Rui Nie , Fangfang Zhang , Yesen Fan , Baiyan He , Guobiao Wang
{"title":"Precise and robust shape sensing considering sensor placement and measurement uncertainties","authors":"Rui Nie , Fangfang Zhang , Yesen Fan , Baiyan He , Guobiao Wang","doi":"10.1016/j.compstruct.2025.119326","DOIUrl":"10.1016/j.compstruct.2025.119326","url":null,"abstract":"<div><div>Shape sensing, which involves reconstructing the displacement field of a structure from discrete strain measurements, is widely utilized in aerospace, marine, civil engineering, and other domains. Since macroscopic deformations are evaluated based on measured local strains by limited sensors, the sensor placements play a significant role in ensuring precise and robust shape sensing. In practical applications, inevitable and indistinguishable measurement uncertainties can lead to deviations in measured strain and subsequently result in significant errors or even mistakes during reconstruction. Therefore, it is essential to determine suitable sensor placements that are insensitive to measurement deviations for robust shape sensing. This paper proposes an optimal methodology for sensor placement considering measurement uncertainty with the aim of enhancing accuracy and robustness in shape sensing. We establish a mapping relationship between sensor placement and reconstruction accuracy to develop a sensor placement scheme for precise shape sensing. Additionally, a novel technique is presented for the quantification of multiple uncertainties, such as sensor installation errors and signal noise, based on Sparse Grid Numerical Integration (SGNI). Consequently, analytical equations for reconstruction effectively considering measurement uncertainties are derived. Based on the work mentioned above, the optimization of sensor locations can be performed by considering the influences of multiple measurement uncertainties on reconstruction accuracy and robustness. The effectiveness of all proposed methods is verified through experiments, and the applicability of the proposed method to composite structures is confirmed via a deformation reconstruction simulation of a representative composite material.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119326"},"PeriodicalIF":6.3,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147443","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}
Andre Luis Ferreira da Silva, Ruben Andres Salas, Eduardo Moscatelli, Luis Fernando Nogueira de Sá, Emilio Carlos Nelli Silva
{"title":"Fiber orientation in brittle materials considering post-fracture behavior","authors":"Andre Luis Ferreira da Silva, Ruben Andres Salas, Eduardo Moscatelli, Luis Fernando Nogueira de Sá, Emilio Carlos Nelli Silva","doi":"10.1016/j.compstruct.2025.119244","DOIUrl":"10.1016/j.compstruct.2025.119244","url":null,"abstract":"<div><div>This study presents a new framework designed to optimize fiber orientation in brittle materials, with an emphasis on post-fracture behavior. It integrates phase-field fracture modeling with topology optimization to enhance the mechanical performance of fiber-reinforced concrete by more effectively managing crack propagation.</div><div>The framework utilizes a novel constitutive model based on phase-field theory, which represents damage evolution in brittle materials. The optimization process involves a multi-objective function that balances structural stiffness with damage mitigation. Numerical simulations show that the optimized fiber orientation improves fracture resistance and stiffness, even after crack initiation, thereby extending the overall durability of the structure.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119244"},"PeriodicalIF":6.3,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144139247","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}
Chenhao Dong , Jiafei Gu , Zhao Liu , Robert S. Pierce , Jian Yang , Xiaoling Liu , Xiaosu Yi
{"title":"A novel membrane-coupled foldable metamaterial with low frequency sound absorption and vibration isolation performance","authors":"Chenhao Dong , Jiafei Gu , Zhao Liu , Robert S. Pierce , Jian Yang , Xiaoling Liu , Xiaosu Yi","doi":"10.1016/j.compstruct.2025.119314","DOIUrl":"10.1016/j.compstruct.2025.119314","url":null,"abstract":"<div><div>A novel membrane-coupled foldable metamaterial that incorporates mass blocks for resonant damping is presented in this paper. The sound absorption, compressive strength, and vibration control properties have been studied. The results showed that the foldable metamaterials can achieve low frequency sound absorption while possessing some structural capability. The sound absorption characteristics of the foldable metamaterials were seen to be adjustable by changing the size of the mass blocks on the membranes. Additionally, Finite Element simulations with fluid structural interaction were established to replicate the sound absorption experiments, highlighting the membrane’s vibration as the primary source for sound absorption in the foldable metamaterials. The PLA-type foldable metamaterials were found to have better vibration control than an MPP-honeycomb structure while reducing the weight by 66.2 %. The modulus and strength of the CFRP-type foldable metamaterials could reach 233.02 MPa and 3.34 MPa, respectively, 98 % and 486 % higher than those of a conventional honeycomb structure.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"369 ","pages":"Article 119314"},"PeriodicalIF":6.3,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144166078","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}
Zhilong Jiang , Feng Zhang , Kaifu Li , Yingbin Chai , Wei Li , Qiang Gui
{"title":"Evaluation of the torsional wave propagation in the magneto-electro-elastic radial phononic crystal plates with overlapping finite elements","authors":"Zhilong Jiang , Feng Zhang , Kaifu Li , Yingbin Chai , Wei Li , Qiang Gui","doi":"10.1016/j.compstruct.2025.119315","DOIUrl":"10.1016/j.compstruct.2025.119315","url":null,"abstract":"<div><div>In the present work, an intelligent magneto-electro-elastic (MEE) radial phononic crystal (PnC) is constructed for the vibration control of rotary structures, and the torsional wave propagation in this PnC is evaluated. A coupled MEE overlapping finite element method (OFEM) model is developed for efficient dynamic analyses of the MEE-based structures by reducing the significant numerical dispersions in standard finite element model. Two numerical tests demonstrate that the multi-physical responses of the MEE-based systems can be accurately derived by the proposed numerical model using coarse meshes. Thereafter, the torsional wave propagation of the MEE radial PnC is calculated using this high-performance OFEM to investigate the band gap properties. Furthermore, the impact of some important parameters (the multi-physics coupling effect and the inner radius) of the PnC on its band gap properties is evaluated. This study introduces a highly efficient numerical scheme for the dynamic analyses of MEE-based devices, and the discussion about the MEE radial PnCs could potentially aid in the advancement of research on smart PnCs.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119315"},"PeriodicalIF":6.3,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147447","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}
Bo Li , Gang Ma , Guowei Zhuo , Kai Zhang , Long Ma
{"title":"Response of fibre metal interpenetrating composite plate under impact loading: Experiment and numerical simulation","authors":"Bo Li , Gang Ma , Guowei Zhuo , Kai Zhang , Long Ma","doi":"10.1016/j.compstruct.2025.119305","DOIUrl":"10.1016/j.compstruct.2025.119305","url":null,"abstract":"<div><div>Fiber Metal Laminates (FML) have excellent mechanical properties and impact resistance, making them widely used in modern engineering fields such as aerospace, vehicle, and shipbuilding. However, the susceptibility to delamination damage is a major disadvantage of FML. In this study, carbon/aramid fibres were combined with a perforated metal matrix in a 3D interpenetrating manner to prepare the Fibre Metal Interpenetrating Composite Plate (FMICP) with excellent interlayer integrity. An impact experiment was carried out on an FMICP sample. Combined with finite element analysis, the analysis was carried out with the aim of investigating the impact response and failure modes of the FMICP, with a focus on analysing the effects of the impact velocity, the area of the impact, and the style of the metal-based perforating on the energy-absorbing capacity of the sample. The results showed that the percentage of impact energy absorbed by different materials was ranked as metal layer, fibre layer, and resin layer. The shape of the perforation in the metal base changed the path and rate of impact stress transfer, with elliptical perforated metal bases having a better rate of energy transfer dissipation as well as energy storage capacity, followed by circular-rectangular, and rectangular being the worst.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119305"},"PeriodicalIF":6.3,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134190","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}
Rui Xie , Qing Liu , Mingzhu Qiu , Peng Cao , Zhifei Tan , Liang Cao , Guizhu Zhang
{"title":"A viscoelastic micromechanical damage model for multiphase porous composites: Model development and application","authors":"Rui Xie , Qing Liu , Mingzhu Qiu , Peng Cao , Zhifei Tan , Liang Cao , Guizhu Zhang","doi":"10.1016/j.compstruct.2025.119308","DOIUrl":"10.1016/j.compstruct.2025.119308","url":null,"abstract":"<div><div>Multiphase porous composites are widely used in engineering applications, but their complex microstructure poses significant challenges in predicting their mechanical performance. To address this issue, a novel viscoelastic micromechanical damage constitutive model for multiphase porous composites is proposed. The model comprehensively incorporates the material’s multiphase heterogeneity, random damage evolution, and viscoelastic properties. Specifically, the composite is represented using an (<em>n</em> + 1) phase model, with the viscoelastic behavior of the matrix characterized by the Prony series, and the random damage evolution modeled using both Log-normal and Weibull distributions. The model’s validity is confirmed through uniaxial compression test results on asphalt-calcareous sand mixtures with varying asphalt content and calcareous sand gradations. Additionally, sensitivity analyses are conducted on key parameters, including aggregate modulus, asphalt modulus, asphalt content, air voids content, particle size, viscous parameters, strain rate and damage statistical parameters. The results reveal that enhancing the strength of calcareous sand, selecting stiffer asphalt, and reducing asphalt and air void contents effectively improve the strength of asphalt-calcareous sand mixtures. This developed model provides a robust framework for predicting the mechanical performance of various types of multiphase porous composites, expanding its potential applications in engineering practice.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119308"},"PeriodicalIF":6.3,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144131189","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}
{"title":"The role of intra-laminar hybridization on the thermo-mechanical behaviour of fibre-hybrid composites using 3D RVEs","authors":"G. Romano , K.B. Katnam , Z. Zou , P. Potluri","doi":"10.1016/j.compstruct.2025.119316","DOIUrl":"10.1016/j.compstruct.2025.119316","url":null,"abstract":"<div><div>The effect of intra-laminar hybridisation (<em>i.e.,</em> two fibres within the matrix) on the effective coefficients of thermal expansion and thermomechanical behaviour of fibre-hybrid unidirectional composite laminae is investigated in this study. The research focuses on S-glass/epoxy and carbon/epoxy laminae hybridised with a secondary thermoplastic fibre (<em>i.e.,</em> polypropylene, PET and PEEK). To conduct micro-mechanical analyses under transverse tensile and shear loading conditions (with and without thermally induced residual stress), three-dimensional representative volume elements (3D RVEs) are developed. The effects of using different microstructures, volume fractions, fibre diameters, and thermal cycles on interfacial and matrix microstress fields are investigated. The predicted homogenised elastic properties are validated against experimental data, while the predicted effective coefficients of thermal expansion of the RVEs models are validated against two well-established analytical models (<em>i.e.,</em> Schapery and Mori-Tanaka). The results indicate that intra-laminar fibre hybridisation can alter the lamina’s effective coefficients of thermal expansion and micro-stress fields. Notably, the inclusion of polypropylene (PP) fibres as secondary fibres significantly increases interfacial stresses due to the substantial mismatch in the coefficient of thermal expansion between the PP fibres and the epoxy matrix. The extent of these alterations relies on variables such as fibres’ stiffness and coefficient of thermal expansion, thermal cooling-down cycle, and fibre volume fractions. This facet offers an opportunity for exploration as a method to regulate damage modes and, consequently, the processes of energy dissipation.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119316"},"PeriodicalIF":6.3,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147449","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}
{"title":"Improved mixed gradient design method to enhance compression stiffness and energy absorption of auxetic structures","authors":"Lulu Wei , Guohua Zhu , Jingjing He","doi":"10.1016/j.compstruct.2025.119284","DOIUrl":"10.1016/j.compstruct.2025.119284","url":null,"abstract":"<div><div>The auxetic structure with multi-plateau stress stages exhibited excellent designability while improving mechanical properties. In this study, a mixed gradient design method was proposed to simultaneously enhance the energy absorption capacity and compression stiffness of auxetic structures. According to the different types of cell-walls, star-triangle honeycombs (STH) with uniform thickness were designed, and in-plane crushing tests were carried out to reveal the deformation and energy absorption characteristics. The reliable finite element models were constructed to systematically reveal the deformation sequence and load-bearing characteristics of different types of cell-walls at different deformation stages. Subsequently, different cell-wall thickness ratios (<em>δ</em>) were constructed according to the load-bearing characteristics of different types of cell-walls. Comparative analysis revealed that the thickness ratio <span><math><mrow><msub><mi>δ</mi><mtext>2</mtext></msub><mo>=</mo><msub><mtext>t</mtext><mtext>2</mtext></msub><mo>/</mo><mrow><mfenced><mrow><msub><mtext>t</mtext><mtext>1</mtext></msub><mo>=</mo><msub><mtext>t</mtext><mtext>3</mtext></msub></mrow></mfenced></mrow></mrow></math></span> could simultaneously improve the specific energy absorption (SEA) and compression stiffness (<em>E</em>) of STH. Based on the <span><math><mrow><msub><mi>δ</mi><mtext>2</mtext></msub></mrow></math></span> and keeping the re-entrant cell-wall thickness constant, improved single gradient and mixed gradient thickness design methods were proposed. Finally, the improved single gradient design exhibited a significant enhancement effect on the <em>E</em> of STH. Compared with the traditional thickness gradient (STH-UTG), the SEA and <em>E</em> of STH with mixed thickness gradient were improved by about 52.37 % and 193.34 %, respectively. Consequently, the mixed gradient design methods provide innovative insights for enhancing the mechanical properties of auxetic structures.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119284"},"PeriodicalIF":6.3,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144139249","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}
Qian Li , Ruixiang Bai , Heshan Bai , Jinjing Zhu , Zhenkun Lei , Cheng Yan
{"title":"Experimental evaluation and multiscale simulation for the mechanical property of carbon fiber reinforced Vitrimer composites","authors":"Qian Li , Ruixiang Bai , Heshan Bai , Jinjing Zhu , Zhenkun Lei , Cheng Yan","doi":"10.1016/j.compstruct.2025.119306","DOIUrl":"10.1016/j.compstruct.2025.119306","url":null,"abstract":"<div><div>Vitrimers resemble conventional thermosets, demonstrating comparable thermal stability and mechanical properties within operational temperatures. Beyond a critical temperature threshold, they display thermoplastic behavior due to their dynamic cross-linked networks. Despite their technological promise, current research inadequately addresses the systematic characterization of mechanical performance in vitrimer composites – a fundamental requirement for engineering applications. The mechanical properties of vitrimer composites can be designed by changing different stoichiometric ratios, this study systematically investigates the mechanical behaviors under tension, compression, and shear of Vitrimer-based composites at different epoxy/anhydride ratios, comparing them with traditional thermoset composites. The results demonstratethat Vitrimer composites with reasonable epoxy/anhydride ratio possess mechanical properties at room temperature that are comparable to traditional thermoset composite. To elucidate damage initiation mechanisms of the Vitrimer composite, a representative volume element (RVE) model was established, including matrix elastoplastic damage constitutive model and interface cohesive model, the interface parameters between fibers and matrix were obtained through inverse methods. Both simulation and experimental results show good consistency.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"369 ","pages":"Article 119306"},"PeriodicalIF":6.3,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195583","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}
Fei Chen , Jie Ding , Mingyong Jia , Yueqi Wu , Chi Zhang
{"title":"3D Bi-continuous interpenetrating networks enables Al-matrix composites with enhanced mechanical energy absorption capacity","authors":"Fei Chen , Jie Ding , Mingyong Jia , Yueqi Wu , Chi Zhang","doi":"10.1016/j.compstruct.2025.119293","DOIUrl":"10.1016/j.compstruct.2025.119293","url":null,"abstract":"<div><div>The bi-continuous interpenetrating structure of ceramic reinforcement and Al matrix is expected to achieve a breakthrough in the trade-off between strength and toughness of Al-matrix composites. This study reports a promising method using biomimetic design and hybrid technology combining additive manufacturing with melt infiltration to prepare Al-matrix composites with high geometric freedom and superior mechanical properties. The Al<sub>2</sub>O<sub>3</sub>/Al interpenetrating phase composites (IPCs) with BCC and Gyroid lattice-based ceramic scaffolds exhibit simultaneously enhanced compressive stress, energy absorption, and specific energy absorption. The highest gain in specific energy absorption of Al<sub>2</sub>O<sub>3</sub>/Al IPCs reveals an impressive sixfold increase. These significant improvements are attributed to damage delocalization, interfacial interactions, and geometric effects of ceramic lattices. Overall, this study provides a potential strategy for lightweight Al-matrix composites in automotive and aerospace applications.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119293"},"PeriodicalIF":6.3,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116717","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}