Cong Zhang , Yongzhi Li , Guanchen Zhao , Erming He
{"title":"随机振动疲劳下碳纤维/环氧复合材料自热行为与损伤机理的关系","authors":"Cong Zhang , Yongzhi Li , Guanchen Zhao , Erming He","doi":"10.1016/j.ijfatigue.2025.109203","DOIUrl":null,"url":null,"abstract":"<div><div>Non-destructive thermal imaging-based internal damage identification and fatigue life assessment in composites necessitates investigating the relationship between the self-heating behavior and damage mechanisms. This study develops a novel self-heating numerical algorithm that categorizes temperature rise contributions into three components: (I) the viscoelastic deformation of composites, (II) interface debonding slip friction, and (III) delamination friction. The viscoelastic response of the composite was characterized by modifying the viscoelastic standard linear solid model, coupled with a damage model to investigate the temperature evolution of laminates during random vibration fatigue, and a series of verification experiments were carried out. Furthermore, the dynamic characteristics degradation patterns and damage-damping effect of composite laminates were explored in depth. The results demonstrated that temperature evolution significantly depends on the damage propagation; the viscoelastic deformation serves as the primary heat source driving the self-heating behavior of the composite, resulting in uniform thermal distribution within the region of interest. The internal damage modifies the relative contributions to temperature rise, thereby changing the surface thermal distribution of the composite. Dominant damage modes exhibit stage-dependent characteristics that differentially govern temperature evolution throughout the loading history. The developed self-heating model provides novel possibilities for accurate identification of internal damage and high-cycle fatigue life prediction in composite structures.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"201 ","pages":"Article 109203"},"PeriodicalIF":6.8000,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The relationship between the self-heating behavior and damage mechanism of carbon fiber/epoxy composites subjected to random vibration fatigue\",\"authors\":\"Cong Zhang , Yongzhi Li , Guanchen Zhao , Erming He\",\"doi\":\"10.1016/j.ijfatigue.2025.109203\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Non-destructive thermal imaging-based internal damage identification and fatigue life assessment in composites necessitates investigating the relationship between the self-heating behavior and damage mechanisms. This study develops a novel self-heating numerical algorithm that categorizes temperature rise contributions into three components: (I) the viscoelastic deformation of composites, (II) interface debonding slip friction, and (III) delamination friction. The viscoelastic response of the composite was characterized by modifying the viscoelastic standard linear solid model, coupled with a damage model to investigate the temperature evolution of laminates during random vibration fatigue, and a series of verification experiments were carried out. Furthermore, the dynamic characteristics degradation patterns and damage-damping effect of composite laminates were explored in depth. The results demonstrated that temperature evolution significantly depends on the damage propagation; the viscoelastic deformation serves as the primary heat source driving the self-heating behavior of the composite, resulting in uniform thermal distribution within the region of interest. The internal damage modifies the relative contributions to temperature rise, thereby changing the surface thermal distribution of the composite. Dominant damage modes exhibit stage-dependent characteristics that differentially govern temperature evolution throughout the loading history. The developed self-heating model provides novel possibilities for accurate identification of internal damage and high-cycle fatigue life prediction in composite structures.</div></div>\",\"PeriodicalId\":14112,\"journal\":{\"name\":\"International Journal of Fatigue\",\"volume\":\"201 \",\"pages\":\"Article 109203\"},\"PeriodicalIF\":6.8000,\"publicationDate\":\"2025-07-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Fatigue\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0142112325004001\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, MECHANICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Fatigue","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0142112325004001","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MECHANICAL","Score":null,"Total":0}
The relationship between the self-heating behavior and damage mechanism of carbon fiber/epoxy composites subjected to random vibration fatigue
Non-destructive thermal imaging-based internal damage identification and fatigue life assessment in composites necessitates investigating the relationship between the self-heating behavior and damage mechanisms. This study develops a novel self-heating numerical algorithm that categorizes temperature rise contributions into three components: (I) the viscoelastic deformation of composites, (II) interface debonding slip friction, and (III) delamination friction. The viscoelastic response of the composite was characterized by modifying the viscoelastic standard linear solid model, coupled with a damage model to investigate the temperature evolution of laminates during random vibration fatigue, and a series of verification experiments were carried out. Furthermore, the dynamic characteristics degradation patterns and damage-damping effect of composite laminates were explored in depth. The results demonstrated that temperature evolution significantly depends on the damage propagation; the viscoelastic deformation serves as the primary heat source driving the self-heating behavior of the composite, resulting in uniform thermal distribution within the region of interest. The internal damage modifies the relative contributions to temperature rise, thereby changing the surface thermal distribution of the composite. Dominant damage modes exhibit stage-dependent characteristics that differentially govern temperature evolution throughout the loading history. The developed self-heating model provides novel possibilities for accurate identification of internal damage and high-cycle fatigue life prediction in composite structures.
期刊介绍:
Typical subjects discussed in International Journal of Fatigue address:
Novel fatigue testing and characterization methods (new kinds of fatigue tests, critical evaluation of existing methods, in situ measurement of fatigue degradation, non-contact field measurements)
Multiaxial fatigue and complex loading effects of materials and structures, exploring state-of-the-art concepts in degradation under cyclic loading
Fatigue in the very high cycle regime, including failure mode transitions from surface to subsurface, effects of surface treatment, processing, and loading conditions
Modeling (including degradation processes and related driving forces, multiscale/multi-resolution methods, computational hierarchical and concurrent methods for coupled component and material responses, novel methods for notch root analysis, fracture mechanics, damage mechanics, crack growth kinetics, life prediction and durability, and prediction of stochastic fatigue behavior reflecting microstructure and service conditions)
Models for early stages of fatigue crack formation and growth that explicitly consider microstructure and relevant materials science aspects
Understanding the influence or manufacturing and processing route on fatigue degradation, and embedding this understanding in more predictive schemes for mitigation and design against fatigue
Prognosis and damage state awareness (including sensors, monitoring, methodology, interactive control, accelerated methods, data interpretation)
Applications of technologies associated with fatigue and their implications for structural integrity and reliability. This includes issues related to design, operation and maintenance, i.e., life cycle engineering
Smart materials and structures that can sense and mitigate fatigue degradation
Fatigue of devices and structures at small scales, including effects of process route and surfaces/interfaces.