Flexural fatigue behavior and life prediction of web reinforced GFRP-balsa sandwich beams

Huiyuan Shi; Hai Fang; Weiqing Liu; Zhiyuan Xia

doi:10.1016/j.ijfatigue.2020.105592

Flexural fatigue behavior and life prediction of web reinforced GFRP-balsa sandwich beams

Huiyuan Shi, Hai Fang, Weiqing Liu, Zhiyuan Xia

School of Civil Engineering

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

This paper investigated static and fatigue bending behavior of sandwich beams using glass fiber reinforced polymer (GFRP) as skins and webs while balsa wood as core The failure modes, S-N curves, load-deflection behavior and stiffness degradation were obtained and compared The results showed that the fatigue failure modes of web reinforced sandwich beams varied with the web setting and load grade The web setting changed the failure mechanism and the materials were utilized in varying degrees in different specimens Fatigue life model based on damage modulus was proposed and proved appropriate to predict the fatigue damage and ultimate life.

Original language	English
Article number	105592
Journal	International Journal of Fatigue
Volume	136
DOIs	https://doi.org/10.1016/j.ijfatigue.2020.105592
State	Published - Jul 2020

Keywords

Damage
Fatigue
GFRP
Life prediction
Sandwich

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10.1016/j.ijfatigue.2020.105592

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title = "Flexural fatigue behavior and life prediction of web reinforced GFRP-balsa sandwich beams",

abstract = "This paper investigated static and fatigue bending behavior of sandwich beams using glass fiber reinforced polymer (GFRP) as skins and webs while balsa wood as core The failure modes, S-N curves, load-deflection behavior and stiffness degradation were obtained and compared The results showed that the fatigue failure modes of web reinforced sandwich beams varied with the web setting and load grade The web setting changed the failure mechanism and the materials were utilized in varying degrees in different specimens Fatigue life model based on damage modulus was proposed and proved appropriate to predict the fatigue damage and ultimate life.",

keywords = "Damage, Fatigue, GFRP, Life prediction, Sandwich",

author = "Huiyuan Shi and Hai Fang and Weiqing Liu and Zhiyuan Xia",

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AU - Shi, Huiyuan

AU - Fang, Hai

AU - Liu, Weiqing

AU - Xia, Zhiyuan

PY - 2020/7

Y1 - 2020/7

N2 - This paper investigated static and fatigue bending behavior of sandwich beams using glass fiber reinforced polymer (GFRP) as skins and webs while balsa wood as core The failure modes, S-N curves, load-deflection behavior and stiffness degradation were obtained and compared The results showed that the fatigue failure modes of web reinforced sandwich beams varied with the web setting and load grade The web setting changed the failure mechanism and the materials were utilized in varying degrees in different specimens Fatigue life model based on damage modulus was proposed and proved appropriate to predict the fatigue damage and ultimate life.

AB - This paper investigated static and fatigue bending behavior of sandwich beams using glass fiber reinforced polymer (GFRP) as skins and webs while balsa wood as core The failure modes, S-N curves, load-deflection behavior and stiffness degradation were obtained and compared The results showed that the fatigue failure modes of web reinforced sandwich beams varied with the web setting and load grade The web setting changed the failure mechanism and the materials were utilized in varying degrees in different specimens Fatigue life model based on damage modulus was proposed and proved appropriate to predict the fatigue damage and ultimate life.

KW - Damage

KW - Fatigue

KW - GFRP

KW - Life prediction

KW - Sandwich

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VL - 136

JO - International Journal of Fatigue

JF - International Journal of Fatigue

M1 - 105592

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Flexural fatigue behavior and life prediction of web reinforced GFRP-balsa sandwich beams

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Keywords

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