and surface roughness.

The Mechanical and Aerospace Engineering Department (MAE) at Syracuse University is seeking applications for a Tenure-Track Assistant Professor position in the field of Solid Mechanics beginning Fall 2023.

Postdoc Open Position

Abstract: Even for relatively simple thin shell morphologies, many different buckled configurations can be stable simultaneously. Which state is observed in practice is highly sensitive to both environmental perturbations and shell imperfections. The complexity and unpredictability of postbuckling responses has therefore raised great challenges to emerging technologies exploiting buckling transitions.

 The Syracuse Biomaterials Institute and the Departments of Biomedical and Chemical Engineering (BMCE) and Mechanical and Aerospace Engineering (MAE) in the College of Engineering and Computer Science at Syracuse University invite applications for a Postdoctoral Research position, scheduled to begin in the fall of 2019.

Title: Non-uniform curvature and anisotropic deformation control wrinkling patterns on tori

Dear friends and colleagues,

We would like to welcome your ideas and invite you to submit an abstract to the symposium on Functional Soft Composites - Design, Mechanics, and Manufacturing (symposium 7.2 under the Track 7: Mechanics and Physics of Materials) at the Society of Engineering Science (SES) that will be held at Washington University in St. Louis October 13-15, 2019.

The Department of Mechanical Engineering at University of Mississippi ("Ole Miss"), Oxford, MS is seeking to fill a Tenure-Track Assistant Professor position in Design and Manufacturing to start Fall 2019. Successful candidate is expected to foster a balanced program of research and undergraduate/graduate instruction that integrates the perspectives of machine design, manufacturing, and robotics.

Dear friends and colleagues,

We invite you to submit an abstract to Symposium on Functional Soft Composites - Design, Mechanics, and Manufacturing. This symposium is part of 2019 ASME International Mechanical Engineering Congress & Exposition, November 8-14, 2019 Salt Lake City, Utah, US.  The symposium is sponsered by the Compoiste Material technical committee in the Applied Mechanics Division of ASME. 

Two Ph.D. positions are available immediately in the Department of Mechanical Engineering at University of Mississippi (Ole Miss). The positions can be started as early as Jan 23, 2019 if possible.  Successful candidates will participate in a vibrant interdisciplinary and collaborative research group in our Blast and Impact Dynamics Lab and Additive Manufacturing for Research and Education Cluster (AMREC) at Ole Miss, and be involved in projects pursuing research in the field of shockwave/high-strain rate impact simulations, material and constitutive modeling, and failure analysis.

Teng Zhang

Department of Mechanical and Aerospace Engineering, Syracuse University

Introduction

Lattice models are popular methods for simulating deformation of solids by discretizing continuum structures into spring networks. Despite the simplicity and efficiency, most lattice models only rigorously converge to continuum models for lattices with regular shapes. Here, we derive a lattice model for neo-Hookean solids directly from finite element methods (FEM). The proposed lattice model can handle complicated geometries and tune the material compressibility without significantly increasing the complexity of the model.

Dear Colleague,

The next Engineering Mechanics Institute Conference (EMI) will take place from May 29th to June 1st, 2018, at MIT.

As organizers of the Mini-Symposium MS20 “Nonlinear mechanics of highly deformable solids and structures”, it is our pleasure to invite you and your students to participate in our mini symposium.
The deadline for abstract submission is January 31st, 2018.

Abstract

Soft materials including elastomers and gels are pervasive in biological systems and technological applications. Whereas it is known that intrinsic fracture energies of soft materials are relatively low, how the intrinsic fracture energy cooperates with mechanical dissipation in process zone to give high fracture toughness of soft materials is not well understood. In addition, it is still challenging to predict fracture energies and crack-tip strain fields of soft tough materials.

We have read some papers of stroh formalism and the textbook of Tom Ting, and found that the stroh formalism and the hamilton system proposed by prof.zhong wanxie had some relation. We want to know whether the stroh formalism is enough for the analysis of the anisotropic elastic? Thus's to say, for some problems could not  give the satisfied answer which we may try the hamilton framework. I briefly compare the two methods as follows:

I am a junior graduate student now, and very interesting in wave motion. My advisor Prof. Zhong wanxie and his PHD student qiang Gao have developed a precise numerical technique to solve the Rayleigh wave frequency equation, which can avoid the missing root. They did a systematic work involving surface wave propagation in a transversely isotropic stratified solid resting on an elastic semi-infinte space, wave propagation in the anisotropic layered media and the propagation of stationary and non-stationary random waves in a viscoelastic, transversely isotropic and stratified half space.