The High Performance Materials and Structures Lab
Our group is focused on studying the mechanical behavior and performance of materials and structures, at various scales from nanowires and living cells to ships and buildings. Our special interest and expertise is development of new concepts and designs for enhancing the performance of structures and materials. We use a combination of methods that range from simple observations and simple scaling laws to detailed computational models and sophisticated experimental equipments to carry out our work.
Topics of our work are generally motivated by considering the current challenges and needs in structures, mechanics, materials including biomaterials and biomechanics and nanotechnology. Many of these topics are initiated and carried out via our industrial collaborations.
- Hierarchical Honeycombs with Tailorable Properties
A. Ajdari, B. Haghpanah, J. Papadopoulos, H. Nayeb-Hashemi & A. Vaziri, Int. J. Solids and Structures, 2012, 49, pp. 1413–141.
- Parametric Investigation of Load -induced Structure Remodeling in the Proximal Femur
A. Marzban, P. Canavan, G. Warner, A. Vaziri & H. Nayeb-Hashimi, J. Engineering in Medicine, 2012, 226, pp. 450–460.
- Mechanical properties of open-cell rhombic dodecahedron cellular structures
S. Babaee, B. Haghpanah, A. Ajdari, H. Nayeb-Hashemi & A. Vaziri, Acta Materialia, 2012, 60, pp. 2873–2885.
- Elasto-plastic stresses in a functionally graded rotating disk
B. Haghpanah, H. Nayeb-Hashemi, & A. Vaziri, ASME Journal of Engineering Materials and Technology, 2012, 134, pp. 021004.
- Instability of Cylindrical Shells with Single and Multiple Cracks under Axial Compression
B. Haghpanah & A. Vaziri, Thin-Walled Structures, 2012, 54, pp. 35-43.
- Shear and bending performance of carbon fiber composite sandwich panels with pyramidal truss cores
J. Xiong, L. Ma, S. Pan, L. Wu, J. Papadopoulos & A. Vaziri, Acta Materialia, in press.
- Effect of Processing Variables and Fiber Reinforcement on the Mechanical Properties of Wood Plastic Composites
M. Ashrafi, A. Vaziri & H. Nayeb-Hashemi, Journal of Reinforced Plastics and Composites, in press.
- Wrinkling of pressurized elastic shells
D. Vella, A. Ajdari, A. Vaziri & A. Boudaoud, Physical Review Letters, 2011, 107, pp. 174301.
- Compression and impact testing of two-layer composite pyramidal-core sandwich panels
J. Xiong, A. Vaziri, L. Ma, J. Papadopoulos & L. Wu , Composite Structures, in press.
Last Updated: May 4, 2012
Associate Professor, Northeastern University
Associate of the School of Engineering and Applied Sciences, Harvard
Associate Technical Editor, Experimental Mechanics
Drs. Vaziri and Nayeb-Hashemi awarded three international grants from Qatar Foundation.
Dr. Vaziri won 2012 Søren Buus Outstanding Research Award.
Babak Haghpanah won the 2012 College of Engineering RA Award.
Dr. Vaziri awarded NSF CAREER award.
The paper by Vaziri and Hutchinson (IJSS, 2007) is amongst the most-cited articles of the journal published since 2007.
Our PRL paper on wrinkling of pressurized shells was featured in Physics World.
Jian Xiong was awarded the "Young Scientist Award" by the organizing committee of Advanced Computational Engineering and Experimenting (ACE-X2011) conference.
'A step forward in arthritis prevention', a news article published Jan 12, 2011 at Northeastern University homepage
The article "High Aspect Ratio Wrinkles on a Soft Polymer" was one of the top ten most-read articles of the journal in November 2010.
Several graduate, and undergraduate research positions are available. If you are interested, please email your CV along with a cover letter expressing your background and research interests to Professor Ashkan Vaziri.
Northeastern is an equal opportunity employer and encourages applications from under-represented groups such as women and minorities.