Composite Structures最新文献_第10页

The effect of loading methods in FEA on the design accuracy of a composite turbine blade

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-01 DOI: 10.1016/j.compstruct.2025.118892

Hak Gu Lee , Daeyong Kwon , Cheol Yoo , Sahuck Oh , Donghwa Chae

{"title":"The effect of loading methods in FEA on the design accuracy of a composite turbine blade","authors":"Hak Gu Lee , Daeyong Kwon , Cheol Yoo , Sahuck Oh , Donghwa Chae","doi":"10.1016/j.compstruct.2025.118892","DOIUrl":"10.1016/j.compstruct.2025.118892","url":null,"abstract":"<div><div>During operation, wind or tidal blades experience pressure on their surface. However, in the design stage, concentrated forces are often applied to their FE models instead of pressure distribution. This discrepancy could lead to inaccurate blade designs, potentially causing structural collapse in practical applications. This study evaluated the effect of different loading methods on the blade design accuracy in FEA. Using a 5 m composite blade model for a 1 MW tidal turbine, pressure distribution on the blade surface was generated as a reference through CFD analysis under its rated velocity condition. Equivalent concentrated loads were calculated at the pitch axis of each blade section, and then applied to the blade’s FE model using three distinct loading methods. By comparing the stresses and failure indices obtained from each loading method with the reference results, this study identified the most effective loading method for replicating real loading conditions. This method involves selecting a primary node at the pitch axis and secondary nodes across the entire blade section and then interconnecting them based on load-distributed coupling. This study highlights the significant impact of loading methods on the design accuracy of a composite turbine blade subjected to both hydrostatic and hydrodynamic pressures.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"356 ","pages":"Article 118892"},"PeriodicalIF":6.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143378","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

Construction of mechanical metamaterials and their extraordinary functions

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-01 DOI: 10.1016/j.compstruct.2025.118872

Jianwen Gu , Wei Zhao , Chengjun Zeng , Liwu Liu , Jinsong Leng , Yanju Liu

{"title":"Construction of mechanical metamaterials and their extraordinary functions","authors":"Jianwen Gu , Wei Zhao , Chengjun Zeng , Liwu Liu , Jinsong Leng , Yanju Liu","doi":"10.1016/j.compstruct.2025.118872","DOIUrl":"10.1016/j.compstruct.2025.118872","url":null,"abstract":"<div><div>Metamaterials are widely studied due to their unconventional properties, which derive primarily from internal artificial structures rather than the properties that make up their substrate. As a kind of metamaterial, mechanical metamaterial refers to materials with special mechanical properties based on geometric microstructures, such as auxetic mechanical behavior, multistable state, adjustable stiffness, etc. Compared with traditional materials, mechanical metamaterials can be designed to achieve a variety of unique physical properties to meet the requirements of various fields. They usually have the characteristics of lightweight, high specific stiffness and strength, controllable Poisson’s ratio designable anisotropy, etc. They can meet the requirements of multiple functions while meeting the load-bearing performance. They can be used as structural support materials, energy absorption materials, noise reduction materials, thermal conductivity materials, and biological materials, and have broad application prospects in aviation, navigation, medicine, and etc. In this work, we reviewed the basic design ideas, deformation mechanism, and mechanical properties of mechanical metamaterials. The design principles and performance analysis methods of shape memory polymers (SMP) are emphasized. he key problems in the design and development of such materials and the future development trend are also discussed.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"356 ","pages":"Article 118872"},"PeriodicalIF":6.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143960","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

Single lap joint (SLJ) fracture assessment of 3D printing composite parts using structured and flat interface definitions: Experimental and numerical study

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-01 DOI: 10.1016/j.compstruct.2024.118788

M.T. Aranda , L. Távara , J. Reinoso , P.P. Camanho

{"title":"Single lap joint (SLJ) fracture assessment of 3D printing composite parts using structured and flat interface definitions: Experimental and numerical study","authors":"M.T. Aranda , L. Távara , J. Reinoso , P.P. Camanho","doi":"10.1016/j.compstruct.2024.118788","DOIUrl":"10.1016/j.compstruct.2024.118788","url":null,"abstract":"<div><div>Additive Layer Manufacturing introduces a new paradigm in terms of interface design, allowing for the reproduction of nature-inspired geometrical patterns. The present investigation employs Fused Deposition Modeling including glass reinforcement materials to manufacture single lap bonded joint (SLJ) specimens including flat and structured interfaces. Four different configuration patterns were fabricated, tested and numerically simulated in order to evaluate the impact of the structured interface on the quasi-static tensile failure of the bonded joints. Numerical FE-based simulations using Cohesive Zone Models along the adhesive layer were performed in order to analyze the stress distribution and the crack progression along the overlap. Current results pinpoint that the incorporation of a structured interface including continuous fibers at the interface region increases the shear strength over 27% in comparison with standard flat interface definitions and delays the initiation and complete joint failure. Both computational and experimental results confirm that SLJs with tooth-shaped (structured) interfaces enhance the structural strength and retard debonding.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"355 ","pages":"Article 118788"},"PeriodicalIF":6.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143003","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

Stress-driven design method for porous maxillofacial prosthesis based on triply periodic minimal surface

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-01 DOI: 10.1016/j.compstruct.2025.118863

Jiasen Gu , Syed Mesum Raza Naqvi , Long Chao , Chen Jiao , Youwen Yang , Muhammad Ali Nasir , Zongjun Tian , Lida Shen , Dongsheng Wang , Huixin Liang

{"title":"Stress-driven design method for porous maxillofacial prosthesis based on triply periodic minimal surface","authors":"Jiasen Gu , Syed Mesum Raza Naqvi , Long Chao , Chen Jiao , Youwen Yang , Muhammad Ali Nasir , Zongjun Tian , Lida Shen , Dongsheng Wang , Huixin Liang","doi":"10.1016/j.compstruct.2025.118863","DOIUrl":"10.1016/j.compstruct.2025.118863","url":null,"abstract":"<div><div>The human mandible exhibits significant variation among individuals, necessitating customised restoration. This study proposes a stress distribution-driven modelling algorithm for gradient triply periodic minimal surface (TPMS) structures, specifically Gyroid-type double TPMS (GTDT) structures. The design process determines stress distribution in the macroscopic repair region through finite element method (FEM) mechanical analysis. In addition, designed structures were fabricated using laser powder bed fusion (LPBF). FEM analysis, mechanical testing, permeability experiments, and <em>in vitro</em> experiments were performed and identified an optimal Iso Value of 1.25 for bone regeneration. The results showed that the structures produced by the stress-driven design method had higher yield strength and more uniform stress distribution and double the strength in three-point bending tests, all at comparable relative density. Compared to the solid structure, the customized prostheses designed for maxillofacial repairs using this method exhibit stress distribution and displacement behaviour more closely aligned with native bone during mastication, thereby enhancing post-operative comfort.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"355 ","pages":"Article 118863"},"PeriodicalIF":6.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143005","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

Failure response of bolt-clamped sandwich containing a hybrid foam core with continuous composite encasement

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-01 DOI: 10.1016/j.compstruct.2025.118869

Jianwei Ren , Han Meng , Wenbo Gao , Xue Li , Daqiao Zhang , Hongwei Zhu , Jian Wu , Bangjie Li , Zhenyu Zhao

{"title":"Failure response of bolt-clamped sandwich containing a hybrid foam core with continuous composite encasement","authors":"Jianwei Ren , Han Meng , Wenbo Gao , Xue Li , Daqiao Zhang , Hongwei Zhu , Jian Wu , Bangjie Li , Zhenyu Zhao","doi":"10.1016/j.compstruct.2025.118869","DOIUrl":"10.1016/j.compstruct.2025.118869","url":null,"abstract":"<div><div>Investigating the failure behaviors and load-bearing performance of bolt-clamped target loaded is crucial for the design of the connection between purposely designed parts to others. The failure response and underlying mechanism within the bolt-clamped sandwich with a continuous composite encasement (CCE) are investigated both experimentally, numerically, and analytically. An analytical model is developed through the competition mechanism between the four potential failure modes, which is also employed to construct a failure mechanism map. The load-bearing capacity and operative failure initiation are determined as a function of geometric dimensions, which include the diameter size and the position of the bolt hole. A combination of analytical calculation and finite element simulation shows that the presence of a CCE component significantly improves the load-bearing capacity of such a sandwich target by at least 59%. And such enhancement effect is governed directly by the combination of the bolt-hole dimensions and the material properties of CCE. Furthermore, the optimal design targeting the superior load-bearing force of bolt-clamped sandwich is presented via the representation of developed failure mechanism maps. In addition, the mechanism map explains the underlying mechanism of the complex failure mode observed in postmortem sandwiches from the perspective of the cumulative damage history of complex failure behavior scenarios. Finally, FE simulation for the large-scale sandwich is implemented to compare the enhancement effect induced by CCE on the dimensional scale of such bolt-clamped sandwiches. The results of this study are valuable for understanding the failure response and load-bearing behavior of bolt-clamped sandwiches and provide technical guidance for the optimal design of the clamping strategy with the desired mechanical properties.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"356 ","pages":"Article 118869"},"PeriodicalIF":6.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143541","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

Tolerance modelling of vibrations of thin functionally graded cylindrical shells

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-01 DOI: 10.1016/j.compstruct.2025.118890

B. Tomczyk , M. Gołąbczak , V. Bagdasaryan

{"title":"Tolerance modelling of vibrations of thin functionally graded cylindrical shells","authors":"B. Tomczyk , M. Gołąbczak , V. Bagdasaryan","doi":"10.1016/j.compstruct.2025.118890","DOIUrl":"10.1016/j.compstruct.2025.118890","url":null,"abstract":"<div><div>The objects of considerations are thin, linearly elastic, Kirchhoff-Love-type, open, circular, cylindrical shells having a functionally graded macrostructure and a tolerance-periodic microstructure in circumferential direction. At the same time, the shells have constant geometrical, elastic and inertial properties in axial direction. The aim of this contribution is to investigate the effect of a microstructure size on the transversal free vibration frequencies of such shells. Moreover, the influence of differences between elastic and inertial properties of the constituent materials on these frequencies will be studied. Many functions describing the distribution of material properties will be taken into account. This dynamic problem will be analysed in the framework of a certain mathematical, averaged, non-asymptotic model derived by means of <em>the tolerance modelling procedure</em>. Contrary to the starting exact shell equations with highly oscillating, non-continuous and tolerance-periodic coefficients, governing equations of the tolerance model have continuous and slowly varying coefficients dependent also on a microstructure size. It will be shown that in the framework of the tolerance model not only the fundamental, cell-independent, but also the new, additional, cell-dependent free vibration frequencies can be derived and analysed. The results obtained from the non-asymptotic tolerance model will be compared with those derived from the mathematical, averaged asymptotic model formulated by applying <em>the consistent asymptotic modelling technique</em>. Governing equations of the asymptotic model have continuous and slowly-varying coefficients, but independent of the microstructure size.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"356 ","pages":"Article 118890"},"PeriodicalIF":6.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143550","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

Phase field-peridynamics coupling method for interface mechanical properties of heterogeneous materials: Model and validation

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-01 DOI: 10.1016/j.compstruct.2025.118887

Yongsheng Liu , Haoran Xu , Chengbei He , Jianxin Xia

{"title":"Phase field-peridynamics coupling method for interface mechanical properties of heterogeneous materials: Model and validation","authors":"Yongsheng Liu , Haoran Xu , Chengbei He , Jianxin Xia","doi":"10.1016/j.compstruct.2025.118887","DOIUrl":"10.1016/j.compstruct.2025.118887","url":null,"abstract":"<div><div>The heterogeneous characteristics of composite materials are essential for understanding and predicting their mechanical behavior. Peridynamics (PD), grounded in integral equations, overcomes the singularity at the crack tip in classical continuum mechanics. However, it still lacks a clear theoretical description for handling weak discontinuities at interfaces. As an effective approach to handling interface problems, the phase-field method provides a solution for smooth interface transitions. Therefore, this paper proposes a novel approach that couples interface phase-field with peridynamics (IPF-PD). The interface phase-field order parameter is introduced into the peridynamics model. The approach enables interface diffusion and continuous material mechanical transition within the peridynamics framework. The effectiveness of IPF-PD model is verified through typical cases. The IPF-PD model’s material point discretization shows good convergence referenced to finite element solutions. Displacement field variation is analyzed using digital image correlation (DIC) tests on a bi-material plate under tension. The DIC analysis of bi-material plate shows a linear variation in the displacement field, with linear correlation coefficients of 0.98 and 0.84, respectively. The displacement gradients predicted by the coupling IPF-PD model are consistent with experimental results. Additionally, the accuracy of IPF-PD model in terms of damage mode, crack initiation, and propagation is further validated through a single circular reinforcement tension simulation. The interface detachment angle is simulated at 66.20°, which aligns with the theoretical value, indicating that the IPF-PD coupled model effectively captures the failure characteristics of heterogeneous materials. The interface phase-field and peridynamics (IPF-PD) coupling model offers a new approach to analyzing and predicting the mechanical behavior of heterogeneous materials.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"356 ","pages":"Article 118887"},"PeriodicalIF":6.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143552","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 thermodynamically consistent failure mode dependent continuum damage model with selective damage hardening and deactivation for brittle fiber reinforced composites

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-01 DOI: 10.1016/j.compstruct.2025.118875

Shubham Rai, Badri Prasad Patel

{"title":"A thermodynamically consistent failure mode dependent continuum damage model with selective damage hardening and deactivation for brittle fiber reinforced composites","authors":"Shubham Rai, Badri Prasad Patel","doi":"10.1016/j.compstruct.2025.118875","DOIUrl":"10.1016/j.compstruct.2025.118875","url":null,"abstract":"<div><div>This article proposes a three dimensional thermodynamically consistent failure mode dependent continuum damage model for brittle fiber reinforced composite laminates. The novelty also includes the use of selective damage hardening functions, damage model parameters characterization based on all experimental uniaxial/shear stress–strain curves, failure mode switching, and selective damage deactivation algorithms to handle numerical convergence issues due to resulting non-smoothness and non-convexity. The characterized damage evolution equations are used for damage prediction of laminated composite panels using the finite element method coupled with Newton–Raphson method. The proposed damage model is validated against the available experimental results for notched laminated composite panels. The predictions of the proposed model are also compared with a failure mode independent damage model, a phenomenological failure mode dependent damage model and a Hashin failure criteria based model. The results depict the efficacy of the proposed model to capture varying degrees of non-linearity in all experimental uniaxial/shear stress–strain curves. The predicted failure loads for the notched panels are in good agreement with the available experimental results. The results of the proposed model depict different damage in tension and compression consistent with strength properties, micro-crack closure/failure mode switching effects, and coupling among damage variables.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"357 ","pages":"Article 118875"},"PeriodicalIF":6.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143350795","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

Optimization of model order reduction for transient analysis of functionally graded plates using isogeometric analysis based on four-variable quasi-3D theory

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-01 DOI: 10.1016/j.compstruct.2025.118844

Van Hai Luong , Khanh D. Dang , Seunghye Lee , Qui X. Lieu

{"title":"Optimization of model order reduction for transient analysis of functionally graded plates using isogeometric analysis based on four-variable quasi-3D theory","authors":"Van Hai Luong , Khanh D. Dang , Seunghye Lee , Qui X. Lieu","doi":"10.1016/j.compstruct.2025.118844","DOIUrl":"10.1016/j.compstruct.2025.118844","url":null,"abstract":"<div><div>This study aims to develop an optimally reduced order isogeometric analysis (IGA) for analyzing the transient behavior of functionally graded (FG) plates based on four-variable quasi-3D theory for the first time. The plate’s dynamic features are condensed via an iterated improved reduced system (IIRS) strategy whose master degrees of freedom (DOFs) attached to control points in the IGA framework are optimized by differential evolution (DE). Consequently, the optimal IIRS with naturally preserved consistent masses can yield better accuracy of higher-order modal modes. In addition, a four-unknown quasi-3D theory is utilized to represent the displacement field through the plate thickness. This theory can not only further reduce the number of master DOFs defined in reduced order models (ROMs), but also still consider the influences of transverse shear strain and normal stress against other higher-order shear deformation theories (HSDTs). Meanwhile, the displacement field in the plate plane is approximated by non-uniform rational B-splines (NURBS) functions. The Galerkin’s method is used to derive the IGA-driven IIRS for the transient analysis of proportionally damped plates. Then, the time-series behavior of the reduced system is resolved by the Newmark-<span><math><mi>β</mi></math></span>. Several examples are illustrated to confirm the validity of the proposed methodology.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"355 ","pages":"Article 118844"},"PeriodicalIF":6.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143142998","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

Enhanced mechanical properties and energy absorption of lattice metamaterials inspired by crystal imperfections

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-01 DOI: 10.1016/j.compstruct.2025.118894

Miao Zhao , Jiangmei Cui , Long Chen , Kaiyue Jin , Zhi Zeng

{"title":"Enhanced mechanical properties and energy absorption of lattice metamaterials inspired by crystal imperfections","authors":"Miao Zhao , Jiangmei Cui , Long Chen , Kaiyue Jin , Zhi Zeng","doi":"10.1016/j.compstruct.2025.118894","DOIUrl":"10.1016/j.compstruct.2025.118894","url":null,"abstract":"<div><div>The inspiration of crystal lattice provides a straightforward but efficient tool to generate lightweight lattice metamaterials. However, crystals in nature are imperfect. Here, inspired by the point defects of crystal microstructure, we propose a class of modified body-centered cubic lattice metamaterials featuring adjustable central nodes with enhanced mechanical properties and energy absorption. The effects of node offset on the compressive behaviors of lattice metamaterials are evaluated using compression tests and finite element methods. The modified lattice metamaterials exhibit a distinct two-step deformation, gradually enhancing the load-bearing capability during the compression process. A novel auxetic behavior is achieved by increasing the distance of node offset. Notably, the elastic modulus, yield strength, and specific energy absorption of the lattice metamaterials are improved by 41.5–154.1 %, 40.2–110.8 %, and 96.2–245.2 %, respectively. The strengthening mechanisms of the point defect on the mesoscale lattice metamaterials are derived from the combination of negative Poisson’s ratio and mixed bending- and stretching-dominated deformation behaviors. Additionally, the modified lattice metamaterials demonstrate an efficient energy dissipation capability with a high energy dissipation rate of approximately 0.7 up to five cycles. Overall, this work demonstrates the potential of mimicking crystal defects to simultaneously enhance mechanical properties and energy absorption of mesoscale lattice metamaterials.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"356 ","pages":"Article 118894"},"PeriodicalIF":6.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143376","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