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Variable-density cellular structures can overcome connectivity and manufacturability issues of topologically optimized structures, particularly those represented as discrete density maps. However, the optimization of such cellular…

计算工程、金融与科学 · 计算机科学 2022-06-08 Jun Wang , Wei Wayne Chen , Daicong Da , Mark Fuge , Rahul Rai

Four-dimensional scanning transmission electron microscopy (4D-STEM) provides rich, atomic-scale insights into materials structures. However, extracting specific physical properties - such as polarization directions essential for…

We present here a new approach for using the intelligence aspects of artificial intelligence for knowledge discovery rather than device optimization in electromagnetic (EM) nanostructures. This approach uses training data obtained through…

We propose a novel numerical approach for the optimal design of wide-area heterogeneous electromagnetic metasurfaces beyond the conventionally used unit-cell approximation. The proposed method exploits the combination of Rigorous Coupled…

应用物理 · 物理学 2017-09-19 Krupali D. Donda , Ravi S. Hegde

This work studies a broadband graded metamaterial, which integrates the piezoelectric energy harvesting function targeting low-frequency structural vibrations, lying below 100 Hz. The device combines a graded metamaterial with beam-like…

This article proposes a data-driven methodology to achieve a fast design support, in order to generate or develop novel designs covering multiple object categories. This methodology implements two state-of-the-art Variational Autoencoder…

计算机视觉与模式识别 · 计算机科学 2018-08-07 Zhangsihao Yang , Haoliang Jiang , Zou Lan

Generative machine learning models have shown notable success in identifying architectures for metamaterials - materials whose behavior is determined primarily by their internal organization - that match specific target properties. By…

计算工程、金融与科学 · 计算机科学 2024-03-01 Gerrit Felsch , Viacheslav Slesarenko

Generating molecular structures with desired properties is a critical task with broad applications in drug discovery and materials design. We propose 3M-Diffusion, a novel multi-modal molecular graph generation method, to generate diverse,…

机器学习 · 计算机科学 2024-10-04 Huaisheng Zhu , Teng Xiao , Vasant G Honavar

For many materials, macroscopic mechanical behavior is determined by an intricate microstructure. Understanding the relation between these two scales helps scientists and engineers design better materials. The relation which maps…

计算物理 · 物理学 2026-05-13 Arnaud Vadeboncoeur , Mark Girolami , Kaushik Bhattacharya , Andrew M. Stuart

We show dense voxel embeddings learned via deep metric learning can be employed to produce a highly accurate segmentation of neurons from 3D electron microscopy images. A "metric graph" on a set of edges between voxels is constructed from…

计算机视觉与模式识别 · 计算机科学 2021-08-09 Kisuk Lee , Ran Lu , Kyle Luther , H. Sebastian Seung

The marriage of density functional theory (DFT) and deep learning methods has the potential to revolutionize modern computational materials science. Here we develop a deep neural network approach to represent DFT Hamiltonian (DeepH) of…

材料科学 · 物理学 2023-01-02 He Li , Zun Wang , Nianlong Zou , Meng Ye , Runzhang Xu , Xiaoxun Gong , Wenhui Duan , Yong Xu

The use of multifunctional composite materials adopting piezo-electric periodic cellular lattice structures with auxetic elastic behavior is a recent and promising solution in the design of piezoelectric sensors. In the present work,…

材料科学 · 物理学 2017-08-02 Maria Laura De Bellis , Andrea Bacigalupo

Deep learning and the collocation method are merged and used to solve partial differential equations describing structures' deformation. We have considered different types of materials: linear elasticity, hyperelasticity (neo-Hookean) with…

机器学习 · 计算机科学 2021-11-24 Diab W. Abueidda , Qiyue Lu , Seid Koric

We apply a deep convolutional neural network segmentation model to enable novel automated microstructure segmentation applications for complex microstructures typically evaluated manually and subjectively. We explore two microstructure…

计算机视觉与模式识别 · 计算机科学 2019-02-06 Brian L. DeCost , Bo Lei , Toby Francis , Elizabeth A. Holm

Rigorous theories connecting physical properties of a heterogeneous material to its microstructure offer a promising avenue to guide the computational material design and optimization. We present here an efficient Fourier-space based…

材料科学 · 物理学 2024-12-13 Wenlong Shi , Yang Jiao , Salvatore Torquato

Efficient algorithms to generate candidate crystal structures with good stability properties can play a key role in data-driven materials discovery. Here we show that a crystal diffusion variational autoencoder (CDVAE) is capable of…

材料科学 · 物理学 2022-11-18 Peder Lyngby , Kristian Sommer Thygesen

Periodic graphs are graphs consisting of repetitive local structures, such as crystal nets and polygon mesh. Their generative modeling has great potential in real-world applications such as material design and graphics synthesis. Classical…

机器学习 · 计算机科学 2022-10-07 Shiyu Wang , Xiaojie Guo , Liang Zhao

Image segmentation is fundamental to microstructural analysis for defect identification and structure-property correlation, yet remains challenging due to pronounced heterogeneity in materials images arising from varied processing and…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Sanjeev S. Navaratna , Nikhil Thawari , Gunashekhar Mari , Amritha V P , Murugaiyan Amirthalingam , Rohit Batra

As a nonlocal extension of continuum mechanics, peridynamics has been widely and effectively applied in different fields where discontinuities in the field variables arise from an initially continuous body. An important component of the…

数值分析 · 数学 2021-09-22 Xiao Xu , Marta D'Elia , John T. Foster

Mesoscale simulations of woven composites using parameterized analytical geometries offer a way to connect constituent material properties and their geometric arrangement to effective composite properties and performance. However, the…

材料科学 · 物理学 2023-02-21 Collin W. Foster , Lincoln N. Collins , Francesco Panerai , Scott A. Roberts