Composite Structures最新文献_第8页

Explicit topology optimization of multi-material flexoelectric composite structures for energy harvesting 用于能量收集的多材料柔电复合结构的显式拓扑优化

IF 6.3 2区材料科学

Composite Structures Pub Date : 2024-10-01 DOI: 10.1016/j.compstruct.2024.118621

Weisheng Zhang , Xiaoye Yan , Yao Meng , Yuqiao Ye , Chang Liu

{"title":"Explicit topology optimization of multi-material flexoelectric composite structures for energy harvesting","authors":"Weisheng Zhang , Xiaoye Yan , Yao Meng , Yuqiao Ye , Chang Liu","doi":"10.1016/j.compstruct.2024.118621","DOIUrl":"10.1016/j.compstruct.2024.118621","url":null,"abstract":"<div><div>The development of Micro-Electro-Mechanical Systems (MEMS) and portable electronic devices have facilitated the application of energy harvesters in self-powered microelectromechanical devices. This work presents an explicit topology optimization framework for the design of multi-material flexoelectric composite structures. It aims to achieve flexoelectric energy harvesting structures with enhanced energy conversion efficiency by optimizing the distribution of elastic and flexoelectric materials concurrently. The proposed method utilizes a set of groups of moving morphable components (MMC) to characterize the distribution of flexoelectric and elastic materials. The influence of different material overlapping schemes is also investigated in this work. The combination of isogeometric analysis (IGA) and MMC enables an efficient solution of flexoelectric high-order partial differential equations (PDEs). Numerical examples and experiments verify the effectiveness of the proposed method. Compared to other methods, the component-based MMC method not only facilitates the formation of efficient structures, but also directly produces the geometric model required for manufacturing.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"351 ","pages":"Article 118621"},"PeriodicalIF":6.3,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel pre-folded lattice metamaterial for two-stage deformation and variable Poisson’s ratio properties under quasi-static compression 用于准静态压缩下两阶段变形和可变泊松比特性的新型预折叠晶格超材料

IF 6.3 2区材料科学

Composite Structures Pub Date : 2024-09-30 DOI: 10.1016/j.compstruct.2024.118623

Wenyou Zha , Weikai Shi , Yongtao Yao , Yanju Liu

{"title":"Novel pre-folded lattice metamaterial for two-stage deformation and variable Poisson’s ratio properties under quasi-static compression","authors":"Wenyou Zha , Weikai Shi , Yongtao Yao , Yanju Liu","doi":"10.1016/j.compstruct.2024.118623","DOIUrl":"10.1016/j.compstruct.2024.118623","url":null,"abstract":"<div><div>When honeycomb structures are compressed in the axial direction, they are prone to high crushing loads and structural instability. Folded structures with origami ideas can overcome this defect. In this work, a novel pre-folded lattice metamaterial is proposed, with notable energy absorption capacity and vibration isolation properties. The geometry of the structure is described, and a theoretical model of the deformation platform at various stages is established. The compression and energy absorption properties of the structure are evaluated by compression experiments and finite element simulations. The findings indicate that the structure has two smooth and stable platform stages under quasi-static compression. This feature effectively avoids the initial crushing force of compression energy. It possesses a bistable property during the structural deformation process in the first stage. In the meantime, the compression deformation has the characteristic of variable Poisson’s ratio. Furthermore, the vibration modes and vibration isolation capacity of the variable folding angle are investigated as well. Pre-folded lattice metamaterial with 49.1° exhibits the broadest vibration isolation region across the 0–500 Hz spectrum. This work can provide a novel perspective for the integrated design of structural load-bearing and vibration isolation functions.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"351 ","pages":"Article 118623"},"PeriodicalIF":6.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phononic crystal-based acoustic demultiplexer design via bandgap-passband topology optimization 通过带隙-通带拓扑优化设计基于声晶的声学解复用器

IF 6.3 2区材料科学

Composite Structures Pub Date : 2024-09-30 DOI: 10.1016/j.compstruct.2024.118622

Yuhao Bao , Zhiyuan Jia , Qiming Tian , Yangjun Luo , Xiaopeng Zhang , Zhan Kang

{"title":"Phononic crystal-based acoustic demultiplexer design via bandgap-passband topology optimization","authors":"Yuhao Bao , Zhiyuan Jia , Qiming Tian , Yangjun Luo , Xiaopeng Zhang , Zhan Kang","doi":"10.1016/j.compstruct.2024.118622","DOIUrl":"10.1016/j.compstruct.2024.118622","url":null,"abstract":"<div><div>The wave demultiplexer, which selectively transports specific frequencies from incident waves, has garnered considerable interest for its applications across various engineering disciplines. This study introduces a new customizable design method for acoustic demultiplexers based on the topology optimization of phononic crystals (PnCs). To achieve an acoustic demultiplexer capable of filtering multiple frequencies, a topological design model for PnCs that simultaneously considers bandgaps and passbands is proposed. By assembling the optimized PnCs within the structure, the demultiplexer can separate sound waves of different frequencies into distinct output channels. In the optimization model, an objective function based on transmission rates is proposed to determine whether specific frequencies fall within the specified bandgap or passband. To solve this complex topology optimization problem, the Kriging-based material-field series expansion (KG-MFSE) approach is used to describe the material distribution and optimization of PnCs. The designed PnC unit cells can be directly integrated into the demultiplexer without requiring additional space. Based on specified combinations of passbands and bandgaps, different PnCs are designed to realize a programmable acoustic demultiplexer capable of filtering various sound waves. Numerical analyses demonstrate that the constructed acoustic demultiplexer effectively separates the specified frequencies. Finally, experimental validation of the 3D printed acoustic demultiplexer model confirms the effectiveness of the proposed optimization method.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"351 ","pages":"Article 118622"},"PeriodicalIF":6.3,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A two-layered cross-ply laminate model for a single-ply satin woven fabric composite under thermal loads 热负荷下单层缎纹编织物复合材料的双层交叉层压模型

IF 6.3 2区材料科学

Composite Structures Pub Date : 2024-09-30 DOI: 10.1016/j.compstruct.2024.118619

Jungwan Lee , Woo-seop Kim , Jung-soo Kim , Moon-kwang Um , Sang Woo Kim , Jin Woo Yi , Youngseok Oh , Seong Su Kim

引用次数: 0

Examining infrared thermography based approaches to rapid fatigue characterization of additively manufactured compression molded short fiber thermoplastic composites 研究基于红外热成像技术的快速疲劳表征添加式制造压缩成型短纤维热塑性复合材料的方法

IF 6.3 2区材料科学

Composite Structures Pub Date : 2024-09-29 DOI: 10.1016/j.compstruct.2024.118610

P. Pathak , S. Gururaja , V. Kumar , D. Nuttall , A. Mahmoudi , M.M. Khonsari , U. Vaidya

{"title":"Examining infrared thermography based approaches to rapid fatigue characterization of additively manufactured compression molded short fiber thermoplastic composites","authors":"P. Pathak , S. Gururaja , V. Kumar , D. Nuttall , A. Mahmoudi , M.M. Khonsari , U. Vaidya","doi":"10.1016/j.compstruct.2024.118610","DOIUrl":"10.1016/j.compstruct.2024.118610","url":null,"abstract":"<div><div>A novel additive manufacturing (AM) methodology combined with a compression molding (CM) process has been previously developed to optimize the microstructure of short fiber thermoplastic (SFTs) composites with higher fiber alignment and lower porosity, yielding superior stiffness, strength, and structural integrity. The current work examines the efficacy of the ‘passive’ infrared thermography (IRT) techniques for rapid fatigue characterization of SFTs that use the surface temperature evolution during cyclic loading due to self-heating as a fatigue indicator. A comparison of fatigue limits obtained from traditional stress-life (SN) (<span><math><mrow><mo>≈</mo><mn>53</mn><mo>.</mo><mn>1</mn><mtext>%</mtext><msub><mrow><mi>σ</mi></mrow><mrow><mi>u</mi><mi>t</mi><mi>s</mi></mrow></msub></mrow></math></span>) and IRT (<span><math><mrow><mo>≈</mo><mn>54</mn><mo>.</mo><mn>1</mn><mtext>%</mtext><msub><mrow><mi>σ</mi></mrow><mrow><mi>u</mi><mi>t</mi><mi>s</mi></mrow></msub></mrow></math></span>) shows a close match. However, the SN curve required 18 specimens and two weeks of continuous cyclic testing, while IRT used three specimens with 5 h of testing. Thus, the IRT approach provides an accelerated testing framework for rapidly estimating the fatigue limit. Additionally, existing phenomenological approaches to IRT fatigue characterization have been examined.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"351 ","pages":"Article 118610"},"PeriodicalIF":6.3,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A multi-objective optimization approach to design bistable collapsible tubular mast 设计双稳态可折叠管状桅杆的多目标优化方法

IF 6.3 2区材料科学

Composite Structures Pub Date : 2024-09-28 DOI: 10.1016/j.compstruct.2024.118593

Flavia Palmeri, Susanna Laurenzi

{"title":"A multi-objective optimization approach to design bistable collapsible tubular mast","authors":"Flavia Palmeri, Susanna Laurenzi","doi":"10.1016/j.compstruct.2024.118593","DOIUrl":"10.1016/j.compstruct.2024.118593","url":null,"abstract":"<div><div>The collapsible tubular mast (CTM) is a deployable structure made of two omega shaped shells, with each omega composed of three arc segments. In the bistable CTM (Bi-CTM), in addition to the strain energy well associated with the stable deployed state, another strain energy well can be found corresponding to the stable coiled state. The arcs’ geometries influence the existence of the second strain energy well and the associated stable coiled radius, responsible for the boom’s packaging efficiency. Besides packaging efficiency, factors like bending stiffness are also contingent on the geometries of the arcs, leading to significant trade-offs among these metrics. In this work, we propose a multi-objective optimization (MOO) to find optimal compromises that balance these conflicting requirements of a CTM. Particularly, a coupling analytical models and evolutionary algorithms (EA) technique is presented, utilizing and bench-marking various state-of-the-art EAs. The MOO approach gives as output the Pareto front, a set of the non-dominated design points, which showcases different trade-offs solutions tailorable for specific space-applications. Different design points are presented and discussed based on higher-level considerations.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"351 ","pages":"Article 118593"},"PeriodicalIF":6.3,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fatigue delamination damage analysis in composite materials through a rule of mixtures approach 通过混合物法则分析复合材料中的疲劳分层损伤

IF 6.3 2区材料科学

Composite Structures Pub Date : 2024-09-27 DOI: 10.1016/j.compstruct.2024.118613

Alireza Taherzadeh-Fard , Sergio Jiménez , Alejandro Cornejo , Eugenio Oñate , Lucia Gratiela Barbu

{"title":"Fatigue delamination damage analysis in composite materials through a rule of mixtures approach","authors":"Alireza Taherzadeh-Fard , Sergio Jiménez , Alejandro Cornejo , Eugenio Oñate , Lucia Gratiela Barbu","doi":"10.1016/j.compstruct.2024.118613","DOIUrl":"10.1016/j.compstruct.2024.118613","url":null,"abstract":"<div><div>The present study investigates delamination damage initiation and propagation within a homogenization theory of mixtures, using the concept of virtual layers and virtual interfaces. It eliminates spatial discretization of layers, introducing a resultant damage variable to capture structure’s bulk response under both monotonic and cyclic loads. Fatigue-induced deterioration is classified into sub-critical, critical, and over-critical stages based on interfacial stresses. Calibration is conducted employing the widely-available Wöhler curves for each loading mode independently. An advance-in-time strategy is included in the model to enhance the simulation speed. The reliability of the approach is assessed for crack initiation and propagation separately through standard test coupons, showing good correlation with experimental data in mode I, mode II, and mixed-mode loading conditions. Depending on the calibration procedure adopted, the model is applicable to a wide range of stress ratios. In addition, it could be integrated into any standard finite element framework using the desired number of elements through the thickness regardless of the physical amount of layers. This allows easy modification of stacking sequences or the number of layers within the constitutive law without mesh structure changes, facilitating simulation of large-scale composite laminates with minimal accuracy loss and reduced computational costs.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"351 ","pages":"Article 118613"},"PeriodicalIF":6.3,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental characterization of aluminum/polymer/aluminum sandwich structures under various loading rates and temperatures: Establishing a constitutive relationship for LDPE 铝/聚合物/铝夹层结构在不同加载速率和温度下的实验特性：建立低密度聚乙烯的构成关系

IF 6.3 2区材料科学

Composite Structures Pub Date : 2024-09-27 DOI: 10.1016/j.compstruct.2024.118616

A. Bendarma , A. Rusinek , C. Czarnota , T. Jankowiak , R. Bernier , T. Lodygowski

{"title":"Experimental characterization of aluminum/polymer/aluminum sandwich structures under various loading rates and temperatures: Establishing a constitutive relationship for LDPE","authors":"A. Bendarma , A. Rusinek , C. Czarnota , T. Jankowiak , R. Bernier , T. Lodygowski","doi":"10.1016/j.compstruct.2024.118616","DOIUrl":"10.1016/j.compstruct.2024.118616","url":null,"abstract":"<div><div>Composite sandwich structures, for example Alucobond, have appeared as auspicious materials in a diversity of engineering applications due to their lightweight, high strength to weight ratio and thermal insulation properties. Analyzing their mechanical behavior in different loading rates is critical to optimizing their performance. This study inspects the mechanical response of Alucobond sandwich composite structures under dynamic and quasi-static compression loadings. Dynamic compression tests, carried out at high strain rates, and quasi-static compression tests, carried out at lower strain rates and temperatures, were used to predict the behavior of the material under different loading conditions. In addition, the mechanical properties of the low-density polyethylene (LDPE) core layer were characterized under dynamic and quasi-static loading conditions, with varying strain rates and temperatures, leading to the establishment of a constitutive relationship for the LDPE material. The comparative study of Alucobond and LDPE highlights the influence of material composition and loading conditions on the mechanical behavior of the composite sandwich structures.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"351 ","pages":"Article 118616"},"PeriodicalIF":6.3,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-velocity impact (LVI) and compression after impact (CAI) of Double-Double composite laminates 双层复合材料层压板的低速冲击（LVI）和冲击后压缩（CAI）

IF 6.3 2区材料科学

Composite Structures Pub Date : 2024-09-26 DOI: 10.1016/j.compstruct.2024.118615

Peyman Shabani , Lucy Li , Jeremy Laliberte

{"title":"Low-velocity impact (LVI) and compression after impact (CAI) of Double-Double composite laminates","authors":"Peyman Shabani , Lucy Li , Jeremy Laliberte","doi":"10.1016/j.compstruct.2024.118615","DOIUrl":"10.1016/j.compstruct.2024.118615","url":null,"abstract":"<div><div>Tailorability is a key advantage of fiber-reinforced composites over other material systems. While tailoring a single isolated laminate is relatively simple, challenges arise when designing larger integrated components while ensuring compatibility between laminates and avoiding sharp changes in local stiffness. The innovative Double-Double (DD) laminate design method simplifies the optimization and processing of laminates by incorporating 4-ply building blocks consisting of +ϕ, −ϕ, +ψ, and −ψ ply orientations. As a relatively new concept, DD laminate design requires careful assessment to ensure its performance is equivalent to that of conventional designs. The current study compares impact damage tolerance of quadriaxial (QUAD) laminates consisting of 0°, 90°, and ±45° ply orientations with equivalent DD laminates under Low-Velocity Impact (LVI) and Compression After Impact (CAI) loadings. To this end, a validated three-dimensional high-fidelity finite element model capable of capturing fiber breakage, splitting, kinking, as well as matrix cracking and delamination, was used. A computer tool was developed to identify equivalent DD laminates and to find the best stacking sequence for achieving layup homogenization. Three equivalent DD laminates were selected for the [0/45/90/−45]<sub>4s</sub>. The first laminate had an equal in-plane stiffness [A] matrix ([67.5/–22.5/22.5/−67.5]<sub>8T</sub>), the second laminate had an equal flexural stiffness [D] matrix ([64.5/−17/17/−64.5]<sub>8T</sub>), and the third laminate ([65.5/−18.5/18.5/−65.5]<sub>8T</sub>) had a similar [D] matrix while keeping the difference between each element of [A] matrices below 10 %. The results indicate that the QUAD laminates can be replaced by equivalent DD without compromising impact damage tolerance while benefiting from the improved design and manufacturing ease of the DD laminate configuration.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"351 ","pages":"Article 118615"},"PeriodicalIF":6.3,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142425862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Low-velocity impact resistance behaviors of bionic hybrid-helicoidal composite laminates 仿生混合螺旋复合材料层压板的低速抗冲击性能

IF 6.3 2区材料科学

Composite Structures Pub Date : 2024-09-25 DOI: 10.1016/j.compstruct.2024.118614

Yabin Deng , Hongyong Jiang , Yiru Ren

{"title":"Low-velocity impact resistance behaviors of bionic hybrid-helicoidal composite laminates","authors":"Yabin Deng , Hongyong Jiang , Yiru Ren","doi":"10.1016/j.compstruct.2024.118614","DOIUrl":"10.1016/j.compstruct.2024.118614","url":null,"abstract":"<div><div>The exoskeleton of the Homarus americanus lobster feature a hybrid-helicoidal structure of chitin-protein fibers, with distinct helicoidal configurations in the exocuticle and endocuticle, exhibiting strong impact resistance. Taking inspiration from this biological structure, combined with single-helicoidal and double-helicoidal structures, various helicoidal configurations of composite laminates were designed. Both linear and nonlinear helicoidal angles, including sinusoidal and exponential configurations, were considered. The interlaminar and intralaminar damage mode were adopted to simulate material damage initiation and evolution. The effect of helicoidal angles, position, thickness and angle variations of endocuticle on low-velocity impact resistance was analyzed, revealing the damage mechanisms of bio-inspired laminates. The results show that bio-inspired hybrid helicoidal structures with special features could significantly enhance the impact resistance of composites, with laminates featuring sinusoidal-exponential double helicoidal structures showing superior performance. Sinusoidal configurations, being less prone to penetration, are more suitable for the exocuticle. The introduction of double-helicoidal configurations could enhance the toughness and strength of the structure. This studying deepened an understanding of failure mechanisms of bio-inspired helicoidal composite laminates under low-velocity impact and provide a design strategies for developing high-performance, impact-resistant composite materials.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"351 ","pages":"Article 118614"},"PeriodicalIF":6.3,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142359021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0