SAMPE 2019 - Charlotte, NC最新文献

Design, Manufacturing and Testing of a Rotorcraft Access Panel Door From Recycled Carbon Fiber Reinforced Polyphenylenesulfide 回收碳纤维增强聚苯硫醚旋翼机检修板门的设计、制造和试验

SAMPE 2019 - Charlotte, NC Pub Date : 2019-05-23 DOI: 10.33599/NASAMPE/S.19.1437

T. D. Bruijn, Guillaume Almire Vincent, Johan Meuzelaar, J. Nunes, F. Hattum

{"title":"Design, Manufacturing and Testing of a Rotorcraft Access Panel Door From Recycled Carbon Fiber Reinforced Polyphenylenesulfide","authors":"T. D. Bruijn, Guillaume Almire Vincent, Johan Meuzelaar, J. Nunes, F. Hattum","doi":"10.33599/NASAMPE/S.19.1437","DOIUrl":"https://doi.org/10.33599/NASAMPE/S.19.1437","url":null,"abstract":"An integrally-stiffened access panel for a rotorcraft is selected for detail design, testing and actual flight to demonstrate a novel recycling route for thermoplastic composites. The design, development and validation followed the ‘Building Block approach’. The material used is postindustrial carbon fiber reinforced polyphenylene sulfide waste. This material originates from thermoplastic components of the very same rotorcraft as the panel will be mounted on, improving traceability, logistics and fixing supply and demand. Material data have been gathered from mechanical tests and was used to predict the strength and stiffness of the panel. A critical design detail was selected and tested for validation. This section was included in a manufacturing demo, along with other integrated design features, enabling testing the processability. The final panel design was successfully produced and tested on component level. The re-manufacturing process includes simultaneously applied heat and low-shear mixing, followed by compression molding in an isothermal mold. This offers the possibility to retain long fibers and therefore high mechanical properties at short cycle times. In comparison to the current carbon/epoxy solution, the resulting product is lighter, significantly more cost-effective and made of recycled material (fiber and matrix). The prototype panel is targeted for flight testing on the rotorcraft in 2019.","PeriodicalId":162077,"journal":{"name":"SAMPE 2019 - Charlotte, NC","volume":"1241 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134479960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

New Method of Interfacial and Micro-damage Sensing of Composites Via Pencil Lead Drawing Paper Sensor (PLDPS) and Electrical Resistance (ER) Mapping 基于铅笔画纸传感器(PLDPS)和电阻(ER)映射的复合材料界面和微损伤传感新方法

SAMPE 2019 - Charlotte, NC Pub Date : 2019-04-11 DOI: 10.33599/NASAMPE/S.19.1381

Joung-Man Park, Ha-Seung Park, P. Shin, Jong-Hyun Kim, Y. Baek, L. DeVries

引用次数: 0

Geometric Constraints for the Topology Optimization of Structures Made of Primitives 基元结构拓扑优化的几何约束

SAMPE 2019 - Charlotte, NC Pub Date : 2019-04-11 DOI: 10.33599/NASAMPE/S.19.1518

Hollis Smith, J. Norato

{"title":"Geometric Constraints for the Topology Optimization of Structures Made of Primitives","authors":"Hollis Smith, J. Norato","doi":"10.33599/NASAMPE/S.19.1518","DOIUrl":"https://doi.org/10.33599/NASAMPE/S.19.1518","url":null,"abstract":"This paper presents a topology optimization method for the design of 2and 3-dimensional structures composed of bars in which the joining locations and the angles between adjacent bars can be controlled through optimization constraints. The topology optimization is performed using the geometry projection method, whereby the parametric description of the bars is smoothly mapped onto a fixed finite element mesh for analysis. By directly designing the geometric parameters of the bars as opposed to, for example, the element-wise densities or nodewise level set values of conventional topology optimization approaches, this method readily facilitates constraints on the geometry. This ability is leveraged in this work to impose a minimum angle between adjacent members, and to define regions of the geometry in which connections between components may be allowed or prevented so as to produce designs that are readily manufacturable. Even though these geometric constraints are presented in the context of the design with isotropic components, they can be readily extended to design with primitives made of anisotropic materials. The applicability of this methodology is demonstrated by several numerical examples.","PeriodicalId":162077,"journal":{"name":"SAMPE 2019 - Charlotte, NC","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124849054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Composites Workforce, The Next Generation Outreach Through the Composite Materials Merit Badge 复合材料劳动力，通过复合材料优异徽章的下一代外展

SAMPE 2019 - Charlotte, NC Pub Date : 2019-04-11 DOI: 10.33599/NASAMPE/S.19.1567

D. Stone, M. Violette

引用次数: 0

Effect of Graphene Nanoplatelets on Morphology and Property Enhancement of Immiscible Polycarbonate/poly(lactic Acid) Blends 石墨烯纳米片对非混相聚碳酸酯/聚乳酸共混物形态和性能增强的影响

SAMPE 2019 - Charlotte, NC Pub Date : 2019-04-11 DOI: 10.33599/NASAMPE/S.19.1452

Z. Mohammed, S. Jeelani, V. Rangari

引用次数: 0

Technical Cost Modeling Methodology for Novel Manufacturing 新型制造的技术成本建模方法

SAMPE 2019 - Charlotte, NC Pub Date : 2019-04-11 DOI: 10.33599/NASAMPE/S.19.1490

Robin J. Glebes, J. Dustin, Jan-Anders E. Mansson

{"title":"Technical Cost Modeling Methodology for Novel Manufacturing","authors":"Robin J. Glebes, J. Dustin, Jan-Anders E. Mansson","doi":"10.33599/NASAMPE/S.19.1490","DOIUrl":"https://doi.org/10.33599/NASAMPE/S.19.1490","url":null,"abstract":"The automotive industry’s interest in utilizing composites within mainstream production vehicles continues to expand as it seeks methods to meet increasingly strict mileage and emissions regulations. However, traditional costing methods are incapable of determining the manufacturing costs associated with the novel materials and manufacturing processes required for high volume production of composite parts due to the lack of historical manufacturing information. This research effort develops a method that reduces the complex composite manufacturing systems to fungible, upgradable, and linkable individual processes. Employing Technical Cost Modeling (TCM), this method shall accurately quantify the value of pursuing composite manufacturing by integrating technical data from computer-aided part design simulation tools and manufacturing process modeling to deliver an accurate cost estimate. We investigate one high-volume capable, novel manufacturing process appealing to the automotive industry: hybrid molding. In hybrid molding, a structural preform is over-molded with a thermoplastic to create the final part. The Composite Manufacturing & Simulation Center has developed an intensive part performance design model to determine optimal processing conditions which are used as process inputs for the TCM.","PeriodicalId":162077,"journal":{"name":"SAMPE 2019 - Charlotte, NC","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114376095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Compression Experiment and Simulation Study of Shape Memory Alloy Lattice Structure 形状记忆合金晶格结构压缩实验与仿真研究

SAMPE 2019 - Charlotte, NC Pub Date : 2019-04-11 DOI: 10.33599/NASAMPE/S.19.1463

S. Chu, Jie Lu

引用次数: 0

Experimental Investigation of Spring-back Behavior of Composite Sandwich Structures: Part One 复合材料夹层结构回弹性能试验研究:第一部分

SAMPE 2019 - Charlotte, NC Pub Date : 2019-04-11 DOI: 10.33599/NASAMPE/S.19.1507

T. Vo, J. Poulsen, A. Palmer, Lucas Stallbaumer

引用次数: 0

Cyclic Response of Smart Sensing Layer for Insitu Structural Health Monitoring of Composite Materials 复合材料原位结构健康监测智能传感层的循环响应

SAMPE 2019 - Charlotte, NC Pub Date : 2019-04-11 DOI: 10.33599/NASAMPE/S.19.1460

Z. Khan, S. Nauman, M. Walid

引用次数: 0

Effects of Carbon Nanofiber Z-Threads on the Longitudinal Compressive Strength of Unidirectional CFRP Laminates 纳米碳纤维z型螺纹对单向CFRP复合材料纵向抗压强度的影响

SAMPE 2019 - Charlotte, NC Pub Date : 2019-04-11 DOI: 10.33599/NASAMPE/S.19.1531

S. Kirmse, Keonhyeong Kim, B. Ranabhat, K. Hsiao

引用次数: 5