Composite Structures最新文献_第7页

Effects of shear connection methods on the performance of UHPFRC-NC hybrid beams with U-shaped GFRP stay-in-place formworks

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-03-10 DOI: 10.1016/j.compstruct.2025.119052

Yaqi Li , Zihua Zhang , Zhenjun Yang , Muhirwa Fernand , Tao Jiang

{"title":"Effects of shear connection methods on the performance of UHPFRC-NC hybrid beams with U-shaped GFRP stay-in-place formworks","authors":"Yaqi Li , Zihua Zhang , Zhenjun Yang , Muhirwa Fernand , Tao Jiang","doi":"10.1016/j.compstruct.2025.119052","DOIUrl":"10.1016/j.compstruct.2025.119052","url":null,"abstract":"<div><div>This paper investigates the effects of shear connection methods on the performance of Ultra-high performance fiber reinforced concrete (UHPFRC)-normal concrete (NC) hybrid beams with U-shaped glass fiber-reinforced polymer (GFRP) stay-in-place (SIP) formworks. A total of 21 beams were tested under three-point bending to evaluate their load capacity, failure mechanisms, strain evolution, and cost performance. The specimens included 15 hybrid beams with various shear connection methods—resin-bonding, resin-bonding plus I-shaped GFRP profiles, and resin-bonding plus steel bolts at different spacings—as well as six control beams without SIP formworks for comparison. The complex microscale failure mechanisms were visualized through μXCT scanning. Results indicated that GFRP connectors demonstrated the highest bonding performance and load capacity among all connection methods, while steel bolt connectors provided the best post-failure ductility. The incorporation of SIP formworks significantly enhanced the structural performance of the hybrid beams, maximizing the utilization of UHPFRC’s high compressive strength. Compared to traditional reinforced UHPFRC beams, the hybrid beams achieved 22.7% higher peak loads while reducing UHPFRC usage by 63.2%. Cost effective analysis revealed that hybrid beams with GFRP connectors exhibit the best cost performance among different shear connection methods, with 68.2% higher than that of traditional reinforced UHPFRC beams.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"360 ","pages":"Article 119052"},"PeriodicalIF":6.3,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601291","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

Adaptive 3D multi-patch isogeometric analysis for orthotropic solid

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-03-09 DOI: 10.1016/j.compstruct.2025.119028

Lin Wang , Tiantang Yu , Weihua Fang

引用次数: 0

Bending damage of novel UV-CGFR composites for pipeline rehabilitation: Experimental characterization and numerical simulation

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-03-09 DOI: 10.1016/j.compstruct.2025.119065

Yangyang Xia , Chao Zhang , Cuixia Wang , Jing Wang , Xinxin Sang , Peng Zhao , Hongyuan Fang

{"title":"Bending damage of novel UV-CGFR composites for pipeline rehabilitation: Experimental characterization and numerical simulation","authors":"Yangyang Xia , Chao Zhang , Cuixia Wang , Jing Wang , Xinxin Sang , Peng Zhao , Hongyuan Fang","doi":"10.1016/j.compstruct.2025.119065","DOIUrl":"10.1016/j.compstruct.2025.119065","url":null,"abstract":"<div><div>In this paper, a finite element numerical model of the bending damage of ultraviolet-cured glass fiber reinforced (UV-CGFR) composites was developed based on the results of the three-point bending test and X-ray tomography (Micro-CT), as well as infrared thermography (IRT) and other microscopic and macroscopic characterization tests. The numerical model, incorporating the three-dimensional Hashin failure criterion via the VUMAT subroutine, was established to predict the bending failure process and damage energy of UV-CGFR composites from the perspectives of fracture damage and energy dissipation. The effects of curing time, UV irradiation intensity, and loading rate on the bending properties and bending failure mechanism of UV-CGFR composites were systematically investigated. The primary failure modes observed were resin compression-tensile fractures, fiber tensile fractures, interlaminar debonding, and delamination. The bending strength and bending modulus of UV-CGFR composites increase and decrease with the increase of curing time and irradiation intensity; the bending strength increases with the loading rate, and the bending modulus is less affected by the loading rate. The temperature rise effect generated by fiber tensile fractures and interlaminar debonding was identified as a key factor contributing to the enhancement of bending strength. The temperature increase became more pronounced with higher loading rates, reaching a maximum rise of 5.2℃. Furthermore, the feasibility of UV-CGFR composites for pipeline repair was validated through pipe ring bending tests. The results show that the bending damage behaviour of UV-CGFR composites aligns well with real-world engineering applications, and the UV-CGFR composite lining repair significantly enhanced the pipeline’s load-bearing properties.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"360 ","pages":"Article 119065"},"PeriodicalIF":6.3,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143610895","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

Theoretical and numerical study of crashworthiness of asymmetric gradient-hierarchical bi-hexagonal tubes

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-03-08 DOI: 10.1016/j.compstruct.2025.119033

Quanping Fu , Xiaolin Deng , Shen Xu

{"title":"Theoretical and numerical study of crashworthiness of asymmetric gradient-hierarchical bi-hexagonal tubes","authors":"Quanping Fu , Xiaolin Deng , Shen Xu","doi":"10.1016/j.compstruct.2025.119033","DOIUrl":"10.1016/j.compstruct.2025.119033","url":null,"abstract":"<div><div>Previous studies have demonstrated that multi-cell bi-tubular tubes exhibit superior energy absorption capacity when compared to multi-cell tubes. In order to further enhance the energy absorption capacity of multi-cell bi-tubular tubes, this paper proposes an asymmetric gradient hierarchical bi-hexagonal tube (AGBT), which draws inspiration from the microstructure of the impact region of shrimp chelipeds and asymmetrical tree-like fractal structures. The results show that, under equal wall thickness conditions, the specific energy absorption and crushing force efficiency of the proposed 3rd order asymmetric gradient hierarchical bi-hexagonal tube (AGBT-3) are respectively 1.82 and 1.47 times higher than those of the conventional bi-hexagonal tube. Furthermore, under equal mass conditions, the specific energy absorption and crushing force efficiency of AGBT-3 are enhanced by up to 21% and 27%, respectively, in comparison to 0th order asymmetric gradient hierarchical bi-hexagonal tube (AGBT-0). These findings establish a clear advantage of the proposed AGBT-3 over AGBT-0 in terms of crashworthiness. Additionally, this study also conducts a theoretical prediction of the mean crushing force of the proposed AGBT, based on the simplified super folding element theory, and observes a good agreement between the theoretical prediction and numerical results. The outcomes of this study will serve as a valuable reference for the design and optimization of novel lightweight thin-walled energy-absorbing structures.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"360 ","pages":"Article 119033"},"PeriodicalIF":6.3,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143610826","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

Repeated and multiple hail impacts on honeycomb sandwich panels: An experimental and numerical study

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-03-08 DOI: 10.1016/j.compstruct.2025.119055

Mohammad Haghgoo , Mojtaba Sadighi , Mohammad Mohammadi Aghdam , Reza Hedayati

{"title":"Repeated and multiple hail impacts on honeycomb sandwich panels: An experimental and numerical study","authors":"Mohammad Haghgoo , Mojtaba Sadighi , Mohammad Mohammadi Aghdam , Reza Hedayati","doi":"10.1016/j.compstruct.2025.119055","DOIUrl":"10.1016/j.compstruct.2025.119055","url":null,"abstract":"<div><div>Sandwich panels are often utilized in structures to enhance stability, reduce weight, and simplify repairs. Airplanes equipped with honeycomb core sandwich panels are susceptible to hail impact damage. This type of damage can cause barely visible impact damage (BVID), which affects the core but not the face sheets. The main objective of this study is to examine the failure mechanisms of the Nomex honeycomb sandwich panel when subjected to single, repeated (i.e. at the same location), and multiple (i.e. at different locations) hail impacts. The experimental study was conducted to investigate the hail’s behavior upon impact on rigid structures and, subsequently, to assess the failure modes of sandwich structures under repeated hail impacts. The objective was to develop a suitable numerical model for studying the response of sandwich structures under multiple and random hail impacts. The sandwich panel, which consisted of four layers of woven glass epoxy as the face sheet and a Nomex honeycomb layer with a thickness of 16 mm as a core, was tested for its resilience to repeated hail impacts with 5, 10, 15, and 20 impacts. Four failure mechanisms were observed in the sandwich plate, including delamination growth at the top face sheet and three types of failure in the core. The core failures, initiated with wrinkling of the core walls, progressed to wall rupturing at higher impacts and, after 15 impacts, separated the face sheet from the core. Numerical models were then deployed to investigate the effects of hail size in a single impact and the effect of the random distribution of multiple hail impacts. The severity of damage caused by multiple impacts from lower-energy hail (30 mm in size at 21 m/s) was in a similar level as damage from a single impact by higher-energy hail (>40 mm in size at 30 m/s). The damage was almost initiated after eight impacts under the site<del>,</del> which experienced two close impacts.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"360 ","pages":"Article 119055"},"PeriodicalIF":6.3,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143610894","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

Physics-informed model order reduction for laminated composites: A Grassmann manifold approach

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-03-08 DOI: 10.1016/j.compstruct.2025.119035

Abhilash Sreekumar, Swarup K. Barman

引用次数: 0

Damage detection on flexural loading of hybrid laminated composite by acoustic emission

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-03-07 DOI: 10.1016/j.compstruct.2025.119056

Munise Didem Demirbas , Umut Caliskan , Hafız Muhammad Numan Zafar

{"title":"Damage detection on flexural loading of hybrid laminated composite by acoustic emission","authors":"Munise Didem Demirbas , Umut Caliskan , Hafız Muhammad Numan Zafar","doi":"10.1016/j.compstruct.2025.119056","DOIUrl":"10.1016/j.compstruct.2025.119056","url":null,"abstract":"<div><div>Fibers with different inherent characteristics are industrially hybridized for further improving the mechanical loading responses of the fiber-reinforced composites. The difference in the matrix-fiber affinity of such fibers makes similar and alternative interfaces in the laminate. Although recent studies have shown that strategic placement of fibers at appropriate location within the composite for a pre-determined loading type (bending, tensile, or compression) improves the mechanical behavior, the underlying damage mechanisms still need detailed investigation using modern technologies. So, in this study, novel hybrid laminates of various symmetric hybrid configurations were fabricated with industrially active carbon, basalt, aramid, and glass fibers using compression molding. The bending behavior of the configurations at various (1, 5, 10, and 20 mm/min) strain rates were monitored by both load–displacement curves and load-induced acoustic signals. The density of acoustic waves, classified and disintegrated by the types of stimuli they originated from, were correlated with the internal structure, types of cracks, and loading rates. Results showed that the acoustic emission (AE) assisted in predicting the internal damage mechanisms and fracture behavior of the composites at different loading rates. This information can be used for Structural Health Monitoring (SHM) during the service life of the composites as components.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"360 ","pages":"Article 119056"},"PeriodicalIF":6.3,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143580623","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

Bending mechanical properties and failure mechanism of spreading fabric/felt needled C/C laminated composites

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-03-07 DOI: 10.1016/j.compstruct.2025.119047

Zhongwei Fang, Yang Tao, Diantang Zhang

{"title":"Bending mechanical properties and failure mechanism of spreading fabric/felt needled C/C laminated composites","authors":"Zhongwei Fang, Yang Tao, Diantang Zhang","doi":"10.1016/j.compstruct.2025.119047","DOIUrl":"10.1016/j.compstruct.2025.119047","url":null,"abstract":"<div><div>Needled carbon/carbon (C/C) composites are widely used in the field of aerospace. However, how to reduce the porosity and improve the mechanical properties is still a key problem. This paper presents the bending damage performance and failure mechanisms of spreading fabric/felt needled C/C laminated composites(SFNCCs). Three kinds of SFNCCs, B-NPs (16 mm spreading fabric and felt layers), H-NPs (8 mm spreading fabric and felt layers), and T-NPs (outer B-NPs with inner H-NPs structure), were innovatively designed and prepared. The fabricated composites were subsequently evaluated through three-point bending tests. Furthermore, a multi-scale model was established and the damage initiation/evolution of SFNCCs were simulated. Results indicated that the simulated displacement load curve closely aligns with the experimental data. The maximum bending load of T-NPs is 439.2 N, which exceeds that of B-NPs and H-NPs by 12.59 % and 24.23 %, respectively, indicating that T-NPs’ superior load-bearing capabilities. The main failure mechanisms of B-NPs and T-NPs are both controlled by fiber fracture, whereas that of H-NPs are typically influenced by fiber pullout, fiber fracture and fiber–matrix interfacial debonding.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"361 ","pages":"Article 119047"},"PeriodicalIF":6.3,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632059","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

Multidirectional mechanical properties of functionally graded triply periodic minimal surfaces for bone tissue engineering applications

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-03-07 DOI: 10.1016/j.compstruct.2025.119054

Nguyen Van Viet, Marwan El-Rich, Wael Zaki

{"title":"Multidirectional mechanical properties of functionally graded triply periodic minimal surfaces for bone tissue engineering applications","authors":"Nguyen Van Viet, Marwan El-Rich, Wael Zaki","doi":"10.1016/j.compstruct.2025.119054","DOIUrl":"10.1016/j.compstruct.2025.119054","url":null,"abstract":"<div><div>This work numerically explores the multidirectional mechanical responses and potential biomedical applications of nonlinearly functionally graded bone tissue engineering structure with triply periodic minimal surfaces, focusing on the anisotropy of effective Young’s modulus, directional phase wave propagation, and multiaxial yield surfaces under varying gradient indices and topologies. The experiments are conducted to verify the accuracy of numerical homogenization in aspects of effective Young’s modulus in graded direction, showing good agreement with a maximum percentage difference of 14.3 %. The results indicate that lowering the gradient index increases the overall stiffness and yield strength in a nonlinear pattern, while reducing the extremeness of anisotropy in the stiffness and phase wave propagation, making bone tissue engineering structure more similar to bone. Interestingly, it demonstrates the possibility of achieving a bone tissue engineering structure stiffness that is comparable to bone, at the same weight, by adjusting the gradient index. Moreover, the development of bone cells within bone tissue engineering structure not only enhances the stiffness of bone- bone tissue engineering structure composite but also reduces the extremeness of anisotropy of the stiffness. The extended Hill’s model demonstrates a good fit with numerical data, particularly for points near the origin, proving to be an effective approach for constructing the multiaxial critical yield surface of the bone tissue engineering structures, at a reduced computational cost. By adjusting the gradient index, the proposed titanium bone tissue engineering structures hold potential for applications in bone implants, such as hip replacements, jaw implants, and similar uses.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"363 ","pages":"Article 119054"},"PeriodicalIF":6.3,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697471","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

Material degradation based finite element modelling for fibre-reinforced composites in hygrothermal environment

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-03-06 DOI: 10.1016/j.compstruct.2025.119049

Niranjan Chouhan, Mohnish Kumar Sahu, Devesh Punera

{"title":"Material degradation based finite element modelling for fibre-reinforced composites in hygrothermal environment","authors":"Niranjan Chouhan, Mohnish Kumar Sahu, Devesh Punera","doi":"10.1016/j.compstruct.2025.119049","DOIUrl":"10.1016/j.compstruct.2025.119049","url":null,"abstract":"<div><div>Advanced composites are integral to sustainable engineering applications like tidal turbine blades, lightweight aircraft panels, hydrogen storage vessels etc. However, these composites are susceptible to degradation from heat and moisture exposure during operation. This study aims to comprehend the degraded properties and long-term response of these composites using micromechanical framework. While the deteriorated mechanical properties of resin under hygrothermal conditions are quantified using a simplified empirical model, the Mori-Tanaka micromechanics approach evaluates the effective degraded properties of fibre-reinforced composites for different fibre volume fractions under moisture concentration. Further, a higher order kinematics is utilized to calculate the response of such composite plates under hygrothermal and mechanical loading. A finite element (FE) based numerical model is adopted for solution of the governing equations. Present micromechanical framework is able to predict the degraded material properties with sufficient accuracy. The overall response of the composite plates under hygrothermal loads is found in agreement with the existing works. Degradation analysis unveils the evolving mechanical properties over time, providing vital insights into the long-term performance of composite materials.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"360 ","pages":"Article 119049"},"PeriodicalIF":6.3,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621460","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