Materials & Design最新文献_第6页

Reconfigurable dual-mode meta-waveguide 可重构双模元波导

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-11-01 DOI: 10.1016/j.matdes.2024.113447

Pei Hang He , Hao Chi Zhang , Ling Yun Niu , Yi Fan , Da Yue Yao , Yifei Huang , Yiwen Liu , Wenxuan Tang , Tie Jun Cui

{"title":"Reconfigurable dual-mode meta-waveguide","authors":"Pei Hang He , Hao Chi Zhang , Ling Yun Niu , Yi Fan , Da Yue Yao , Yifei Huang , Yiwen Liu , Wenxuan Tang , Tie Jun Cui","doi":"10.1016/j.matdes.2024.113447","DOIUrl":"10.1016/j.matdes.2024.113447","url":null,"abstract":"<div><div>With the rapid growth of information flux, integrating more channels in limited spaces has been a critical requirement for highly-integrated long-range parallel transmissions. Although meta-waveguides, such as spoof surface plasmon polariton (SSPP) waveguides, can suppress crosstalk between adjacent channels, it is still urgent to seek new methods to further increase the number of channels without occupying additional space. Here, we propose a reconfigurable dual-mode meta-waveguide (RDMMW) by integrating diodes into meta-units, which supports two independent channels using two orthogonal modes. The RDMMW can be switched among dual-mode, even-mode, odd-mode and cutoff states by controlling the diodes, which provides more freedom to manipulate the channel features. The RDMMW possess two outstanding merits in highly-integrated long-range parallel transmissions, including lower coupling between two channels than conventional single-mode waveguides and constant mode coupling in longer waveguides. Thus the proposed RDMMW has advantages of multi-mode, reconfiguration, low coupling and high integration density, providing a new avenue to realize highly-integrated multi-functional systems.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"247 ","pages":"Article 113447"},"PeriodicalIF":7.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651860","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

Design strategy for 3D layer-to-layer angle interlock woven composites 三维层间角交错编织复合材料的设计策略

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-11-01 DOI: 10.1016/j.matdes.2024.113414

Elena Sitnikova , Mingming Xu , Weiyi Kong , Shoufeng Hu , Shuguang Li

{"title":"Design strategy for 3D layer-to-layer angle interlock woven composites","authors":"Elena Sitnikova , Mingming Xu , Weiyi Kong , Shoufeng Hu , Shuguang Li","doi":"10.1016/j.matdes.2024.113414","DOIUrl":"10.1016/j.matdes.2024.113414","url":null,"abstract":"<div><div>A design strategy for 3D layer-to-layer angle interlock woven composites has been established by employing a set of three key properties of the weave (KPoWs): the global fibre volume fraction, the interlocking angle and the ratio of the weft tow volume to the warp tow volume. Using analytically derived expressions of the KPoWs, their variation trends relative to the manufacturing parameters have been revealed. At the same time, via a range of systematic computational material characterisation exercises, the KPoWs were shown to be sufficient for representing the woven reinforcement as far as the elastic behaviour predictions are concerned, because the effective elastic properties were found to follow consistent variation trends with the KPoWs. As a result, through use of KPoWs, manufacturing parameters have been associated with the effective elastic properties in a systematic manner. This offer means for obtaining a desirable elastic behaviour of 3D woven composites via variation of their internal architecture. The design method developed is the alternative to trial-and-error-based selection method conventionally adopted for this type of materials. As an example of application of the proposed method, a woven composite with balanced weft and warp properties has been designed.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"247 ","pages":"Article 113414"},"PeriodicalIF":7.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651854","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

Designing broadband cross-polarization conversion metasurfaces using binary particle swarm optimization algorithm 利用二元粒子群优化算法设计宽带跨极化转换元面

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-11-01 DOI: 10.1016/j.matdes.2024.113419

Jiao Wang , Wei-Qi Gu , Xin-Cheng Zhao , Yan-Nan Jiang , Kai-Da Xu

{"title":"Designing broadband cross-polarization conversion metasurfaces using binary particle swarm optimization algorithm","authors":"Jiao Wang , Wei-Qi Gu , Xin-Cheng Zhao , Yan-Nan Jiang , Kai-Da Xu","doi":"10.1016/j.matdes.2024.113419","DOIUrl":"10.1016/j.matdes.2024.113419","url":null,"abstract":"<div><div>Owing to their disadvantages of broadband discontinuity, infinite value, or incapability of distinguishing cross-polarization conversions from co-polarization conversions, the traditional linear polarization discrimination methods relating to the phase difference Δφ, the ellipticity angle <em>β</em>, or the axial ratio are inapplicable to the software-based optimal design of broadband cross-polarization conversion metasurfaces (CPMs) consisting of subblocks. Therefore, we introduce the pseudo ellipticity angle <em>β'</em> to characterize the cross-polarization conversion. And based upon the coding metasurfaces and <em>β'</em>, this work first employs the Python-programmed binary particle swarm optimization algorithm to accomplish the optimal design of reflective broadband CPMs. Then, the obtained CPM is further simplified by reprocessing the relatively isolated subblocks, which results in the final CPM. The simulated results show that the final CPM realizes the broadband cross-polarization conversion with <em>β'</em> ≥ 0.4π and a relative bandwidth of 36.1 % from 11.66 GHz to 16.79 GHz. Moreover, the measured results are in excellent agreements with the simulated ones, which validates the proposed design method. It advances the broadband CPMs design from manual to automated method.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"247 ","pages":"Article 113419"},"PeriodicalIF":7.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572837","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

Calibration and surrogate model-based sensitivity analysis of crystal plasticity finite element models 晶体塑性有限元模型的校准和基于代用模型的敏感性分析

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-11-01 DOI: 10.1016/j.matdes.2024.113409

Hugh Dorward , David M. Knowles , Eralp Demir , Mahmoud Mostafavi , Matthew J. Peel

{"title":"Calibration and surrogate model-based sensitivity analysis of crystal plasticity finite element models","authors":"Hugh Dorward , David M. Knowles , Eralp Demir , Mahmoud Mostafavi , Matthew J. Peel","doi":"10.1016/j.matdes.2024.113409","DOIUrl":"10.1016/j.matdes.2024.113409","url":null,"abstract":"<div><div>Crystal plasticity models are powerful tools for predicting the deformation behaviour of polycrystalline materials accounting for underlying grain morphology and texture. These models typically have a large number of parameters, an understanding of which is required to effectively calibrate and apply the model. This study presents a structured framework for the global sensitivity analysis of the effect of crystal plasticity parameters on model outputs. Due to the computational cost of evaluating crystal plasticity models multiple times within a finite element framework, a Gaussian process regression surrogate was constructed and used to conduct the sensitivity analysis. Influential parameters from the sensitivity analysis were carried forward for calibration using both a local Nelder-Mead and global differential evolution optimisation algorithm. The results show that the surrogate based global sensitivity analysis is able to efficiently identify influential crystal plasticity parameters and parameter combinations. Comparison of the Nelder-Mead and differential evolution algorithms demonstrated that only the differential evolution algorithm was able to reliably find the global optimum due to the presence of local minima in the calibration objective function. However, the performance of the differential evolution algorithm was dependent on the optimisation hyperparameters selected.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"247 ","pages":"Article 113409"},"PeriodicalIF":7.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578460","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

Suppress defect-induced plastic instability to achieve superior strength-ductility combination of spray formed 7050 Al alloy 抑制缺陷诱发的塑性不稳定性，实现喷射成型 7050 铝合金优异的强度-电导率组合

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-11-01 DOI: 10.1016/j.matdes.2024.113421

Lifeng Peng , Zhiping Wang , Huanhuan Sun , Tai Luo , Xianfeng Li , Jiwei Geng , Peikang Xia , Yugang Li , Keneng Li , Dong Chen , Gang Sha , Haowei Wang

{"title":"Suppress defect-induced plastic instability to achieve superior strength-ductility combination of spray formed 7050 Al alloy","authors":"Lifeng Peng , Zhiping Wang , Huanhuan Sun , Tai Luo , Xianfeng Li , Jiwei Geng , Peikang Xia , Yugang Li , Keneng Li , Dong Chen , Gang Sha , Haowei Wang","doi":"10.1016/j.matdes.2024.113421","DOIUrl":"10.1016/j.matdes.2024.113421","url":null,"abstract":"<div><div>This research aimed to enhance the strength and ductility of spray formed (SFed) 7050 aluminum (Al) alloy through hot extrusion and subsequent heat treatment. Microstructure and mechanical properties evolution during these processes were investigated. It was found that the low densification of the SFed 7050 Al alloy due to various defects such as pores, with an average size of 7.6 μm and an area fraction of 3.7 % could be notably enhanced by hot extrusion, even achieving a level close to theoretical density. This process led to a transformation of grains from equiaxed to elongated shapes along extrusion direction and significant grain refinement, exhibiting a strong fiber texture. While the employed extrusion ratio exceeds 16 with proper heat treatment, the SFed 7050 Al alloys achieves superior strength-ductility combination compared with reported Al alloys. The achieved high performance should be attributed to the grain refinement, strong texture and high densification that suppress defect-induced plastic instability. Furthermore, the combination of hot extrusion and heat treatment, provides an effective way to enhance strength and ductility for SFed 7050 Al alloy.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"247 ","pages":"Article 113421"},"PeriodicalIF":7.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142572836","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

Dynamic response mechanism of layered coatings under impacts: Insights from the perspective of stress wave 层状涂层在冲击下的动态响应机制：从应力波的角度看问题

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-11-01 DOI: 10.1016/j.matdes.2024.113441

Mai Yang , Rong Tu , Mingquan Jiang , Wei Liu , Tenghua Gao , Baifeng Ji , Jun Li , Song Zhang , Lianmeng Zhang

{"title":"Dynamic response mechanism of layered coatings under impacts: Insights from the perspective of stress wave","authors":"Mai Yang , Rong Tu , Mingquan Jiang , Wei Liu , Tenghua Gao , Baifeng Ji , Jun Li , Song Zhang , Lianmeng Zhang","doi":"10.1016/j.matdes.2024.113441","DOIUrl":"10.1016/j.matdes.2024.113441","url":null,"abstract":"<div><div>Precision machining operations often lead to the failure of protective coatings on cutting tools due to common issues such as cracking, delamination, and peeling from cyclic impacts. While material selection and structural design are crucial for enhancing impact resistance, they primarily focus on static performance with limited consideration from the dynamic sights. This paper presents a novel dynamic design method for coatings, viewed through the lens of stress waves. We investigate the propagation behavior of stress waves in TaN/TiN and CrN/TiN coatings with layered structures. Our findings indicate that the attenuation of stress waves is dominated by the physical properties on both sides of the interface and the stride length. For interfaces with similar physical properties, the attenuation of stress waves is insensitive to the stride length, while for interfaces with different physical properties, the attenuation is regulated by the ratio of single-layer thickness to the full width at half maximum of the stress wave. These insights offer a strategy for extending the life of coatings and improving process safety under dynamic shocks.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"247 ","pages":"Article 113441"},"PeriodicalIF":7.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651917","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

Efficient protection of perovskite nanoparticles in salicylic acid hollow crystal via super simple standing method 通过超简易驻留法有效保护水杨酸中空晶体中的过氧化物纳米粒子

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-11-01 DOI: 10.1016/j.matdes.2024.113418

Cheng Lin Jiang , Andi Magattang Gafur Muchlis , Yi-Ting Tsai , Tsai-Wei Lin , Syang-Peng Rwei , Chun Che Lin

{"title":"Efficient protection of perovskite nanoparticles in salicylic acid hollow crystal via super simple standing method","authors":"Cheng Lin Jiang , Andi Magattang Gafur Muchlis , Yi-Ting Tsai , Tsai-Wei Lin , Syang-Peng Rwei , Chun Che Lin","doi":"10.1016/j.matdes.2024.113418","DOIUrl":"10.1016/j.matdes.2024.113418","url":null,"abstract":"<div><div>Cesium lead bromide (CsPbBr<sub>3</sub>) perovskite nanoparticles (NPs) are widely recognized for their high potential for next-generation optoelectronic devices. However, these NPs’ conventional surface-capped organic ligands with high fluidity are frequently shed from particles during separation and purification steps, significantly reducing their stability. Therefore, a simple method to improve the strength of perovskite NPs is essential. Here, we utilized salicylic acid (SA), which acts as a ligand and protective coating of luminescent NPs, to create CsPbBr<sub>3</sub>@SA crystals using a straightforward standing technique. The CsPbBr<sub>3</sub> NPs were perfectly encapsulated and size-limited in the SA hollow space needle-shaped crystals that retain their significant optical intensity. The fluorescence emission intensity of CsPbBr<sub>3</sub>@SA crystals without additional treatment can be maintained for six weeks under normal ambient conditions, demonstrating the SA ligand’s ability to protect CsPbBr<sub>3</sub> NPs better. Furthermore, the green emission CsPbBr<sub>3</sub>@SA crystals are combined with K<sub>2</sub>SiF<sub>6</sub> red phosphor and packed with a commercially available blue light emitting diode (LED) chip to fabricate a high gamut area white LED device. The highly straightforward standing method successfully enables the high-potential preparation of perovskite nanoparticles for future practical applications.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"247 ","pages":"Article 113418"},"PeriodicalIF":7.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651853","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

A quantitative study of the solute diffusion zone during solidification of Al-Cu alloys via in-situ synchrotron X-radiography and numerical simulation 通过原位同步辐射 X 射线成像和数值模拟对铝铜合金凝固过程中的溶质扩散区进行定量研究

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-11-01 DOI: 10.1016/j.matdes.2024.113398

Yiwang Jia , Xiaojuan Shang , Lang Yuan , Guangkai Yang , Yuanzheng Cao , Da Shu

{"title":"A quantitative study of the solute diffusion zone during solidification of Al-Cu alloys via in-situ synchrotron X-radiography and numerical simulation","authors":"Yiwang Jia , Xiaojuan Shang , Lang Yuan , Guangkai Yang , Yuanzheng Cao , Da Shu","doi":"10.1016/j.matdes.2024.113398","DOIUrl":"10.1016/j.matdes.2024.113398","url":null,"abstract":"<div><div>The solute diffusion zone plays a critical role in determining nucleation efficiency during heterogeneous nucleation. In this study, in-situ synchrotron X-radiography and numerical modeling were employed to investigate the Solute Suppressed Nucleation Zone (SSNZ) surrounding growing equiaxed grains in Al-13Cu alloys. Quantitative analysis of SSNZ and constitutional undercooling was conducted using image processing techniques. Solute concentration and SSNZ length in the <110> direction exceed those in the <100> direction, suggesting higher solute enrichment in dendrite centers. This causes greater undercooling in the dendrite growth direction (<100>) with faster dendrite growth rates. As equiaxed dendrites grow, SSNZ length in the <100> direction decreases while increasing significantly in the <110> direction. Utilizing data obtained from numerical simulations, we refined the analytical equation governing solute distribution preceding the solid–liquid interface under three-dimensional conditions, and the computational equation determining the SSNZ length. The SSNZ lengths derived from the optimized equation along the <100> and <110> directions demonstrate more agreement with both experimental observations and numerical simulation outcomes. Higher growth rates rapidly increase undercooling, limiting the development of nucleation-free zone. Additionally, SSNZ area growth slows at higher cooling rate, correlating with increased solute concentration and reduced area in SSNZ.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"247 ","pages":"Article 113398"},"PeriodicalIF":7.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142553104","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

Antibacterial, antioxidant and barrier properties of clay-doped electrospun fibers 掺粘土电纺纤维的抗菌、抗氧化和阻隔性能

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-11-01 DOI: 10.1016/j.matdes.2024.113405

Amedeo Ungolo , Marco Ruggeri , Barbara Vigani , Pietro Grisoli , Eleonora Bianchi , Cesar Viseras , Silvia Rossi , Giuseppina Sandri

{"title":"Antibacterial, antioxidant and barrier properties of clay-doped electrospun fibers","authors":"Amedeo Ungolo , Marco Ruggeri , Barbara Vigani , Pietro Grisoli , Eleonora Bianchi , Cesar Viseras , Silvia Rossi , Giuseppina Sandri","doi":"10.1016/j.matdes.2024.113405","DOIUrl":"10.1016/j.matdes.2024.113405","url":null,"abstract":"<div><div>Nowadays, packaging technologies have been extensively developed, including active and intelligent packages able to promote quality, safety, and the product shelf life. At this purpose, the aim of the study was focused on the design and development of polyvinyl alcohol-based nanofibers doped with two natural clays, montmorillonite or clinoptilolite, and loaded with chlorogenic acid, as nanofibrous membranes to control microbial contamination and oxidative state upon direct contact. The results showed that the 1 % w/w clay doping was the optimal concentration to obtain continuous and uniform nanofibers. In addition, chlorogenic acid loading (5 % w/w) into the nanofibers did not change the systems morphology, resulting in a chlorogenic acid sustained release, achieving 100 % within 24 h for all the systems with enhanced antioxidant and antimicrobial activities. Depending on their structure, the presence of the clays mineral was able to affect the aqueous vapor permeability. These results suggested the promising applications of the clay doped polyvinyl alcohol-based nanofibrous membranes as smart advanced material able to control microbial contamination and oxidative degradation to be used in biomedical field or as active packaging.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"247 ","pages":"Article 113405"},"PeriodicalIF":7.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142553108","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

Metal additive manufacturing of damage-controlled elements for structural protection of steel members 用于钢构件结构保护的损伤控制元件的金属快速成型技术

IF 7.6 2区材料科学

Materials & Design Pub Date : 2024-11-01 DOI: 10.1016/j.matdes.2024.113428

Hamdy Farhoud , Islam Mantawy

{"title":"Metal additive manufacturing of damage-controlled elements for structural protection of steel members","authors":"Hamdy Farhoud , Islam Mantawy","doi":"10.1016/j.matdes.2024.113428","DOIUrl":"10.1016/j.matdes.2024.113428","url":null,"abstract":"<div><div>This paper develops hybrid steel members by integrating additively manufactured, ultra-lightweight, damage-controlled elements (DCEs) into hot-rolled structural steel members. This approach relies on segmenting a structural member into distinct sections; one or two segments are enlarged to be capacity protected; however, anotherend or middle DCE segment is optimized to emulate theconventional member’s strength and stiffness. A small-scale DCE was topologically optimized and then additively manufactured using apowder bed fusion technique through adirect metal laser sintering process of 17-4PH stainless steel andthen was experimentally tested to study the buckling behavior under compression. The experimental testing of the optimized DCE shows acompressive strength of 81,000 times the specimen’s weight with stable post-peak buckling behavior. Numerical simulation confirms experimental results, showing agood correlation in fracture energy. A parametric study on four DCE specimens, scaled up by three, four, five, and six times, was performed and compared to hollow structural sections (HSS) of A500 Gr. C in tensile and compression strengths. The numerical simulation shows a linear relation between the weight ratio and HSS length. Additionally, numerical simulation of conventional member, DCE (scaled by three), and three hybrid members revealed that failure occurred in DCE as intended.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"247 ","pages":"Article 113428"},"PeriodicalIF":7.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578459","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