Aditi Chattopadhyay

AIMS Center Director

Regents’ Professor, Arizona State University

Ira A. Fulton Professor of Mechanical and Aerospace Engineering

School for Engineering of Matter, Transport and Energy

Director, Adaptive Intelligent Materials & Systems (AIMS) Center

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Principle Areas of Research

Al for Air Traffic Safety Enhancement: Sensing and Control: Machine learning based real-time aircraft safety monitoring, Stochastic post-upset flight dynamics prognosis for aviation safety management, Surrogate models for air traffic management.

Structural & Computational Mechanics: thermomechanical/oxidative damage and degradation of ceramic matrix composites (CMCs), multiscale modeling of heterogeneous and multifunctional materials (composites, nanocomposites, metallic materials); reduced order modeling of high-fidelity simulations. Nonuniform Transformation Field Analysis (NTFA) including plasticity and damage, multiscale wave propagation in composites; high strain rate modeling of polymer matrix composites for high velocity impact, biaxial fatigue of composites, refined shear deformation theories, stability.  

Multifunctional Materials (modeling and synthesis): multifunctional shape memory polymers, self-sensing and self-healing mechanophore (stress-sensitive) based thermoset polymer matrix composites (PMCs), carbon nanotube (CNT) (dispersed and radially grown) integrated composites, CNT bucky paper membranes for sensing, EMI shielding, and fatigue crack retardation in PMCs.

Systems Health Management (SHM): real time damage detection and damage prognosis under complex loading, ultrasonic wave propagation, multi-dimensional signal processing, on-line/off-line prognosis model. Applications include metallic structures, complex sandwich structures, composite joints, barely visible impact damage (BVID), printed circuit boards, and in-flight anomaly detection in commercial aircraft and integration to NASA’s Next Generation Air Transportation System (NATS). 

Molecular Dynamics (MD): Quantum mechanics-based hybrid MD; atomistically informed damage evolution laws; interphase/interface mechanics in composites and nano-enhanced composites; coarse grain (CG) modeling.  

Fatigue of metallic and composite structures: biaxial fatigue with in-phase and out of phase loading, overloads and under loads; bending-torsion fatigue with overloads and underloads; ultra-high cycle fatigue, fatigue testing using compressed load spectrum.

Material characterization and testing – multiscale characterization of material microstructure; high temperature testing of CMCs); characterization and testing of adhesive bonding for space structure applications, nondestructive evaluation, synthesis, and processing of multifunctional and nano-enhanced composites. 

Multidisciplinary design optimization: fixed- and rotary-wing applications; multiobjective optimization, multilevel decomposition, semi-analytical sensitivity analysis techniques.