On the use of milled shell‐only specimens to study the effect of fiber orientation on the fatigue behavior of a short fiber‐reinforced polyamide

Canegrati, Andrea; Martulli, L.M.; Hine, P. J.; Grassini, Carlo; Bernasconi, A.

doi:10.1111/ffe.13890

Cited by 2 publications

(1 citation statement)

References 37 publications

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“…Fatigue properties of SFRT have been studied in many works for the past few decades. The fatigue properties can depend on different parameters such as load ratio, 2,12,13 sample orientation, 14,15 temperature, and humidity. 3,16 This paper deals with PEEK reinforced with 30% in weight of short carbon fibers (PEEK CF30) and focuses on the effects of the load ratio.…”

Section: Introductionmentioning

confidence: 99%

Fatigue of short carbon fiber reinforced PEEK under compression: Influence of the load ratio and predictions from heat buildup measurements

Kwiatkowski

Saux

et al. 2023

Fatigue Fract Eng Mat Struct

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Few works investigate the fatigue of short fiber reinforced thermoplastics under cyclic compression. Furthermore, the heat buildup approach to quickly predict the fatigue lifetime of these materials has not yet been investigated for compression-compression loadings. This paper first describes an experimental protocol to perform well-controlled cyclic compression tests without antibuckling device that may induced bias. The uniaxiality of the global loading is checked during the test based on kinematic and thermoelastic coupling field measurements. Then, the paper compares the results from fatigue and heat buildup tests performed on polyetheretherketone reinforced with 30 wt% of short carbon fibers for several load ratios. It is shown that the fatigue lifetime is higher in compression than in tension and depends on the compression load ratio. The heat buildup approach appears to be relevant to quickly predict the fatigue lifetime of the material for the different loading ratios studied, including compression-compression.compression, fatigue, self-heating, short fiber reinforced thermoplastics Highlights• Protocol to perform well-controlled compression tests based on field measurements.• Influence of load ratios on fatigue lifetime of PEEK CF30 under compression loadings.• Quick prediction of fatigue lifetime from heat buildup measurements in compression.

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Section: Introductionmentioning

confidence: 99%

Fatigue of short carbon fiber reinforced PEEK under compression: Influence of the load ratio and predictions from heat buildup measurements

Kwiatkowski

Saux

et al. 2023

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

show abstract

Fatigue Characteristics and Mechanisms of Additional Damping Structures With Entangled Metallic Wire Material

Tang,

Liang,

Wei

et al. 2024

Fatigue Fract Eng Mat Struct

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Under vibration conditions, continuous alternating loads cause fatigue damage to structures, affecting their stability, durability, and overall safety. In this paper, the additional damping structures with entangled metallic wire material (EMWM) is proposed. Dynamic tests with different loading frequencies and loading amplitudes are carried out to evaluate the energy dissipation and stiffness characteristics of the different structures in terms of energy dissipation, loss factor, and average stiffness. Fatigue tests are conducted, and the fatigue life tests are applied with different loading amplitudes and loading frequencies using displacement control, and the fatigue properties are obtained under different numbers of cyclic loading. The test results are analyzed with respect to the energy dissipation mechanism of EMWM and the characteristics of the additional damping structure. The hysteresis curves under different loading times are identified by parameters, and the fatigue mechanical models are constructed. Comparison between the predicted data of the model and the hysteresis curve data of the test indicates that the model has high accuracy.

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On the use of milled shell‐only specimens to study the effect of fiber orientation on the fatigue behavior of a short fiber‐reinforced polyamide

Cited by 2 publications

References 37 publications

Fatigue of short carbon fiber reinforced PEEK under compression: Influence of the load ratio and predictions from heat buildup measurements

Fatigue of short carbon fiber reinforced PEEK under compression: Influence of the load ratio and predictions from heat buildup measurements

Fatigue Characteristics and Mechanisms of Additional Damping Structures With Entangled Metallic Wire Material

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