Mechanical response of filament wound composite rings under tension and compression

被引：41

作者：

Eggers, Frederico ^{[1
]}

Almeida, Jose Humberto S., Jr. ^{[2
]}

Azevedo, Cristiano B. ^{[1
]}

Amico, Sandro C. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, PPGE3M, Av Bento Goncalves 9500, BR-91501970 Porto Alegre, RS, Brazil

[2] Leibniz Inst Polymer Res Dresden, Mech & Composite Mat Dept, Hohe Str 6, D-01069 Dresden, Germany

来源：

POLYMER TESTING | 2019年 / 78卷

关键词：

Filament winding; Geometric parameters; Composite rings; Experimental testing; FAILURE; BEHAVIOR; DAMAGE; TUBES; PIPES; GFRP;

D O I：

10.1016/j.polymertesting.2019.105951

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This study aims at evaluating the influence of the winding angle, stacking sequence and diameter-to-thickness ratio on the mechanical response of composite rings subjected to radial compression, axial compression and hoop tensile loadings. The rings were obtained from filament wound tubes. The rings were found highly dependent on the winding angle, i.e. the specimens with fibers at +/- 90 degrees presented the best radial compressive characteristics, whereas those wound at +/- 60 degrees performed best under axial compression, and apparent hoop tensile strength determined via split disk testing was higher for rings wound at +/- 90 degrees. All rings were dependent on the diameter-to-thickness ratio. Failure was studied through micrographs of post-mortem specimens. The dominant failure modes for radial compression, axial compression and hoop tensile loadings were, respectively, delamination, delamination and minor off-axis cracks, and fiber/matrix debonding and fiber breakage.

引用

页数：8

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