Acta Mechanica Solida Sinica最新文献_第2页

Improving Comprehensive Properties of Aluminum Conductor via Hierarchical Compositions and Microstructures 通过分层成分和微观结构改善铝导体综合性能

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-02-27 DOI: 10.1007/s10338-025-00591-y

S. L. Cai, S. Wu, G. Ding, Y. Liu, J. Gu, L. H. Dai, M. Q. Jiang

{"title":"Improving Comprehensive Properties of Aluminum Conductor via Hierarchical Compositions and Microstructures","authors":"S. L. Cai, S. Wu, G. Ding, Y. Liu, J. Gu, L. H. Dai, M. Q. Jiang","doi":"10.1007/s10338-025-00591-y","DOIUrl":"10.1007/s10338-025-00591-y","url":null,"abstract":"<div><p>The development and deployment of aluminum conductor have been significantly hampered by the contradiction of yield strength, uniform elongation, and electrical conductivity. Herein, we successfully fabricated a pure aluminum (Al) clad aluminum alloy (AA) rod with hierarchical compositions and microstructures. The proposed pure Al clad AA rod showcases an optimized combination of yield strength, uniform elongation, and electrical conductivity, i.e., easing the restriction on improving yield strength, uniform elongation, and electrical conductivity. Compared to existing experiments, uniform elongation improved fourfold, while yield strength increased by 13% and electrical conductivity improved by 2% in terms of the international annealed copper standard (IACS). Microstructural characterizations and theoretical analyses revealed that the optimal performance of the Al clad AA arose from low-density low-angle grain boundaries (LAGBs) in the outer Al and high-density LAGBs with nanoscale precipitations in the inner AA. Our findings offer a compelling strategy for fabricating high-performance aluminum conductors, thereby laying a solid technical foundation for their wide application in power delivery systems.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"38 5","pages":"884 - 896"},"PeriodicalIF":2.7,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230231","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

Compression-Twist Coupling Mechanical Metamaterials with Programmed Bistability 具有程序双稳定性的压缩-扭转耦合机械超材料

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-02-24 DOI: 10.1007/s10338-025-00583-y

Zhuxuan Wei, Yi Wu, Huinan Lai, Jin Qian

{"title":"Compression-Twist Coupling Mechanical Metamaterials with Programmed Bistability","authors":"Zhuxuan Wei, Yi Wu, Huinan Lai, Jin Qian","doi":"10.1007/s10338-025-00583-y","DOIUrl":"10.1007/s10338-025-00583-y","url":null,"abstract":"<div><p>Mechanical metamaterials are artificial materials that control their macroscopic properties using repetitive units rather than chemical constituents. Through rational design and spatial arrangement of the unit cells, mechanical metamaterials can realize a range of counterintuitive properties on a larger scale. In this work, a type of mechanical metamaterial unit cell is proposed, exhibiting both compression-twist coupling behavior and bistability that can be programmed. The design involves linking two cylindrical frames with topology-designed inclined beams. Under uniaxial loading, the structure undergoes a compression-twist deformation, along with buckling at two joints of the inclined beams. Through a rational design of the unit's geometric parameters, the structure can retain its deformed state once the applied displacement surpasses a specified threshold, showing a programmed bistable characteristic. We investigated the influence of the involved parameters on the mechanical response of the unit cells numerically, which agrees well with our experimental results. Since the inclined beams dominate the elastic deformation of unit cells, the two cylindrical frames are almost independent of the bistable response and can therefore be designed in any shape for various arrangements of unit cells in multi-dimensional space.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"38 5","pages":"834 - 842"},"PeriodicalIF":2.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230460","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

Wrinkling Behavior of the Solid-Electrolyte Interphase in Li-Ion Batteries with Silicon-Graphite Composite Electrodes 硅-石墨复合电极锂离子电池固-电解质界面的起皱行为

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-02-20 DOI: 10.1007/s10338-024-00579-0

Xinghan Qiu, Haocong Li, Huifeng Tan, Changguo Wang, Yuanpeng Liu

{"title":"Wrinkling Behavior of the Solid-Electrolyte Interphase in Li-Ion Batteries with Silicon-Graphite Composite Electrodes","authors":"Xinghan Qiu, Haocong Li, Huifeng Tan, Changguo Wang, Yuanpeng Liu","doi":"10.1007/s10338-024-00579-0","DOIUrl":"10.1007/s10338-024-00579-0","url":null,"abstract":"<div><p>The silicon-graphite (Si–C) composite electrode is considered a promising candidate for next-generation commercial electrodes due to its high capacity. However, lithium-ion batteries with silicon electrodes often experience capacity fading and poor cyclic performance, primarily due to the mechanical degradation of the solid-electrolyte interphase (SEI). In this work, we present a homogenized constitutive model for Si–C composite electrodes under finite deformation, incorporating lithium-ion concentration-dependent properties. We perform a wrinkling analysis and systematically examine the influence of key parameters, such as modulus and thickness ratios, on the critical conditions for instability. Additionally, we investigate the ratcheting effect across varying silicon contents. Our findings reveal that maintaining the silicon content within an optimal range effectively reduces plastic accumulation during charge–discharge cycles. These insights provide crucial guidance for optimizing the design and fabrication of Si–C electrode systems, enhancing their durability and performance.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"38 3","pages":"492 - 499"},"PeriodicalIF":2.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145167507","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

Dynamic Loading for Fiber Pullout Interface Strength of 3D-Printed Continuous Carbon Fiber Composites 3d打印连续碳纤维复合材料纤维拉拔界面强度的动态加载

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-02-20 DOI: 10.1007/s10338-025-00593-w

Guo Wang, Jianpin Yin, Daxin Zhang, Qihao Li, Yilun Hu, Zhuzhen Fan, Lanting Liu, Yinggang Miao, Zhongbin Tang

{"title":"Dynamic Loading for Fiber Pullout Interface Strength of 3D-Printed Continuous Carbon Fiber Composites","authors":"Guo Wang, Jianpin Yin, Daxin Zhang, Qihao Li, Yilun Hu, Zhuzhen Fan, Lanting Liu, Yinggang Miao, Zhongbin Tang","doi":"10.1007/s10338-025-00593-w","DOIUrl":"10.1007/s10338-025-00593-w","url":null,"abstract":"<div><p>3D printing has emerged as an advanced manufacturing technique for carbon fiber reinforced composites and relevant structures that endure significant dynamic loads in engineering applications. The dynamic behavior of these materials, primarily influenced by the dynamic fiber pullout interface strength necessitates investigation into the rate-dependent fiber/matrix interfacial strength. This study modifies a Hopkinson tension bar to conduct dynamic pullout tests on a single fiber bundle, utilizing a low-impedance bar and an in-situ calibrated semiconductor strain gauge to capture weak stress signals. Stress equilibrium analyses are performed to validate the transient dynamic loading on single fiber bundle specimens. The results reveal that the fiber/matrix interfacial strength is rate-dependent, increasing with the loading rate, while remaining unaffected by the embedded length. Fracture microstructural analyses show minimal fiber pullout due to high interfacial stresses induced by longer embedded lengths. Lastly, suggestions are made for the efficient design of fiber pullout experiments.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"38 5","pages":"897 - 906"},"PeriodicalIF":2.7,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230306","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

Homoclinic Chaos Suppression of Fiber-Reinforced Composite Hyperelastic Cylindrical Shells 纤维增强复合材料超弹性圆柱壳的同斜混沌抑制

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-02-15 DOI: 10.1007/s10338-024-00522-3

Ran Wang, Xuegang Yuan, Bo Zhu, Yishuo Ai, Na Lv

{"title":"Homoclinic Chaos Suppression of Fiber-Reinforced Composite Hyperelastic Cylindrical Shells","authors":"Ran Wang, Xuegang Yuan, Bo Zhu, Yishuo Ai, Na Lv","doi":"10.1007/s10338-024-00522-3","DOIUrl":"10.1007/s10338-024-00522-3","url":null,"abstract":"<div><p>The propagation of solitary waves in fiber-reinforced hyperelastic cylindrical shells holds tremendous potential for structural health monitoring. However, solitary waves under external forces are unstable, and may break then cause chaos in severe cases. In this paper, the stability of solitary waves and chaos suppression in fiber-reinforced compressible hyperelastic cylindrical shells are investigated, and sufficient conditions for chaos generation as well as chaos suppression in cylindrical shells are provided. Under the radial periodic load and structural damping, the traveling wave equation describing the single radial symmetric motion of the cylindrical shell is obtained by using the variational principle and traveling wave method. By employing the bifurcation theory of dynamical systems, the parameter space for the appearance of peak solitary waves, valley solitary waves, and periodic waves in an undisturbed system is determined. The sufficient conditions for chaos generation are derived by the Melnikov method. It is found that the disturbed system leads to chaotic motions in the form of period-doubling bifurcation. Furthermore, a second weak periodic disturbance is applied as the non-feedback control input to suppress chaos, and the initial phase difference serves as the control parameter. According to the Melnikov function, the sufficient conditions for the second excitation amplitude and initial phase difference to suppress chaos are determined. The chaotic motions can be successfully converted to some regular motions by weak periodic perturbations. The results of theoretical analyses are compared with numerical simulation, and they are in good agreement. This paper extends the research scope of nonlinear elastic dynamics, and provides a strategy for controlling chaotic responses of hyperelastic structures.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"38 4","pages":"677 - 688"},"PeriodicalIF":2.7,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144923153","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

Spherical Indentation on a Piezoelectric Semiconductor Film/Elastic Substrate System 压电半导体薄膜/弹性基板系统的球形压痕

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-02-15 DOI: 10.1007/s10338-025-00588-7

Shijing Gao, Guoquan Nie, Jinxi Liu, Weiqiu Chen

引用次数: 0

A Cyclic Elastoplastic Constitutive Model Based on Dissipative Plastic Energy 基于耗散塑性能的循环弹塑性本构模型

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-02-12 DOI: 10.1007/s10338-024-00575-4

Wenjie Zhao, Xuehong Ren, Jiujian Wang, Shaopu Yang

引用次数: 0

Mechanics of Flexible Lithium-Ion Batteries: Structural Design and Characterization 柔性锂离子电池的力学：结构设计与表征

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-02-07 DOI: 10.1007/s10338-024-00567-4

Ziniu Liu, Xinran Li, Yinhua Bao

引用次数: 0

Experimental Study on Strain Transfer Behavior of Graphene and Black Phosphorus Heterostructure on Flexible Substrate 石墨烯和黑磷异质结构在柔性衬底上应变传递行为的实验研究

IF 2 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-02-07 DOI: 10.1007/s10338-025-00590-z

Rubing Li, Miaojing Wang, Huadan Xing, Mingyuan Sun, Haimei Xie, Wei Qiu

{"title":"Experimental Study on Strain Transfer Behavior of Graphene and Black Phosphorus Heterostructure on Flexible Substrate","authors":"Rubing Li, Miaojing Wang, Huadan Xing, Mingyuan Sun, Haimei Xie, Wei Qiu","doi":"10.1007/s10338-025-00590-z","DOIUrl":"10.1007/s10338-025-00590-z","url":null,"abstract":"<div><p>The strain transfer behavior of graphene and black phosphorus heterostructure on flexible substrates plays a crucial role in the functionality and regulation of the device. Specifically, it is imperative to investigate the anisotropy associated with strain transfer at the black phosphorus interface. In this study, a sample transfer method was proposed to prevent the contact of black phosphorus with water, achieving monolayer graphene and few-layer black phosphorus heterostructures on a PET film substrate. Micro-Raman spectroscopy was used to measure the strain of graphene and black phosphorus when the PET film substrate was under uniaxial tensile loading along the zigzag and armchair directions of black phosphorus, respectively. The Raman shift-strain relationship of black phosphorus was derived, and an interface transfer model was developed for the heterostructure. Based on the model, the strain transfer efficiency of each measuring spot was calculated and the strain transfer mechanism of each layer was analyzed. The results uncover the influence of the anisotropic interlayer properties inside the black phosphorus on the strain transfer behavior in the heterostructure on the flexible substrate.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"38 2","pages":"309 - 319"},"PeriodicalIF":2.0,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786433","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

Understanding the Layered Silicon/Graphite Composite Electrode Design from the Perspective of Porosity Evolution 从孔隙演化的角度理解层状硅/石墨复合电极设计

IF 2.7 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2025-02-05 DOI: 10.1007/s10338-025-00589-6

Shanwei Wang, Bo Lu, Junqian Zhang

{"title":"Understanding the Layered Silicon/Graphite Composite Electrode Design from the Perspective of Porosity Evolution","authors":"Shanwei Wang, Bo Lu, Junqian Zhang","doi":"10.1007/s10338-025-00589-6","DOIUrl":"10.1007/s10338-025-00589-6","url":null,"abstract":"<div><p>The recently reported silicon/graphite (Si/Gr) composite electrode with a layered structure is a promising approach to achieve high capacity and stable cycling of Si-based electrodes in lithium-ion batteries. However, there is still a need to clarify why particular layered structures are effective and why others are ineffective or even detrimental. In this work, an unreported mechanism dominated by the porosity evolution of electrodes is proposed for the degradation behavior of layered Si/Gr electrodes. First, the effect of layering sequence on the overall electrode performance is investigated experimentally, and the results suggest that the cycling performance of the silicon-on-graphite (SG) electrode is much superior to that of the graphite-on-silicon electrode. To explain this phenomenon, a coupled mechanical–electrochemical porous electrode model is developed, in which the porosity is affected by the silicon expansion and the local constraints. The modeling results suggest that the weaker constraint of the silicon layer in the SG electrode leads to a more insignificant decrease in porosity, and consequently, the more stable cycling performance. The findings of this work provide new insights into the structural design of Si-based electrodes.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"38 3","pages":"470 - 482"},"PeriodicalIF":2.7,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162200","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