Image driven analysis of plates coated by cold spray coating process using a layerwise approach

Mota A. F.; Loja M. A. R.; Singh H.; Kalsi S. B. S.; Infante Barbosa J.

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Image driven analysis of plates coated by cold spray coating process using a layerwise approach

机译：用层状方法，冷藏涂层工艺涂层平板的图像驱动分析

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Functionally graded materials are characterized by its continuous spatial properties' variation which provides them a better behaviour concerning strain and stress transition, hence avoiding the abrupt changes typical of composite fibre reinforced laminates.Although manufacturing systems and techniques used in the production of such materials has evolved significantly, porosities may arise as non-desirable characteristic. Other situations exist where pores are desirable as they may contribute to a specific better performance. Regardless the specific application, it is expected that mechanical properties of graded material will be affected by the existence of porosities.This work presents a study on the static and free vibrations behaviour of plates constituted by a substrate coated by the cold spray coating process. This coating presents inherent porosities which distribution matters to characterize in order to assess its influence on the plate behaviour. To this purpose, a layerwise approach considering the first order shear deformation theory was used, in order to be able to carry out a more representative study of the system substrate-coating. The results obtained show that for a small relation between the coating thickness and the plate's total thickness, the relative deviations obtained, considering the porosity-free coating plate as reference, denotes no evidence of significant influence of the number of terms on the volume fraction approximation, for the static and free vibrations results.

机译：功能梯度材料的特征在于其连续的空间性质的变化，其为它们提供了更好的关于应变和应力过渡的行为，因此避免了复合纤维增强层压板的突然变化。虽然用于生产这些材料的制造系统和技术已经进化显着地，孔隙率可能是不合而望的特征。存在孔隙所需的其他情况，因为它们可能有助于特定的更好的性能。无论具体的应用如何，预计渐变材料的机械性能都会受到孔隙率存在的影响。这项工作提出了由冷喷涂方法涂覆的基材构成的板构成的平板的静态和自由振动行为的研究。该涂层呈现固有的孔隙座，分布的特征是为了评估其对板行为的影响。为此目的，考虑第一阶剪切变形理论的层是一种层的方法，以便能够进行系统基材涂层的更代表性的研究。得到的结果表明，对于涂层厚度和板的总厚度之间的小关系，考虑到无孔隙涂层作为参考的相对偏差，表示没有显着影响体积分数近似的术语数量的显着影响，对于静态和自由振动结果。

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来源
《Composite Structures》 |2021年第4期|113250.1-113250.15|共15页
作者
Mota A. F.; Loja M. A. R.; Singh H.; Kalsi S. B. S.; Infante Barbosa J.;
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作者单位

IPL Inst Politecn Lisboa CIMOSM Ctr Invest Modelacao & Optimizacao Sistema ISEL Lisbon Portugal;

IPL Inst Politecn Lisboa CIMOSM Ctr Invest Modelacao & Optimizacao Sistema ISEL Lisbon Portugal|Univ Lisbon Inst Super Tecn IDMEC Lisbon Portugal;

Guru Nanak Dev Univ Dept Mech Engn Amritsar Punjab India;

IK Gujral Punjab Tech Univ Dept Mech Engn Kapurthala Punjab India;

IPL Inst Politecn Lisboa CIMOSM Ctr Invest Modelacao & Optimizacao Sistema ISEL Lisbon Portugal|Univ Lisbon Inst Super Tecn IDMEC Lisbon Portugal;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Porosities; Graded material; Cold spray coating; Layerwise; Image processing;

机译：孔隙率;分级材料;冷喷涂;层状;图像处理;

Image driven analysis of plates coated by cold spray coating process using a layerwise approach

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