Current Members

Prof. Horacio Dante Espinosa

Group Leader

Professor Espinosa received his Civil Engineering degree from Northeast National University in Argentina in 1981. From 1982 to 1985, he practiced the profession by designing foundations of multi-story buildings, reinforced concrete plates, beams, columns used in multi-story buildings, and shells used in elevated reservoirs. Another activity he pursued was the design of city pavement and draining systems. In September of 1985 he started graduate studies at the Polytechnic of Milan until completion of a Master Degree in Structural Engineering. In August of 1987 he moved to the USA and started graduate studies at Brown University, earning a Ph.D. in Solid Mechanics. In January of 1992 he joined the faculty at Purdue University in the School of Aeronautics and Astronautics. Since January of 2000, he has been a professor in the Department of Mechanical Engineering at Northwestern University. Currently, he is the James N. and Nancy J. Farley Professor in Manufacturing & Entrepreneurship, Director of the Theoretical and Applied Mechanics Program, and the President of the Society of Engineering Science.

Dr. Matthew A. Daly

Post-Doctoral Fellow

Originally from Hamilton, Ontario, Canada, Matt received his Bachelor of Applied Science and Master of Applied Science in Mechanical Engineering from the University of Waterloo. During the third and fourth year of his Bachelor’s he participated in an exchange program with the TU Braunschweig in Germany, where he took a number of specialized courses in aerospace and aeronautical studies. He completed his undergraduate thesis work performing a transient thermal analysis for turbine generators in collaboration with Siemens Canada. During his Master’s, Matt characterized the thermomechanical properties of laser processed nickel-titanium shape memory alloys. After completing his Master’s work, Matt joined Smarter Alloys Inc., which is a smart materials startup company founded by members of his research group. Stubbornly committed to research, Matt joined the Department of Materials Science at the University of Toronto in the fall of 2012 for his doctoral studies. During his PhD, Matt was involved in integrated experimental-computational studies of 2D materials and nanocrystalline laminate structures. Matt joined Professor Espinosa’s research group in April 2017 as a post-doctoral fellow. His current research interests include computational mechanics and in situ mechanical testing.

Dr. Ehsan Hosseinian

Post-Doctoral Fellow

Ehsan Hosseinian was born on March 26th, 1988 in Tabriz, Iran. He received his B.S. degree in Mechanical Engineering from the University of Tehran in September 2010. Then, he received his M.S and Ph.D. degrees in Mechanical Engineering from the Georgia Institute of Technology in 2013 and 2016, respectively. His doctoral research topic focused on the application of micro-electro- mechanical systems for insitu TEM/SEM nanomechanical testing. Specifically, he studied fatigue, relaxation and fracture properties of nanocrystalline ultrathin films by developing an experimental setup for accurate measurement of these properties at the nanoscale. He was selected in 2017 to receive the prestigious Sigma Xi Research award for Best Ph.D. Dissertation. He joined Prof. Espinosa’s group in July 2016 as a post-doctorate research associate. His current research involves investigation of mechanical properties of two dimensional materials as well as development of microfluidic platforms for biomedical applications.

Alireza Zaheri

Graduate Student

Alireza was born in Tehran, Iran and received his Bachelor of Science degree in Civil Engineering from Sharif University of Technology (Iran) in 2010. As an undergraduate student, he proposed a novel method of calculation of elastic properties and strain gradient material constants by utilization of quantum mechanical studies under the supervision of Prof. Shodja. He then joined the department of Mechanical Engineering at Princeton University as a graduate student and earned his Master of Science in Engineering degree in 2013. During his research at Princeton, he worked with Prof. Haataja to understand the role of microstructure on the mechanical behavior and deformation mechanism of bulk metallic glasses and composites undergoing phase transformations by employing a mesoscale phase-field model. Alireza joined Prof. Espinosa’s group in Fall 2014 to pursue a PhD degree in Theoretical and Applied Mechanics. His current research interests include ultrastructural and mechanical characterization of biological species as well as biomimetic syntheses.

Rajaprakash Ramachandramoorthy

Graduate Student

Raj was born in Virudhunagar, India. He received his bachelor's degree in Aerospace Engineering from both University of Glasgow (Scotland, UK) and University of Illinois Urbana Champaign (USA). He worked as a research assistant at the Beckman Institute of Advanced Science and Technology at UIUC with Prof. Scott White on visualization of impact damage in self-healing composites. He then went to McGill University (Montreal, Canada) to earn his master’s degree in mechanical engineering, where he worked with Prof. Pascal Hubert on laser transmission welding of thermoplastic composites using laser refraction. He joined Prof. Espinosa’s group in Fall 2011 to pursue a PhD degree in Theoretical and Applied Mechanics. His current research interests include in situ SEM/TEM nanomechanical testing at high strain rates and fatigue testing of nanowires.

Siyan Dong

Graduate Student

Siyan is from Xiamen, China. He received his bachelor’s degree in Mechanical Engineering from UCLA in 2014. During his undergraduate education he joined the Microsystems Laboratory and worked on developing an advanced biological imaging system based on selective plane illumination microscopy (SPIM). He also gained experience during his undergraduate career working on microfluidic device fabrication, flexure structure design and simulation, and Smart Grid implementation. He joined Prof. Espinosa’s group in the fall of 2014 in pursuit of a PhD degree in Theoretical and Applied Mechanics. He currently works on characterization and utilization of 2D piezoelectric materials.

Rafael A. Soler-Crespo

Graduate Student

Rafael was born in Manatí, Puerto Rico. After spending most of his life in the coastal town of Vega Alta, he went on to obtain his Bachelor of Science in Chemical Engineering from the University of Puerto Rico at Mayagüez with highest honors. Due to his training in the fields of chemical and materials engineering, Rafael ardently pursued projects that linked microscopic to macroscopic properties during his undergraduate research work. This led him to obtain two patents for the synthesis of nanoporous materials under Prof. Marcelo Suárez. Additionally, Rafael worked under Prof. María Curet Arana developing reaction mechanisms, aided by DFT calculations, for the transformation of carbon dioxide to functional chemicals with the use of novel catalysts. He joined the Espinosa group in Fall 2012 to obtain a Ph.D. degree in Theoretical and Applied Mechanics, working on atomistic modeling applications for mechanics. His research interests include multiscale modeling, materials design, and computational mechanics.

Samba Shiva Prasad Nathamgari

Graduate Student

Shiva was born and raised in southern India. He received his Bachelor of Technology degree in Civil Engineering from Indian Institute of Technology (IIT), Guwahati in 2010. As an undergraduate student, he worked on research projects in the fields of Applied Mathematics (adaptive grids in singular perturbation problems), Inverse Problems in Engineering (leakage detection in pipe networks using inverse transient analysis), and Computational Mechanics (comparative study of locking-free shear-flexible beam in mesh-free methods). During 2010-12, he worked as Project Engineer with Indian Oil Corporation Ltd. in a 1000 km pipeline project. At Indian Oil, he designed and executed quality control (QC) plans related to construction of civil health monitoring units (repeater cum cathodic protection), pipe milling (submerged arc welding), and coating (coal-tar enamel and concrete weight). He joined Prof. Espinosa's group at Northwestern University in Fall 2012 to pursue his Ph.D. in Theoretical and Applied Mechanics. His current research interests include designing microfluidic platforms for single cell biology applications and using computational methods to explore nano-mechanics for system and material designs.

Prithvijit Mukherjee

Graduate Student

Prithvijit was born in West Bengal, India. He received his Bachelor of Engineering (Hons.) degree in Mechanical Engineering from Birla Institute of Technology and Science, Pilani in 2015. During his undergraduate studies he worked on the simulation of convective heat transfer in nanofluids and the design of a travelling wave DEP based microfluidic system for particle separation. He also worked on a MEMS based in situ fuel cell sensor under the guidance of Dr. Rustom Bhiladvala at the University of Victoria, Canada. His bachelor’s thesis involved the numerical investigation of instabilities at microfluidic interfaces. Prithvijit joined Prof. Espinosa’s group in fall 2015 to pursue his PhD in Theoretical and Applied Mechanics. His current research involves developing BioMEMS platforms for cell transfection and sampling via localized electroporation.

Zhaowen Lin

Graduate Student

Zhaowen is from Xinhui, China. He received his Bachelor’s degree in Theoretical and Applied Mechanics from the University of Science and Technology of China in 2015. During his undergraduate education, he joined Hongyuan Jiang’s group and worked on modeling of cell migration, cell division and friction between soft materials. He joined Prof. Espinosa’s group in the fall of 2015 in pursuit of a PhD degree in Theoretical and Applied Mechanics. He currently works on the characterization of metallic nanowires and development of MEMS devices.

Xu Zhang

Graduate Student

Xu is from Dalian, China. He received his Bachelor's degree in Materials Physics from the Harbin Institute of Technology (Harbin, China) in 2015, where he worked under the supervision of Professor You Wang on the photocatalysis of Titanium Dioxide/Graphene composite materials. He then earned his Master's degree in Materials Science and Engineering from Northwestern University (USA) in 2016. During his Master's, he worked with Professor Yip-Wah Chung to enhance the creep resistance of steel using computational thermodynamic approaches. He joined Professor Espinosa’s group in the Winter of 2016 to pursue a Ph. D. degree in Theoretical and Applied Mechanics, working towards the computational design of carbon-based nanocomposites. Xu is interested in statistical mechanics and molecular dynamics.



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