Mixed Mode I/II Fracture Performance and Mode Mixity of GFRP ‐Balsa Interfaces in Sandwich Structures

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Main Authors: Huiyuan Shi, Baisainan Ge, Baijian Tang, Zhiyuan Xia, Shaocong Yan, Hai Fang
Format: Artículo Open Access
Published: Wiley 2025
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author Huiyuan Shi
Baisainan Ge
Baijian Tang
Zhiyuan Xia
Shaocong Yan
Hai Fang
author_facet Huiyuan Shi
Baisainan Ge
Baijian Tang
Zhiyuan Xia
Shaocong Yan
Hai Fang
Huiyuan Shi
Baisainan Ge
Baijian Tang
Zhiyuan Xia
Shaocong Yan
Hai Fang
collection Wiley Open Access
contents Mixed Mode I/II Fracture Performance and Mode Mixity of GFRP ‐Balsa Interfaces in Sandwich Structures Huiyuan Shi Baisainan Ge Baijian Tang Zhiyuan Xia Shaocong Yan Hai Fang Polymer Composites ABSTRACT This study focuses on lightweight balsa‐core composite sandwich structures suitable for engineering applications and investigates the interface peeling performance of glass fiber reinforced polymer and balsa wood sandwich beams through single‐leg bending beam tests. The mixed Mode I/II interface peeling process and failure mode of the sandwich beams were characterized. The mechanism of the interface peeling failure under static loads was analyzed. The influence of span‐to‐depth ratio, number of face sheet layers, fiber laying angle, and processing method on interface peeling performance was summarized. The strain energy release rate for mixed Mode I/II fracture was calculated using classical plate theory and an energy‐based method. Based on the elastic foundation beam theory, the Mode I strain energy release rate was derived, and the mode mixity was determined by decomposing the total mixed‐mode energy release rate. 10.1002/pc.70414 http://onlinelibrary.wiley.com/termsAndConditions#vor
doi_str_mv 10.1002/pc.70414
format Artículo Open Access
id wiley_oa_10_1002_pc_70414
institution Wiley Open Access
license_str_mv http://onlinelibrary.wiley.com/termsAndConditions#vor
publishDate 2025
publisher Wiley
record_format wiley_oa
spellingShingle Mixed Mode I/II Fracture Performance and Mode Mixity of GFRP ‐Balsa Interfaces in Sandwich Structures
Huiyuan Shi
Baisainan Ge
Baijian Tang
Zhiyuan Xia
Shaocong Yan
Hai Fang
Polymer Composites
Mixed Mode I/II Fracture Performance and Mode Mixity of GFRP ‐Balsa Interfaces in Sandwich Structures Huiyuan Shi Baisainan Ge Baijian Tang Zhiyuan Xia Shaocong Yan Hai Fang Polymer Composites ABSTRACT This study focuses on lightweight balsa‐core composite sandwich structures suitable for engineering applications and investigates the interface peeling performance of glass fiber reinforced polymer and balsa wood sandwich beams through single‐leg bending beam tests. The mixed Mode I/II interface peeling process and failure mode of the sandwich beams were characterized. The mechanism of the interface peeling failure under static loads was analyzed. The influence of span‐to‐depth ratio, number of face sheet layers, fiber laying angle, and processing method on interface peeling performance was summarized. The strain energy release rate for mixed Mode I/II fracture was calculated using classical plate theory and an energy‐based method. Based on the elastic foundation beam theory, the Mode I strain energy release rate was derived, and the mode mixity was determined by decomposing the total mixed‐mode energy release rate. 10.1002/pc.70414 http://onlinelibrary.wiley.com/termsAndConditions#vor
title Mixed Mode I/II Fracture Performance and Mode Mixity of GFRP ‐Balsa Interfaces in Sandwich Structures
topic Polymer Composites
url https://4spepublications.onlinelibrary.wiley.com/doi/10.1002/pc.70414