Study on the Damage Evolution Mechanism of Fiber‐Reinforced Composite Pipe Under Tensile Load

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Autori principali: Zaixing Zhang, Bing Li, Yazhou Li, Hao Xu, Zhenyu Wu
Natura: Artículo Open Access
Pubblicazione: Wiley 2025
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author Zaixing Zhang
Bing Li
Yazhou Li
Hao Xu
Zhenyu Wu
author_facet Zaixing Zhang
Bing Li
Yazhou Li
Hao Xu
Zhenyu Wu
Zaixing Zhang
Bing Li
Yazhou Li
Hao Xu
Zhenyu Wu
collection Wiley Open Access
contents Study on the Damage Evolution Mechanism of Fiber‐Reinforced Composite Pipe Under Tensile Load Zaixing Zhang Bing Li Yazhou Li Hao Xu Zhenyu Wu Polymer Composites ABSTRACT Fiber‐reinforced composite pipe has gained significant attention due to its high specific strength, high specific modulus, and corrosion resistance, gradually becoming an alternative substitute to traditional metal pipes. However, mechanical behavior and failure mechanisms remain insufficiently understood due to material property heterogeneity and anisotropy. This article independently researches and manufactures UV‐resistant and low‐temperature‐resistant aramid/nylon 12 composite pipes. Full‐scale tensile tests were combined with multi‐scale modeling to develop both macroscopic and mesoscopic mechanical three‐dimensional anisotropic elastoplastic models. The mechanical response and damage mechanism of composite pipes under tensile loads are investigated at both macroscopic and microscopic levels. Three full‐scale tensile tests of the composite pipe (with a maximum ultimate tensile load of 192.177 kN and a maximum tensile elongation at break of 5.22%) demonstrated strong agreement with the finite element analysis results. Building on this, stress analysis and investigation of the damage mechanisms of composite pipes under tensile loads are conducted. The finite element results indicate that, upon reaching the elongation at break, the stress distribution in the reinforcing layer shows a significant disparity. The axial stress (S33 = 597 MPa) carried by the axial reinforcing layer is approximately 5.4 times greater than that of the circumferential reinforcing layer (S33 = 110 MPa). Additionally, the contribution of the inner and outer linings to the tensile bearing energy of the composite pipe is relatively small, with the axial stress being approximately 30 MPa. Fiber fracture and fiber/matrix debonding are the primary failure modes affecting the performance of composite pipes. 10.1002/pc.70488 http://onlinelibrary.wiley.com/termsAndConditions#vor
doi_str_mv 10.1002/pc.70488
format Artículo Open Access
id wiley_oa_10_1002_pc_70488
institution Wiley Open Access
license_str_mv http://onlinelibrary.wiley.com/termsAndConditions#vor
publishDate 2025
publisher Wiley
record_format wiley_oa
spellingShingle Study on the Damage Evolution Mechanism of Fiber‐Reinforced Composite Pipe Under Tensile Load
Zaixing Zhang
Bing Li
Yazhou Li
Hao Xu
Zhenyu Wu
Polymer Composites
Study on the Damage Evolution Mechanism of Fiber‐Reinforced Composite Pipe Under Tensile Load Zaixing Zhang Bing Li Yazhou Li Hao Xu Zhenyu Wu Polymer Composites ABSTRACT Fiber‐reinforced composite pipe has gained significant attention due to its high specific strength, high specific modulus, and corrosion resistance, gradually becoming an alternative substitute to traditional metal pipes. However, mechanical behavior and failure mechanisms remain insufficiently understood due to material property heterogeneity and anisotropy. This article independently researches and manufactures UV‐resistant and low‐temperature‐resistant aramid/nylon 12 composite pipes. Full‐scale tensile tests were combined with multi‐scale modeling to develop both macroscopic and mesoscopic mechanical three‐dimensional anisotropic elastoplastic models. The mechanical response and damage mechanism of composite pipes under tensile loads are investigated at both macroscopic and microscopic levels. Three full‐scale tensile tests of the composite pipe (with a maximum ultimate tensile load of 192.177 kN and a maximum tensile elongation at break of 5.22%) demonstrated strong agreement with the finite element analysis results. Building on this, stress analysis and investigation of the damage mechanisms of composite pipes under tensile loads are conducted. The finite element results indicate that, upon reaching the elongation at break, the stress distribution in the reinforcing layer shows a significant disparity. The axial stress (S33 = 597 MPa) carried by the axial reinforcing layer is approximately 5.4 times greater than that of the circumferential reinforcing layer (S33 = 110 MPa). Additionally, the contribution of the inner and outer linings to the tensile bearing energy of the composite pipe is relatively small, with the axial stress being approximately 30 MPa. Fiber fracture and fiber/matrix debonding are the primary failure modes affecting the performance of composite pipes. 10.1002/pc.70488 http://onlinelibrary.wiley.com/termsAndConditions#vor
title Study on the Damage Evolution Mechanism of Fiber‐Reinforced Composite Pipe Under Tensile Load
topic Polymer Composites
url https://4spepublications.onlinelibrary.wiley.com/doi/10.1002/pc.70488