Temporal damage accumulation characteristics of plain weave composites under combined high and low cycle fatigue loading employing DIC and AE techniques
Zhanguang Chen, Tao Zheng, Li Zhang, Zhongyu Wang, Shangyang Yu, Jindi Zhou, Yidong Zhang, Licheng Guo
{"title":"Temporal damage accumulation characteristics of plain weave composites under combined high and low cycle fatigue loading employing DIC and AE techniques","authors":"Zhanguang Chen, Tao Zheng, Li Zhang, Zhongyu Wang, Shangyang Yu, Jindi Zhou, Yidong Zhang, Licheng Guo","doi":"10.1016/j.ijfatigue.2025.109204","DOIUrl":null,"url":null,"abstract":"<div><div>In this paper, a novel experimental investigation on the combined high and low cycle fatigue (CCF) behavior of plain weave composites (PWCs) is conducted, utilizing a specially designed fatigue loading block. Digital image correlation (DIC) and acoustic emission (AE) techniques are employed for comprehensive damage characterization. Superimposed high-cycle fatigue (HCF) loading is found to significantly reduce fatigue life, accelerate the accumulation of total and residual strain and lead to earlier damage of weft yarns. A fatigue damage mode identification method is developed by the k-means++ clustering analysis and macro/micro-scale damage observation, classifying fatigue AE signals into four modes. Notably, fatigue damage accumulation characteristics exhibit strong time dependency on the loading history. Under CCF loading, early damage primarily occurs during the HCF stage, while continued cycling causes substantial accumulation in both the load-rise and HCF stages. The superimposed HCF loading contributes to an increased number of cumulative AE hits across all loading stages. The presence of HCF loading maintains a consistently high damage accumulation rate for matrix cracking and fiber/matrix debonding throughout the fatigue process, which is the primary factor contributing to fatigue life reduction.</div></div>","PeriodicalId":14112,"journal":{"name":"International Journal of Fatigue","volume":"201 ","pages":"Article 109204"},"PeriodicalIF":6.8000,"publicationDate":"2025-07-28","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/S0142112325004013","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}
引用次数: 0
Abstract
In this paper, a novel experimental investigation on the combined high and low cycle fatigue (CCF) behavior of plain weave composites (PWCs) is conducted, utilizing a specially designed fatigue loading block. Digital image correlation (DIC) and acoustic emission (AE) techniques are employed for comprehensive damage characterization. Superimposed high-cycle fatigue (HCF) loading is found to significantly reduce fatigue life, accelerate the accumulation of total and residual strain and lead to earlier damage of weft yarns. A fatigue damage mode identification method is developed by the k-means++ clustering analysis and macro/micro-scale damage observation, classifying fatigue AE signals into four modes. Notably, fatigue damage accumulation characteristics exhibit strong time dependency on the loading history. Under CCF loading, early damage primarily occurs during the HCF stage, while continued cycling causes substantial accumulation in both the load-rise and HCF stages. The superimposed HCF loading contributes to an increased number of cumulative AE hits across all loading stages. The presence of HCF loading maintains a consistently high damage accumulation rate for matrix cracking and fiber/matrix debonding throughout the fatigue process, which is the primary factor contributing to fatigue life reduction.
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.