Acta Mechanica Solida Sinica最新文献_第8页

Analytical and Numerical Investigation on the Penetration Resistance of PUE/Honeycomb Aluminum Composite Structures PUE/Honeycomb 铝复合材料结构的抗穿透性分析和数值研究

IF 2 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2024-04-04 DOI: 10.1007/s10338-024-00477-5

Guangping Zou, Yue Yang, Zhongliang Chang, Songyang Wu, Xuan Wang

{"title":"Analytical and Numerical Investigation on the Penetration Resistance of PUE/Honeycomb Aluminum Composite Structures","authors":"Guangping Zou, Yue Yang, Zhongliang Chang, Songyang Wu, Xuan Wang","doi":"10.1007/s10338-024-00477-5","DOIUrl":"10.1007/s10338-024-00477-5","url":null,"abstract":"<div><p>In this study, the penetration resistance of a polyurethane elastomer (PUE)/honeycomb aluminum composite structure was investigated. A finite element analysis model was constructed to predict the residual velocity of the projectile after penetrating the PUE/honeycomb aluminum composite structure, and the accuracy of the model was verified through experiments. Both the residual velocity of the projectile and the failure appearance of the target plate were accurately predicted by the model. In addition, the Cowper–Symonds model was used to describe the material properties of the PUE layer, effectively simulating the damage appearance of the PUE layer after penetration. Subsequently, based on the validated model, three different configurations of the PUE/honeycomb aluminum composite structure were designed on the basis of the original honeycomb aluminum composite structure with a polyurethane elastomer coating, maintaining constant mass of the composite structure, and the ballistic performance was predicted using the finite element model. The anti-penetration performance of the PUE/honeycomb aluminum composite structure was analyzed by examining the velocity changes of the projectile, the energy changes of each component, and the crushing of the honeycomb core layer. Finally, the influence of different projectile shapes on the ultimate ballistic performance of the structure was studied, and the reasons for the influence of warhead shape on the appearance of target plate failure were analyzed.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"37 5","pages":"771 - 785"},"PeriodicalIF":2.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10338-024-00477-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140590936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Domain Engineering the Flexoelectric Response of BaTiO3–SrTiO3 Binary Films: A Phase Field Study BaTiO3-SrTiO3 二元薄膜的柔电响应领域工程：相场研究

IF 2 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2024-04-03 DOI: 10.1007/s10338-024-00471-x

Junyu Tao, Fan Zhang, Jianyuan Zhang, Weijin Chen, Yue Zheng

引用次数: 0

A Constitutive Model for Softening Behaviors of Skin Tissue 皮肤组织软化行为的构造模型

IF 2 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2024-03-25 DOI: 10.1007/s10338-024-00474-8

Zhonghui Yuan, Zheng Zhong

引用次数: 0

Giant Flexoelectric Effect in Snapping Surfaces Enhanced by Graded Stiffness 通过梯度刚度增强啪啪声表面的巨挠电效应

IF 2 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2024-03-25 DOI: 10.1007/s10338-024-00475-7

Chuo Zhao

{"title":"Giant Flexoelectric Effect in Snapping Surfaces Enhanced by Graded Stiffness","authors":"Chuo Zhao","doi":"10.1007/s10338-024-00475-7","DOIUrl":"10.1007/s10338-024-00475-7","url":null,"abstract":"<div><p>Flexoelectricity is present in nonuniformly deformed dielectric materials and has size-dependent properties, making it useful for microelectromechanical systems. Flexoelectricity is small compared to piezoelectricity; therefore, producing a large-scale flexoelectric effect is of great interest. In this paper, we explore a way to enhance the flexoelectric effect by utilizing the snap-through instability and a stiffness gradient present along the length of a curved dielectric plate. To analyze the effect of stiffness profiles on the plate, we employ numerical parameter continuation. Our analysis reveals a nonlinear relationship between the effective electromechanical coupling coefficient and the gradient of Young’s modulus. Moreover, we demonstrate that the quadratic profile is more advantageous than the linear profile. For a dielectric plate with a quadratic profile and a modulus gradient of − 0.9, the effective coefficient can reach as high as 15.74 pC/N, which is over three times the conventional coupling coefficient of piezoelectric material. This paper contributes to our understanding of the amplification of flexoelectric effects by harnessing snapping surfaces and stiffness gradient design.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"37 4","pages":"528 - 540"},"PeriodicalIF":2.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10338-024-00475-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140300289","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of Vibrational Properties of Horn-Shaped Magneto-Elastic Single-Walled Carbon Nanotube Mass Sensor Conveying Pulsating Viscous Fluid Using Haar Wavelet Technique 利用哈小波技术分析输送脉动粘性流体的喇叭形磁弹性单壁碳纳米管质量传感器的振动特性

IF 2 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2024-03-25 DOI: 10.1007/s10338-023-00457-1

M. Mahaveer Sree Jayan, Lifeng Wang, R. Selvamani, N. Ramya

{"title":"Analysis of Vibrational Properties of Horn-Shaped Magneto-Elastic Single-Walled Carbon Nanotube Mass Sensor Conveying Pulsating Viscous Fluid Using Haar Wavelet Technique","authors":"M. Mahaveer Sree Jayan, Lifeng Wang, R. Selvamani, N. Ramya","doi":"10.1007/s10338-023-00457-1","DOIUrl":"10.1007/s10338-023-00457-1","url":null,"abstract":"<div><p>This research explores the dynamic behaviour of horn-shaped single-walled carbon nanotubes (HS-SWCNTs) conveying viscous nanofluid with pulsating the influence of a longitudinal magnetic field. The analysis utilizes Euler–Bernoulli beam model, considering the variable cross section, and incorporating Eringen’s nonlocal theory to formulate the governing partial differential equation of motion. The instability domain of HS-SWCNTs is estimated using Galerkin’s approach. Numerical analysis is performed using the Haar wavelet method. The critical buckling load obtained in this study is compared with previous research to validate the proposed model. The results highlight the effectiveness of the proposed model in assessing the vibrational characteristics of a complex multi-physics system involving HS-SWCNTs. Dispersion graphs and tables are presented to visualize the numerical findings pertaining to various system parameters, including the nonlocal parameter, magnetic flux, Knudsen number, and viscous factor.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"37 5","pages":"685 - 699"},"PeriodicalIF":2.0,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140300290","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

Pullout of the Cylindrical Helicoidal Fiber 圆柱螺旋形光纤的拉出

IF 2 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2024-03-19 DOI: 10.1007/s10338-024-00470-y

Chenhan Hu, Weihao Tao, Hongjun Yu, Qinghua Qin, Jianshan Wang

引用次数: 0

Isogeometric Analysis for the Arbitrary AFG Microbeam with Two-Phase Nonlocal Stress-Driven Model 利用两相非局部应力驱动模型对任意 AFG 微梁进行等距分析

IF 2 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2024-03-18 DOI: 10.1007/s10338-024-00467-7

Pei-Liang Bian, Zhaowei Liu, Hai Qing, Tiantang Yu

引用次数: 0

Probabilistic Fatigue Life Framework of Notched Specimens Based on the Weibull Distribution Under Multiaxial Loading 多轴载荷下基于威布尔分布的缺口试样疲劳寿命概率框架

IF 2 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2024-03-14 DOI: 10.1007/s10338-024-00472-w

Jie Wang, Jianhui Liu, Jumei Lu, Yingbao He, Xuemei Pan, Ziyang Zhang

{"title":"Probabilistic Fatigue Life Framework of Notched Specimens Based on the Weibull Distribution Under Multiaxial Loading","authors":"Jie Wang, Jianhui Liu, Jumei Lu, Yingbao He, Xuemei Pan, Ziyang Zhang","doi":"10.1007/s10338-024-00472-w","DOIUrl":"10.1007/s10338-024-00472-w","url":null,"abstract":"<div><p>In engineering applications, the notch effect and size effect significantly influence the evaluation of fatigue performance in components, necessitating special attention in life prediction. This study proposes a new probabilistic model, based on the theory of critical distance (TCD), to predict fatigue life, with the aim of quantitatively assessing the impact of notch effect and size effect. The stress distribution on the critical plane is first characterized using a sixth-order multinomial function, and the relative stress gradient function is utilized to calculate the value of the critical distance. Furthermore, the effect of the ratio of shear strain to normal strain on fatigue life under multiaxial loading is considered. Additionally, the integration of the Weibull distribution into the TCD is employed for conducting probabilistic modeling of fatigue life. Finally, fatigue experiments are conducted on notched specimens of Q355D steel, demonstrating that the life prediction results under 50% survival probability are superior to the traditional TCD method.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"37 5","pages":"673 - 684"},"PeriodicalIF":2.0,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140156942","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

Micromechanics of Thermal Conductive Composites: Review, Developments and Applications 导热复合材料的微观力学：回顾、发展与应用

IF 2 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2024-03-12 DOI: 10.1007/s10338-024-00469-5

Guannan Wang, Yulin Huang, Mengyuan Gao, Qiang Chen

{"title":"Micromechanics of Thermal Conductive Composites: Review, Developments and Applications","authors":"Guannan Wang, Yulin Huang, Mengyuan Gao, Qiang Chen","doi":"10.1007/s10338-024-00469-5","DOIUrl":"10.1007/s10338-024-00469-5","url":null,"abstract":"<div><p>Micromechanics investigations of composites with fiber-shaped reinforcement are extensively applied in the engineering design and theoretical analysis of thermal composites in the aerospace engineering and high-tech industry. In this paper, a critical review of various classical micromechanics approaches is provided based on the classification framework and the development of micromechanics tools. Several numerical micromechanics tools have been developed to overcome limitations through exactly/approximately solving the internal governing equations of microstructures. The connections and limitations of those models are also investigated and discussed, based on which three recently developed numerical or semi-analytical models are explained, including finite-element micromechanics, finite-volume direct averaging micromechanics, and locally exact homogenization theory, as well as machine learning tools. Since it is almost inevitable to mention the interfacial effects on thermal behavior of fibrous composites, we review the new mathematical relations that interrupt the original continuity conditions due to the existence of interphase/interface within unit cells. Generally speaking, the interphase/interface is demonstrated to play a significant role in influencing the effective coefficients and localized thermal fields. The present work also briefly reviews the application of micromechanics tools in emerging engineered woven composites, natural fibrous composites, and ablative thermal protection composites. It is demonstrated that sophisticated micromechanics tools are always demanded for investigating the effective and localized responses of thermal fibrous composites.</p></div>","PeriodicalId":50892,"journal":{"name":"Acta Mechanica Solida Sinica","volume":"37 2","pages":"215 - 237"},"PeriodicalIF":2.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140126689","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

Phase-Field Modeling of Thermal Fracture and Shear Heating in Rocks with Degraded Thermal Conductivity Across Crack 跨裂缝导热性退化岩石中热断裂和剪切加热的相场建模

IF 2 3区工程技术

Acta Mechanica Solida Sinica Pub Date : 2024-03-11 DOI: 10.1007/s10338-023-00452-6

Tao You, Qizhi Zhu, Weijian Li, Jianfu Shao

引用次数: 0