Acta Mechanica Solida Sinica最新文献_第3页

Molecular Dynamics Study on the Wetting Behavior of Kaolinite Surfaces 高岭石表面润湿行为的分子动力学研究

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-02-20 DOI: 10.1007/s10338-026-00719-8

Yun-Li Li, De-Kai Kong, Chikezie Chimere Onyekwena, Qiang Fan, Wen-Ping Wu

{"title":"Molecular Dynamics Study on the Wetting Behavior of Kaolinite Surfaces","authors":"Yun-Li Li, De-Kai Kong, Chikezie Chimere Onyekwena, Qiang Fan, Wen-Ping Wu","doi":"10.1007/s10338-026-00719-8","DOIUrl":"10.1007/s10338-026-00719-8","url":null,"abstract":"<div><p>Kaolinite is a layered silicate clay mineral whose surface wettability plays a crucial role in soil hydrological processes and environmental remediation. In this study, molecular dynamics (MD) simulations are employed to systematically investigate the wetting behavior of water droplets on two representative (001) kaolinite crystal surfaces: the hydrophilic Al–O octahedral surface and the hydrophobic Si–O tetrahedral surface. The analysis includes energy evolution, mean square displacement (MSD), radial distribution function (RDF), quantitative hydrogen-bond statistics, and contact angle measurement of droplet profiles to reveal the underlying wetting mechanisms. Results show that the Al–O surface exhibits complete wetting due to cooperative hydrogen bonding between surface hydroxyl groups and water molecules, whereas the Si–O surface demonstrates significant hydrophobicity. Moreover, droplet size is found to affect interfacial stability and wetting; larger droplets produce more stable and uniform adsorption layers, while the smaller droplets exhibit greater fluctuations and less ordered interfacial water structures, demonstrating significant size-dependent wetting effects. This study not only quantitatively analyzes the hydrophilicity/hydrophobicity of kaolinite surfaces, but also provides microscopic insights into how hydrogen bonding, molecular diffusion, and multilayer adsorption collectively govern interfacial wetting. These findings offer theoretical guidance for understanding clay mineral interfacial hydrology and potential engineering applications.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 10","pages":"1492 - 1506"},"PeriodicalIF":2.6,"publicationDate":"2026-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149222733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coupling Vibration Analysis of Piezoelectric Laminated Rotating Cantilever Pipe Conveying Fluid 压电层状旋转悬臂管输送流体的耦合振动分析

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-02-18 DOI: 10.1007/s10338-026-00703-2

Xueping Chang, Dachao Liu

引用次数: 0

An Integrated Bi-directional Computing Framework for Composite Design Based on Self-Consistent Clustering Analysis and Conditional Generative Adversarial Network (SCA-CGAN) 基于自洽聚类分析和条件生成对抗网络（SCA-CGAN）的复合材料设计集成双向计算框架

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-02-17 DOI: 10.1007/s10338-026-00708-x

Yixin Feng, Wei Luo

{"title":"An Integrated Bi-directional Computing Framework for Composite Design Based on Self-Consistent Clustering Analysis and Conditional Generative Adversarial Network (SCA-CGAN)","authors":"Yixin Feng, Wei Luo","doi":"10.1007/s10338-026-00708-x","DOIUrl":"10.1007/s10338-026-00708-x","url":null,"abstract":"<div><p>Exploring the relationship between the required properties and internal structures has been historically challenging in the development of composite materials. This paper presents an integrated bi-directional computing framework, combining self-consistent clustering analysis (SCA) for forward homogenization and conditional generative adversarial network (CGAN) for inverse structure design. The original SCA method discretizes the original geometry into discrete clusters and solves the Lippman-Schwinger equation for mechanical problems. We have extended the SCA method to solve thermo-elastic, steady thermal conduction and seepage flow problems, enabling rapid, high-fidelity prediction of effective properties from microstructural features. For inverse material design, CGAN directly utilizes the geometric images and homogenized properties generated by the forward homogenization based on SCA as training dataset. Then, the CGAN facilitates inverse design by generating candidate microstructures that meet target Young’s modulus, thermal expansion, thermal conductivity and permeability requirements. This synergy leverages the solving precision of microscopic mechanical models and the generative power of deep learning, enabling bi-directional material design. Glass-fiber-reinforced polypropylene composite materials are taken as the research objects, and the results of inclusion volume fractions and shapes are validated with experiments and the finite element method. The presented framework offers an integrated and robust platform for exploring composites with customized mechanical, thermal and permeability behaviors.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 10","pages":"1449 - 1467"},"PeriodicalIF":2.6,"publicationDate":"2026-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149222727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Probing the Dynamic Heterogeneity of an Amorphous Alloy from the Perspective of Stress Relaxation 从应力松弛的角度探讨非晶合金的动态非均匀性

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-02-16 DOI: 10.1007/s10338-026-00715-y

X. L. Ning, Q. Hao, L. T. Zhang, Y. J. Wang, E. Pineda, E. S. Park, J. C. Qiao

{"title":"Probing the Dynamic Heterogeneity of an Amorphous Alloy from the Perspective of Stress Relaxation","authors":"X. L. Ning, Q. Hao, L. T. Zhang, Y. J. Wang, E. Pineda, E. S. Park, J. C. Qiao","doi":"10.1007/s10338-026-00715-y","DOIUrl":"10.1007/s10338-026-00715-y","url":null,"abstract":"<div><p>Stress relaxation experiments on a Zr<sub>50</sub>Cu<sub>34</sub>Ag<sub>8</sub>Al<sub>8</sub> amorphous alloy reveal that its dynamic heterogeneity is captured by a Kohlrausch–Williams–Watts stretched exponential function, demonstrating a non-Gaussian, asymmetric relaxation spectrum. The analysis based on the generalized Maxwell model revealed that the relaxation process is accelerated at high temperatures, indicating that increasing temperature makes more deformation units and promotes the formation of “liquid-like” zones. <span>({beta }_{text{KWW}})</span> exhibits a non-monotonous trend with temperature due to the combined effects of temperature and structural relaxation. Physical aging improves structural stability by shifting the activation energy distribution toward higher values for increasing aging times. This results in a system energetic state closer to equilibrium, lowering the overall energy level and suppressing the relaxation process. Notably, it is found that the dynamic heterogeneity does not decrease but instead increases with aging. These findings provide significant insights into the structural origins of the viscoelastic behavior of amorphous alloys.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 10","pages":"1482 - 1491"},"PeriodicalIF":2.6,"publicationDate":"2026-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149222732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel Functionally Graded Warp-and-Woof Auxetic Lattices with Enhanced Negative Poisson’s Ratio and Superior Energy Absorption 具有增强负泊松比和优越能量吸收的新型功能梯度经纬补充晶格

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-02-12 DOI: 10.1007/s10338-026-00702-3

Mohsen Safikhani Nasim, Amin Yaghootian, Reza Mosalmani

{"title":"Novel Functionally Graded Warp-and-Woof Auxetic Lattices with Enhanced Negative Poisson’s Ratio and Superior Energy Absorption","authors":"Mohsen Safikhani Nasim, Amin Yaghootian, Reza Mosalmani","doi":"10.1007/s10338-026-00702-3","DOIUrl":"10.1007/s10338-026-00702-3","url":null,"abstract":"<div>\u0000 \u0000 <p>Functionally graded lattice metamaterials with optimized density distributions have received growing interest in lightweight structures with improved energy absorption and impact mitigation. Auxetic lattices with negative Poisson’s ratios are among such architectures that exhibit unique deformation mechanisms that enhance mechanical performance under compressive loading. Nevertheless, there is a lack of research on the impact of multidirectional functional grading on the optimization of their crushing behavior. This paper investigates the compressive behavior of functionally graded warp and woof lattice auxetic structures (WWLASs) by proposing a new strategy of density grading that is bidirectional. Three configurations are considered: non-graded WWLAS (NGWWLAS), unidirectionally graded WWLAS (UGWWLAS), and bidirectionally graded WWLAS (BGWWLAS). Quasi-static compression experiments up to 65% strain were conducted and supported by validated finite element simulations, showing very good agreement with the experimental results (error less than 3%). The findings indicate the mechanisms of deformation that are grading-dependent. The BGWWLAS exhibits a stable and symmetrical central collapse mode, with a remarkably large negative Poisson’s ratio with a maximum of <i>ν</i> = −5.56 at strains less than 1%. In addition, the bidirectionally graded design has a high level of energy absorption, resulting in a 15–28% improvement compared with NGWWLAS and UGWWLAS. The results emphasize the effectiveness of bidirectional functional grading as an efficient design methodology for advanced auxetic lattices with much higher energy absorption and impact-mitigation properties.</p>\u0000 </div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 10","pages":"1401 - 1415"},"PeriodicalIF":2.6,"publicationDate":"2026-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149222734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the Chemical Short-Range Order and Its Effect on Displacement Cascade in Non-equiatomic NiCoCr Medium-Entropy Alloys 非等原子NiCoCr中熵合金化学短程有序及其对位移级联影响的研究

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-02-10 DOI: 10.1007/s10338-026-00710-3

Yuzhou Liang, Wang Liu, Hao Yang, Chuanlong Xu, Haidong Fan

{"title":"Study on the Chemical Short-Range Order and Its Effect on Displacement Cascade in Non-equiatomic NiCoCr Medium-Entropy Alloys","authors":"Yuzhou Liang, Wang Liu, Hao Yang, Chuanlong Xu, Haidong Fan","doi":"10.1007/s10338-026-00710-3","DOIUrl":"10.1007/s10338-026-00710-3","url":null,"abstract":"<div><p>Chemical short-range order (CSRO) structures are important features in medium-/high-entropy alloys (M/HEAs) and significantly influence their mechanical properties under irradiation. In this work, molecular dynamics (MD) simulations were employed to investigate the influence of CSRO structures on displacement cascade in non-equiatomic NiCoCr MEAs. Two groups of non-equiatomic MEAs with different compositions were designed. The results show that the CSRO structures separate into Ni-rich regions and the Co-Cr regions, which play different roles during point defect evolution. Formation energy and migration energy barriers of point defects were calculated to explain these differences. The Ni-rich regions suppress point defect formation due to their higher formation energy, whereas the Co-Cr regions promote point defect recombination due to their lower migration energy barrier. By adjusting elemental content, the degree of Ni-rich and Co-Cr regions can be varied, thereby altering their effects on point defect evolution. This work aims to provide theoretical support for optimizing mechanical properties through the regulation of CSRO structures and compositional adjustments in M/HEAs under irradiation.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 6","pages":"832 - 842"},"PeriodicalIF":2.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148285446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical Simulation of Particle-Reinforced Composites Based on Viscoelastic VCFEM 基于粘弹性VCFEM的颗粒增强复合材料数值模拟

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-02-09 DOI: 10.1007/s10338-026-00705-0

Weijing Wu, Haiyang Li, Zhibin Shen, Jixian Huan

引用次数: 0

Coupled Thermo-poro-mechanical Nonlinear Dynamics of Functionally Graded Saturated Porous Plates on Elastic Foundations 弹性地基上功能梯度饱和多孔板的热-孔-力耦合非线性动力学

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-01-29 DOI: 10.1007/s10338-025-00694-6

Van-Long Nguyen, Minh-Tu Tran, Duc-Kien Thai

{"title":"Coupled Thermo-poro-mechanical Nonlinear Dynamics of Functionally Graded Saturated Porous Plates on Elastic Foundations","authors":"Van-Long Nguyen, Minh-Tu Tran, Duc-Kien Thai","doi":"10.1007/s10338-025-00694-6","DOIUrl":"10.1007/s10338-025-00694-6","url":null,"abstract":"<div>\u0000 \u0000 <p>Functionally graded saturated porous (FGSP) plates are increasingly employed in aerospace, marine, and energy systems where components are simultaneously exposed to mechanical loading, elevated temperatures, and fluid–structure interaction. This study investigates the coupled thermo-poro-mechanical nonlinear dynamic behavior of FGSP plates resting on a Pasternak elastic foundation, aiming to address the lack of analytical frameworks capable of capturing combined thermal fields, pore-fluid effects, and geometric nonlinearity in such layered structures. The governing equations are derived using Reddy’s third-order shear deformation theory (TSDT) and the Rayleigh–Ritz energy method, while Biot’s poro-elasticity theory is incorporated to represent fluid pressure in undrained pores. Nonlinear temperature gradients through the thickness are obtained from steady-state heat conduction, and von Kármán’s assumptions are adopted to account for large deflections. The nonlinear dynamic response is evaluated using the Newmark time integration scheme with Newton–Raphson iterations. Parametric studies reveal that pore-fluid pressure, temperature rise, and foundation stiffness significantly alter dynamic stiffness and resonance characteristics, and that boundary conditions strongly govern this sensitivity. The results provide new insights into the coupled thermo-poro-mechanical behavior of FGP structures, serving as a valuable reference for engineering applications in extreme environments.</p>\u0000 </div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 9","pages":"1335 - 1356"},"PeriodicalIF":2.6,"publicationDate":"2026-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149014577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Shear-Lag Model for the Pullout Behavior of Pre-twisted Straight Fibers and Its Application in the Toughening Analysis of Twisted Fiber-Reinforced Composites 预扭直纤维拉拔行为的剪切滞后模型及其在扭转纤维增强复合材料增韧分析中的应用

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-01-26 DOI: 10.1007/s10338-025-00692-8

Jiajun Dong, Shiyang Liu, Xiaofei Wang, Qinghua Qin, Jianshan Wang

{"title":"A Shear-Lag Model for the Pullout Behavior of Pre-twisted Straight Fibers and Its Application in the Toughening Analysis of Twisted Fiber-Reinforced Composites","authors":"Jiajun Dong, Shiyang Liu, Xiaofei Wang, Qinghua Qin, Jianshan Wang","doi":"10.1007/s10338-025-00692-8","DOIUrl":"10.1007/s10338-025-00692-8","url":null,"abstract":"<div>\u0000 \u0000 <p>The pre-twisted straight fiber exhibits exceptional mechanical properties, including high tensile stiffness and remarkable flexibility. In applications such as artificial muscles and fiber-reinforced composites, these fibers are typically embedded in an elastic matrix, functioning as key reinforcing or deformation-driven structural components. In this study, a shear-lag-based model is developed to describe the pullout behavior of a pre-twisted straight fiber from an elastic matrix, incorporating geometric nonlinearity and tension–twist coupling induced by large pre-twist angles. Based on this model, the stress transfer mechanism between the twisted straight fiber and the surrounding matrix is systematically analyzed. Furthermore, the derived force–displacement relationship during fiber pullout is employed to perform crack-bridging analysis, revealing the toughening mechanisms in twisted fiber-reinforced composites. Results show that pre-twist of fiber introduces distinct tension–twist coupling, which generates hoop interfacial shear stresses and allows the fiber to undergo larger tensile deformation. It leads to greater crack-opening displacements in the bridging zone and a significantly enhanced toughening effect. The present work provides new insights into the stress transfer and toughening mechanisms of twisted fiber-reinforced composites, offering valuable guidance for the design and fabrication of high-performance composite materials.</p>\u0000 </div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 4","pages":"534 - 543"},"PeriodicalIF":2.7,"publicationDate":"2026-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147733131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Axisymmetric Contact Vibration Analysis of One-Dimensional Hexagonal Quasicrystal 一维六边形准晶体轴对称接触振动分析

IF 2.6 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2026-01-23 DOI: 10.1007/s10338-025-00695-5

Jing Jin, Xin Lv, Yuanyuan Ma, Yueting Zhou, Xuefen Zhao, Shenghu Ding

{"title":"Axisymmetric Contact Vibration Analysis of One-Dimensional Hexagonal Quasicrystal","authors":"Jing Jin, Xin Lv, Yuanyuan Ma, Yueting Zhou, Xuefen Zhao, Shenghu Ding","doi":"10.1007/s10338-025-00695-5","DOIUrl":"10.1007/s10338-025-00695-5","url":null,"abstract":"<div>\u0000 \u0000 <p>The dynamic stability and durability of quasicrystal materials (QCMs) hinge on their corresponding contact vibration analysis. This study examines the axisymmetric vibrational characteristics induced by a one-dimensional hexagonal quasicrystal semi-infinite medium subjected to a rigid spherical indenter. By employing perturbation techniques combined with the Hankel transforms, this study determines the pressure distribution and displacement field during dynamic contact and establishes the dynamic contact stiffness (DCS) formulation under two different displacement boundary conditions. The numerical section presents the effects of various factors, including vibration frequency, displacement constraints, internal friction coefficient, phason field, and material elastic properties on the DCS behavior. The findings demonstrate that the phason field significantly decreases the stiffness characteristics of the one-dimensional hexagonal quasicrystal material and accelerates energy dissipation. The phonon field's elastic properties exert a greater influence on dynamic contact behavior compared to those associated with the phason field. The results obtained from this investigation make contributions towards unveiling the mechanisms of vibration transmission and energy dissipation at the contact interface of quasicrystal structures.</p>\u0000 </div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"39 10","pages":"1369 - 1385"},"PeriodicalIF":2.6,"publicationDate":"2026-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149222736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0