The effects of stacking sequence on drilling machinability of filament wound hybrid composite pipes: Part-2 damage analysis and surface quality

2020 ◽  
Vol 235 ◽  
pp. 111737 ◽  
Author(s):  
Lokman Gemi ◽  
Sezer Morkavuk ◽  
Uğur Köklü ◽  
Şakir Yazman
Keyword(s):  
Surface Quality ◽  
Hybrid Composite ◽  
Stacking Sequence ◽  
Damage Analysis ◽  
Filament Wound ◽  
Composite Pipes

Comparative Damage Analysis of Impact Induced Traditional and Graded Filament Wound Glass Fiber/Epoxy Composite Pipes

2018 ◽  
Vol 923 ◽  
pp. 17-21 ◽  
Author(s):  
Sandeep S. Ahankari ◽  
Atul Suryawanshi ◽  
Udayraj Warerkar
Keyword(s):  
Glass Fiber ◽  
Impact Analysis ◽  
Fiber Composite ◽  
Processing Parameters ◽  
Functionally Graded ◽  
Filament Winding ◽  
Stacking Sequence ◽  
Damage Analysis ◽  
Filament Wound ◽  
Composite Pipes

Epoxy-glass fiber composite pipes were fabricated with filament winding machine. Full automation and precise control over the processing parameters are the major advantages of this manufacturing technique. Stacking sequence is one of the important processing parameters on which the properties of filament wound components depend to a large extent. This paper comes up with a comparative damage analysis of traditional composite pipes (TCPs) of stacking sequence [±55]6, and functionally graded composite pipes (FGCP) of stacking sequence [70-55-40-40-55-70]. The stacking sequence in FGCP was chosen such that the average stacking angle is retained the same as of TCPs, i.e. [±55]. An impact analysis of these pipes was carried out. Impact energy of 45 J was applied on both pipes and damage was quantified using back-lighting technique. It was observed that the damage occurred in FGCPs was 30% lesser compared to TCPs.

Micro Mechanical Model of Filament Wound Composite Pipe With Damage Analysis

2006 ◽  
Author(s):  
Chuwei Zhou ◽  
Zihui Xia ◽  
Qiaoling Yong
Keyword(s):  
Structural Analysis ◽  
Mechanical Model ◽  
Local Stress ◽  
Filament Winding ◽  
Low Velocity Impact ◽  
Damage Analysis ◽  
Low Velocity ◽  
Filament Wound ◽  
Composite Pipes ◽  
Structural Scale

Filament winding (FW) is one of the most common techniques for manufacturing composite pipes. The material properties and failure mechanism of composite pipes depend largely on winding pattern. In this study a micro mechanical approach for filament wound composites (FWCs) is pursued. A diamond-shaped repeated unit cell (RUC) is first constructed which characterizes the micro architecture of FWC pipe, such as winding angel, shift between successive circuits and the area of local undulation region. The micro mechanical model is embedded into commercial FEM code of ABAQUS as user-defined subroutine thus the link between the analyses in macro engineering structural scale and in micro material structural scale is established. By averaging micro stiffness constants over the cell macro ones needed for engineering structural analysis can be obtained. On the other hand, the macro structural analysis provides average stresses/strains of the cell locating at any concerned region of the macro structure for local stress and damage analysis. Effects of tow undulation caused by tow crossover on micro stresses are taken into accounted. The model is applied to glass/epoxy wound pipes with various winding angles and winding shifts. Mechanical properties are predicted and damage evolutions are simulated. The effects of delamination damage, usually introduced by lateral low velocity impact, on stiffness and ultimate strength of FWC pipe are also investigated.

Tolerance of Composite Pipes to Local Impact Damage

1996 ◽  
Vol 210 (3) ◽  
pp. 181-192 ◽  
Author(s):  
S R Reid ◽  
C Peng ◽  
J N Ashton
Keyword(s):  
Damage Tolerance ◽  
Impact Damage ◽  
Local Loading ◽  
Experimental Programme ◽  
Filament Wound ◽  
Nose Shape ◽  
Local Impact ◽  
Chopped Strand Mat ◽  
Composite Pipes

The results of an extensive experimental programme on local loading of composite pipes are presented. Particular attention is directed to the influence of projectile nose shape on the damage tolerance of the pipes. Both filament wound pipes and lined chopped-strand mat pipes are considered.

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