scholarly journals Inelastic Deformation and Failure Analysis of Filament-Wound Composite Structures

1988 ◽  
Author(s):  
Gerald Wempner ◽  
Wan-Lee Yin
1996 ◽  
Author(s):  
J. Wlodarski ◽  
Charles Pergantis ◽  
Thomas Mulkern ◽  
James Kleinmeyer

Author(s):  
Soo-Jeong Park ◽  
Yun-Hae Kim

The failure mechanism of composites dominates the matrix, fiber and interface, and in general, the matrix corresponds to the definitive cause of damage. A filament–wound composite structure involves a notable bridging effect owing to the matrix between the layers, and particle additives are generally adopted to strengthen the matrix. However, particle additives exhibit a low performance when applied to structures, owing to the dispersibility and particle agglomeration. In this study, the strengthening performance of carbon nanotube (CNT)/epoxy interleaves was experimentally verified to facilitate their implementation in the structural design of a filament–wound cylinder structure. The burst pressure, compression, bending and interfacial bonding strength of the cylinder improved by approximately 20%, 161%, 16% and 36%, respectively, and the positioning of CNT/epoxy interleaves was a more notable influencing factor compared to the proportion of CNTs in the entire winding layer. The number of macro voids decreased inside the epoxy modified CNT. The findings demonstrated that the incorporation of CNTs through CNT/epoxy interleaves could facilitate the matrix strengthening and enhance the interfacial bonding.


2008 ◽  
Vol 32 (2) ◽  
pp. 23-30
Author(s):  
T. Niblock ◽  
B.C. Laskowski ◽  
P.L. Howard ◽  
T.K. Ooi

2020 ◽  
Vol 54 (19) ◽  
pp. 2651-2659 ◽  
Author(s):  
Cristiano B Azevedo ◽  
José Humberto S Almeida Jr ◽  
Heitor F Flores ◽  
Frederico Eggers ◽  
Sandro C Amico

The mechanical response of composite structures may be affected by harsh environments, particularly when the matrix has a major contribution, e.g. with off-axis plies. This study aims at investigating the influence of the winding pattern on the axial compressive behavior of filament wound composite cylinder under hygrothermal conditioning. Carbon fiber-reinforced epoxy cylinders were manufactured via filament winding with 1/1, 3/1, and 5/1 mosaic winding patterns and submitted to distilled and artificial seawater environmental conditioning. Water uptake for each hygrothermal conditioning was periodically monitored. The winding pattern influenced both compressive strength and stiffness, and the environmental conditioning decreased strength up to ≈10%. The winding pattern with three diamonds around the circumference of the cylinders provides the properties in term of compressive strength and stiffness.


2018 ◽  
Vol 27 (2) ◽  
pp. 096369351802700 ◽  
Author(s):  
Chuangshi Shen ◽  
Xiaoping Han

The occurrence of fibre crossover and undulation(FCU) is inherent of the filament windingproc ess. However, the study on the effect of FCU on the mechanical performance and failure of filament wound composite(FWC) structure were mainly experimental research. So in this paper, a macro-meso failure analysis model for FWC considering FCU is established based on Puck, Hashin failure criterion and Linde stiffness degradation model. The influence of fibre crossove r and undulation on the stiffness failure is calculated and analyzed. The numerical results show that the strain in FCU region is higher by about 1.07–1.13 times than it in laminate region, the FCU have a certain influence on the failure strength of filament wound composite and the failure position of FWC under axial tensile load and internal pressure is mainly located FCU region and the failure position under axial compressive load is related to the winding angle.


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