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The main result of this work is a homogenization theorem via variational convergence for elastic materials with stiff checkerboard-type heterogeneities under the assumptions of physical growth and non-self-interpenetration. While the…

偏微分方程分析 · 数学 2023-03-29 Wolf-Patrick Düll , Dominik Engl , Carolin Kreisbeck

We experimentally and numerically study the precise role of geometry for the mechanics of biholar metamaterials, quasi-2D slabs of rubber patterned by circular holes of two alternating sizes. We recently showed how the response to uniaxial…

软凝聚态物质 · 物理学 2016-06-03 Bastiaan Florijn , Corentin Coulais , Martin van Hecke

Dielectric elastomers (DEs) that couple deformation and electrostatics have the potential for use in soft sensors and actuators with applications ranging from robotic, biomedical, energy, aerospace and automotive technologies. However,…

软凝聚态物质 · 物理学 2020-10-07 Matthew Grasinger , Kaushik Dayal

The ability of mechanical systems to perform basic computations has gained traction over recent years, providing an unconventional alternative to digital computing in off grid, low power, and severe environments which render the majority of…

应用物理 · 物理学 2024-05-13 M. Moghaddaszadeh , M. Mousa , A. Aref , M. Nouh

The aim of this work is to efficiently and robustly solve the statistical inverse problem related to the identification of the elastic properties at both macroscopic and mesoscopic scales of heterogeneous anisotropic materials with a…

经典物理 · 物理学 2020-06-29 Tianyu Zhang , Florent Pled , Christophe Desceliers

The mechanical properties of a material are intimately related to its microstructure. This is particularly important for predicting mechanical behavior of polycrystalline metals, where microstructural variations dictate the expected…

材料科学 · 物理学 2024-01-23 Yejun Gu , Christopher D. Stiles , Jaafar A. El-Awady

We propose a framework to model elastic properties of polycrystals by coupling crystal orientational degrees of freedom with elastic strains. Our model encodes crystal symmetries and takes into account explicitly the strain compatibility…

材料科学 · 物理学 2009-11-07 Rajeev Ahluwalia , Turab Lookman , Avadh Saxena

Elastic constants and mechanical properties play a pivotal role across multiple disciplines and engineering applications. We introduced the optimized high-efficient strain-matrix set (OHESS) that determines the second-order elastic…

材料科学 · 物理学 2023-08-29 Zhong-Li Liu , Ya-Dong Wei , Xiao-Dong Xu , Wei-Qi Li , Gang Lv , Jian-Qun Yang , Xing-Ji Li , Chinedu E. Ekuma

Graph neural networks trained on large crystal structure databases are extremely effective in replacing ab initio calculations in the discovery and characterization of materials. However, crystal structure datasets comprising millions of…

材料科学 · 物理学 2023-03-07 Noah Hoffmann , Jonathan Schmidt , Silvana Botti , Miguel A. L. Marques

In nature, materials such as ferroelastics and multiferroics can switch their microstructure in response to external stimuli, and this reconfiguration causes a simultaneous modulation of its material properties. Rapid prototyping…

应用物理 · 物理学 2018-11-28 Yi Yang , Marcelo A. Dias , Douglas P. Holmes

In this paper, we investigate some micromechanical aspects of elasto-plasticity in heterogeneous geomaterials. The aim is to upscale the elasto-plastic behavior for a representative volume of the material which is indeed a very challenging…

计算工程、金融与科学 · 计算机科学 2020-11-25 Mahdad Eghbalian , Mehdi Pouragha , Richard Wan

We show that neural networks trained by evolutionary reinforcement learning can enact efficient molecular self-assembly protocols. Presented with molecular simulation trajectories, networks learn to change temperature and chemical potential…

统计力学 · 物理学 2020-06-01 Stephen Whitelam , Isaac Tamblyn

Continual learning requires models to integrate new classes or domains over time while preserving previously acquired knowledge. Within this paradigm, foundation models often achieve strong performance, but they still remain subject to the…

机器学习 · 计算机科学 2026-02-20 Murat Onur Yildirim , Elif Ceren Gok Yildirim , Joaquin Vanschoren

Materials science has adopted the term of auxetic behavior for structural deformations where stretching in some direction entails lateral widening, rather than lateral shrinking. Most studies, in the last three decades, have explored…

度量几何 · 数学 2017-08-15 Ciprian S. Borcea , Ileana Streinu

Elastic material with its elastic tensor losing minor symmetry is considered impossible without introducing artificially body torque. Here we demonstrate the feasibility of such material by introducing rotational resonance, the amplified…

经典物理 · 物理学 2020-01-08 Hongkuan Zhang , Yi Chen , Xiaoning Liu , Gengkai Hu

The excess free energy functional of classical density functional theory depends upon the type of fluid model, specifically on the choice of (pair) potential, is unknown in general, and is approximated reliably only in special cases. We…

软凝聚态物质 · 物理学 2025-03-12 Stefanie M. Kampa , Florian Sammüller , Matthias Schmidt , Robert Evans

Large language models (LLMs) bear promise as a fast and accurate material modeling paradigm for evaluation, analysis, and design. Their vast number of trainable parameters necessitates a wealth of data to achieve accuracy and mitigate…

机器学习 · 计算机科学 2024-07-04 Ning Liu , Siavash Jafarzadeh , Brian Y. Lattimer , Shuna Ni , Jim Lua , Yue Yu

Ferrogels and magnetoelastomers are composite materials obtained by embedding magnetic particles of mesoscopic size in a crosslinked polymeric matrix. They combine the reversible elastic deformability of polymeric materials with the high…

Recently, deep learning-based algorithms are widely adopted due to the advantage of being able to establish anomaly detection models without or with minimal domain knowledge of the task. Instead, to train the artificial neural network more…

机器学习 · 计算机科学 2023-04-17 YeongHyeon Park

The rise of soft materials and additive manufacturing has provided the feasibility of developing elastomer lattices for various engineering applications. Although earlier attempts have been made to manufacture and test the elastomer…

材料科学 · 物理学 2024-01-17 Yong Pang , Tao Liu