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Experimental evaluation of mechanical compression of lattice trusses made with Ti6Al4V for aerospace use
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作者 Carlo Giovanni FERRO Sara VARETTI Paolo MAGGIORE 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2024年第5期520-532,共13页
Lattice structures are three-dimensional structures composed of repeated geometrical shapes with multiple interconnected nodes,providing high strength-to-weight ratios,customizable properties,and efficient use of mate... Lattice structures are three-dimensional structures composed of repeated geometrical shapes with multiple interconnected nodes,providing high strength-to-weight ratios,customizable properties,and efficient use of materials.A smart use of materials leads to reduced fuel consumption and lower operating costs,making them highly desirable for aircraft manufacturers.Furthermore,the customizable properties of lattice structures allow for tailoring to specific design requirements,leading to improved performance and safety for aircraft.These advantages make lattice structures an important focus for research and development in the aviation industry.This paper presents an experimental evaluation of the mechanical compression properties of lattice trusses made with Ti6Al4V,designed for use in an anti-ice system.The truss structures were manufactured using additive manufacturing techniques and tested under compressive loads to determine mechanical properties.Results showed that lattice trusses exhibited high levels of compressive strength,making them suitable for use in applications where mechanical resistance and durability are critical,such as in anti-ice systems.We also highlight the potential of additive manufacturing techniques for the fabrication of lattice trusses with tailored mechanical properties.The study provides valuable insights into the mechanical behavior of Ti6Al4V lattice trusses and their potential applications in anti-ice systems,as well as other areas where high strength-to-weight ratios are required.The results of this research contribute to the development of lightweight,efficient,and durable anti-ice systems for use in aviation and other industries. 展开更多
关键词 Additive Manufacturing(AM) Selective Laser Sintering(SLM) Anti ice systems Lattice structures Aircraft on board systems Design of experiments(DOE)
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卫星搭载试验—空间辐射对氧化物功能晶体的影响
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作者 冯锡淇 刘建成 《无机材料学报》 SCIE EI CAS CSCD 北大核心 1991年第1期1-4,共4页
在我国的科学探测和技术实验卫星上进行了多种氧化物材料的搭载试验,以研究空间辐射对这类材料的影响。把经过八天搭载的样品与留在地面样品进行对比测试后发现:Bi_4(GeO_4)_3∶Fe 晶体的光吸收略有增加,并呈现辐射感应热释光响应,热释... 在我国的科学探测和技术实验卫星上进行了多种氧化物材料的搭载试验,以研究空间辐射对这类材料的影响。把经过八天搭载的样品与留在地面样品进行对比测试后发现:Bi_4(GeO_4)_3∶Fe 晶体的光吸收略有增加,并呈现辐射感应热释光响应,热释光响应曲线的峰值位置和形状与紫外线辐照的效果相似,这表明空间辐射已在该晶体中产生一定浓度的色心。LiF 热释光片的测试结果也证实这一点。在如此短暂的时间内已在氧化物材料中产生可以测量的物理性质变化的事实表明,对于长期留空的空间飞行器来说,这类飞行器中使用的多种氧化物功能材料和器件的抗辐射措施是必须考虑的。 展开更多
关键词 氧化物 空间辐射 卫星搭载试验
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