21 citations · 39 across the 13 of their papers we have counts for
14 papers
Glite ARF: Verifier-Driven Research with Parallel LLM Coding Agents
Vassili Philippov, Pavel Katunin, Dmitry Andreev +2
LLM coding agents make it tempting to automate empirical research by delegating experiments to them directly, but naive delegation does not scale to large projects: low-rate instru…
How Fast are Domino Waves?
Daniel Ding, Clement Lau, Jorrit Westerhof +4
The paper is concerned with the problem of toppling propagation velocity in elastic, domino-like mechanical systems. We build on the work of Efthimiou and Johnson, who developed th…
Local ultra-densification of single-walled carbon nanotube films: modeling and experiment
Artem K. Grebenko, Grigorii Drozdov, Yuriy G. Gladush +15
Fabrication of nanostructured metasurfaces poses a significant technological and fundamental challenge. Despite developing novel systems that support reversible elongation and dist…
Simulation-Guided Optimization of Granular Phononic Crystal Structure Using the Discrete Element Method
Igor Ostanin, Hongyang Cheng, Vanessa Magnanimo
The paper describes a novel methodology of designing granular phononic crystals for acoustic wave manipulations. A discrete element method is utilized to model the dynamics of a pu…
Densification of Single-Walled Carbon Nanotube Films: Mesoscopic Distinct Element Method Simulations and Experimental Validation
Grigorii Drozdov, Igor Ostanin, Hao Xu +10
Nanometer thin single-walled carbon nanotube (CNT) films collected from the aerosol chemical deposition reactors have gathered attention for their promising applications. Densifica…
Collapse modes in SC and BCC arrangements of elastic beads
Igor A. Ostanin, Artem R. Oganov, Vanessa Magnanimo
Collapse modes in compressed simple cubic (SC) and body-centered cubic (BCC) periodic arrangements of elastic frictionless beads were studied numerically using the discrete element…
A "String Art" approach to the design and manufacturing of optimal composite materials and structures
Igor A. Ostanin
In this paper we report a new promising idea on the design and manufacturing of ply composite structures, tailored to exhibit maximum stiffness under given weight constraints and l…
Optimization-based approach to the calibration of mesoscale mechanical models for carbon nanotube systems
Vitaliy Petrov, Igor Ostanin, Petr Zhilyaev
A new mesoscale mechanical model, describing elastic interactions in carbon nanotubes (CNT) and other nanofilaments, is proposed. Functional form of the developed model is based on…
Computational Study of Ultrathin CNT Films with the Scalable Mesoscopic Distinct Element Method
Igor Ostanin, Traian Dumitrică, Sebastian Eibl +1
In this work we present a computational study of the small strain mechanics of freestanding ultrathin CNT films under in-plane loading. The numerical modeling of the mechanics of r…
High-Performance Numerical Modeling of Nanofabrics with Distinct Element Method
Igor A. Ostanin
A universal framework for modeling composites and fabrics of micro- and nanofibers, such as carbon nanotubes, carbon fibers and amyloid fibrils, is presented. Within this framework…
A parameteric class of composites with a large achievable range of effective elastic properties
Igor Ostanin, George Ovchinnikov, Davi Colli Tozoni +1
In this paper we investigate numerically an instance of the problem of G-closure for two-dimensional periodic metamaterials. Specifically, we consider composites with isotropic hom…
What Lies Beneath the Surface: Topological-Shape Optimization With the Kernel-Independent Fast Multipole Method
Igor Ostanin, Ivan Tsybulin, Mikhail Litsarev +2
The paper presents a new method for shape and topology optimization based on an efficient and scalable boundary integral formulation for elasticity. To optimize topology, our appro…
Time- and memory-efficient representation of complex mesoscale potentials
Grigory Drozdov, Igor Ostanin, Ivan Oseledets
We apply the modern technique of approximation of multivariate functions - tensor train cross approximation - to the problem of the description of physical interactions between com…
Toward Fast Topological-Shape Optimization With Boundary Elements
Igor Ostanin, Denis Zorin, Ivan Oseledets
Wide variety of engineering design tasks can be formulated as constrained optimization problems where the shape and topology of the domain are optimized to reduce costs while satis…