scholarly journals Development of the composite material structure by the Japan Aircraft Development Corporation.

1986 ◽  
Vol 12 (4) ◽  
pp. 145-156 ◽  
Author(s):  
Koichi HIRAOKA
Keyword(s):  
Composite Material ◽  
Material Structure ◽  
Development Corporation

scholarly journals Clinching of Thermoplastic Composites and Metals—A Comparison of Three Novel Joining Technologies

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2286
Author(s):  
Benjamin Gröger ◽  
Juliane Troschitz ◽  
Julian Vorderbrüggen ◽  
Christian Vogel ◽  
Robert Kupfer ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Composite Material ◽  
Process Design ◽  
Failure Mechanisms ◽  
Thermoplastic Composites ◽  
Material Structure ◽  
Shear Tests ◽  
Load Bearing ◽  
Lap Shear ◽  
Resultant Material

Clinching continuous fibre reinforced thermoplastic composites and metals is challenging due to the low ductility of the composite material. Therefore, a number of novel clinching technologies has been developed specifically for these material combinations. A systematic overview of these advanced clinching methods is given in the present paper. With a focus on process design, three selected clinching methods suitable for different joining tasks are described in detail. The clinching processes including equipment and tools, observed process phenomena and the resultant material structure are compared. Process phenomena during joining are explained in general and compared using computed tomography and micrograph images for each process. In addition the load bearing behaviour and the corresponding failure mechanisms are investigated by means of single-lap shear tests. Finally, the new joining technologies are discussed regarding application relevant criteria.

scholarly journals Composite Material Damage Processes

2020 ◽  
Vol 3 (3) ◽  
pp. 307-323
Author(s):  
Davor Bolf ◽  
Albert Zamarin ◽  
Robert Basan
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Material Structure ◽  
Material Damage ◽  
Shipbuilding Industry ◽  
Vast Number ◽  
Damage And Fracture ◽  
Control Procedures ◽  
Material Fracture ◽  
Damage Processes

Composite materials are in use in the shipbuilding industry for a long period of time. Composites appear in vast number of fibre – matrix combinations and can be produced with several different production processes. Due to the specific nature of the composite material structure, the selection of the production process and the limitations in the quality control procedures, composite materials will always be subject to defects and imperfections which may, under certain circumstances, lead to the appearance and propagation of cracks. The size and the shape of the crack, the load type and the stress field in the material surrounding the crack will be crucial for crack growth and crack propagation. This paper reviews the composite material damage processes especially relevant for shipbuilding. The basic principles of composite material fracture mechanics are briefly explained, and finally, mechanisms responsible for the development of damage and fracture of composite materials are presented. This paper has emerged from the need to summarize information about composite material fracture and failure mechanisms and modes relevant for the shipbuilding industry.

scholarly journals Low-speed impact damage analysis of aviation composite material structure

2021 ◽  
Vol 260 ◽  
pp. 03021
Author(s):  
Jun He ◽  
Meng Cao ◽  
Zhishu Wang ◽  
Fanglin Cong
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Composite Material ◽  
Composite Structures ◽  
Impact Damage ◽  
Low Velocity Impact ◽  
Material Structure ◽  
Damage Analysis ◽  
Low Speed ◽  
The Impact

Although the carbon fiber reinforced composite material has high specific strength and stiffness, design-versatility, anti-corrosion and other excellent features, but the impact resistance of composite structures is poor. Therefore, the composite laminates low-speed damage analysis has important significance. Based on a three-dimensional analysis theory of cumulative damage, using the commercial finite element analysis software ABAQUS to establish laminates subjected to low velocity impact finite element model. according to the numerical results and the consistency of the test results, shows that the used model of the article is reasonable and accurate, and the numerical simulation method is verified to be feasible. Finally, through the numerical simulation of process of laminated plates low speed impact damage, the damage characteristics and damage mechanism of the laminates at different times are analyzed, and the forming reasons and expanding rules of the main damage forms of fiber damage and matrix damage are revealed.

Influence of temperature, shrinkage and water on the wood composite material structure

2015 ◽  
Vol 8 (2) ◽  
pp. 45-49 ◽  
Author(s):  
Стородубцева ◽  
Tamara Storodubtseva
Keyword(s):  
Composite Material ◽  
Negative Impact ◽  
Youth Programs ◽  
Material Structure ◽  
Wood Composite ◽  
Influence Of Temperature ◽  
Voronezh Region

The influence of such factors as temperature, shrinkage and water in the wood filler, and, in general, on the wood composite material, are very serious reasons, the negative impact on the solidity of the structure of the object. This article presents the results of research on the project, to win the competition awards the Youth Government of the Voronezh region, with the support of youth programs and projects.

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