The Multiscale Computational Science and Engineering Laboratory conducts research in areas such as multiscale modeling and simulation, nanocomposites, deep learning, reinforcement learning, robotics and control, and complex systems. 


 

Research Team

Shaoping Xiao

Shaoping Xiao, PhD

Title/Position
Director, Multiscale Computational Science and Engineering Laboratory
Associate Professor, Department of Mechanical Engineering
Akram Ghaffarigharehbagh

Akram Ghaffarigharehbagh

Title/Position
Graduate Research Assistant
Junchao Li

Junchao Li

Title/Position
Graduate Research Assistant
Zhaoan Wang

Zhaoan Wang

Title/Position
Graduate Research Assistant

Projects and Publications

Machine Learning–Enhanced Multiscale/Multiphysics Modeling of Spatially Tailored Materials with Multiscale Experimental Validation

Sponsor: U.S. National Science Foundation

Project No.: CMMI-2104383

Duration: Aug 15, 2021 – Aug 14, 2024

Principal Investigator: Professor Shaoping Xiao

Co Principal Investigators: Professors Caterina Lamuta and Phillip Deierling

Past and Current Graduate Students: Siamak Attarian, Arunabha Batabyal, Akram Ghaffarigharehbagh, and Mahmudul Alam Shakib

Summary: This project is developing a new computer model to design and study the mechanical behavior of metal-ceramic composites. In most traditional composites, the component distributions are constant to enhance the material properties evenly. In contrast, the metal-ceramics composites studied in this project have component distributions that vary from location to location. Therefore, engineers can design the proper composite structure with various desired material properties at different critical locations. The new computer model includes several computation algorithms at nanoscale, microscale, and macroscale, respectively. In addition, the project provides for validation of the computer model by fabricating the composite samples and testing them on different types of equipment. This project also consists of some outreach activities for undergraduate students and K-12 students.

Related Publications, Presentations, and Other Outcomes:

Attarian, S., Xiao, S. P., “Development of a 2NN-MEAM potential for Ti-B system and studies of the temperature dependence of the nanohardness of TiB2”, Computational Materials Science, 201, 2022, 110875. https://doi.org/10.1016/j.commatsci.2021.110875

El Tuhami, A. and Xiao S. P. “Multiscale Modeling of Metal-Ceramic Spatially Tailored Materials via Gaussian Process Regression and Peridynamics”, International Journal of Computational Methods, 2022, 2250025. https://doi.org/10.1142/S0219876222500256

Attarian, S. and Xiao, S. P., “Investigating the strength of Ti/TiB interfaces at multiple scales using density functional theory, molecular dynamics, and cohesive zone modeling”, Ceramic International, 48(22), 2022, 33185-33199. https://doi.org/10.1016/j.ceramint.2022.07.259

S. Xiao, “Multiscale modeling of metal-ceramic spatially tailored materials via machine learning,” Engineering Mechanics Institute Conference 2022, Baltimore, Maryland, May 31-June 3, 2022

S.Xiao, S. Attarian, and P. Deierling, “Deeping learning in multiscale modeling of spatially tailored materials,” 15th World Congress on Computational Mechanics, Yokohama, Japan, July 31-Aug 5, 2022

S. Xiao, “Investigating the mechanics of Ti/TiB interfaces at multiple scales: from quantum mechanics to molecular dynamics”, 4th International Conference on Materials Science and Engineering, Houston, TX, April, 2023

Dataset and neural networks: https://github.com/jwli0728/ANNs-in-Material-Science

Modular deep reinforcement learning for continuous motion planning with temporal logic
M Cai, M Hasanbeig, S Xiao, A Abate, Z Kan
IEEE Robotics and Automation Letters 6 (4), 7973-7980, 2021

Machine learning in multiscale modeling of spatially tailored materials with microstructure uncertainties
S Xiao, P Deierling, S Attarian, A El Tuhami
Computers & Structures 249, 106511, 2021

Development of a 2NN-MEAM potential for boron
S Attarian, S Xiao
Journal of Micromechanics and Molecular Physics 5 (03), 2050008, 2020

A machine-learning-enhanced hierarchical multiscale method for bridging from molecular dynamics to continua
S Xiao, R Hu, Z Li, S Attarian, KM Björk, A Lendasse
Neural Computing and Applications 32 (18), 14359-14373, 2020

Investigation of the Observed Rupture Lines in Abdominal Aortic Aneurysms Using Crack Propagation Simulations
S Attarian, S Xiao, TC Chung, ES da Silva, ML Raghavan
Journal of biomechanical engineering 141 (7), 2019

Peridynamics with Corrected Boundary Conditions and Its Implementation in Multiscale Modeling of Rolling Contact Fatigue
MA Ghaffari, Y Gong, S Attarian, S Xiao
Journal of Multiscale Modelling 10 (01), 1841003, 2019

Atomistic simulation of diffusion bonding of dissimilar materials undergoing ultrasonic welding
A Samanta, S Xiao, N Shen, J Li, H Ding
The International Journal of Advanced Manufacturing Technology, 2019

Multiscale modeling and simulation of rolling contact fatigue
MA Ghaffari, Y Zhang, S Xiao
International Journal of Fatigue 108, 9-17, 2018

News

Shaoping Xiao

UI professor uses AI to model and control water reservoir discharge during flooding

Friday, November 18, 2022
Shaoping Xiao, a University of Iowa mechanical engineering associate professor, is developing an artificial intelligence-powered model to optimize how water reservoirs are used to regulate streamflow during flooding.
Abstract image

UI professor awarded a $1 million grant to research machine learning, modeling, and simulation

Friday, February 25, 2022
University of Iowa Technology Institute faculty affiliates Sharif Rahman, Jia Lu, and Shaoping Xiao, who are all faculty in the Department of Mechanical Engineering, are on a research team led by Ching-Long Lin studying the educational gap between engineering scholars.
Abstract image

New $1M grant to bridge educational gaps between modeling and simulation and machine learning

Friday, February 18, 2022
The United States Department of Education has awarded a $1 million grant to Professors Ching-Long Lin (PI), Sharif Rahman, Jia Lu, Shaoping Xiao, Rachel Vitali and Jane Russell to develop artificial intelligence modeling and simulation (AIMS) programs to bridge educational gaps between modeling and simulation and machine learning.
Student Spotlight

'Inside the Lab' series returns with more stories from ITI student researchers

Wednesday, November 3, 2021
Brittany Allen is among several University of Iowa students featured in the Iowa Technology Institute's spotlight series, “Inside the Lab: Student Stories,” promoting the student researchers who make vital contributions to the labs at ITI. In the spotlight series, the students, in their own words, discuss their research experiences, why they chose the University of Iowa, future goals, and more.
Xiao teaching

NSF grant to support ITI researcher's study of specially modified materials

Thursday, October 14, 2021
A research scientist at the University of Iowa Technology Institute (ITI) is developing a new method to study materials that can better withstand the demands of use in high-tech industries, including automotive, aerospace, and biomedical. Shaoping Xiao was awarded a National Science Foundation grant to develop this new computational method for investigating the mechanics of a modified group of materials at multiple scales.
Iowa Magazine Cover March 2021

ITI contributes to discovery through artificial intelligence at University of Iowa

Thursday, February 11, 2021
Iowa Technology Institute faculty affiliates are helping "power discovery" through artificial intelligence at the University of Iowa, including Shaoping Xiao, Michael Schnieders, Xiaodong Wu, and Stephen Baek.