Very High Cycle Fatigue (VHCF) of Materials: An Overview

Tridello, Andrea; Niutta, Carlo Boursier; Haghshenas, Meysam; Berto, Filippo; Paolino, Davide Salvatore

doi:10.1016/b978-0-323-90646-3.00007-1

Cited by 2 publications

(1 citation statement)

References 150 publications

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“…As expected by the high frequency of the USF test, the factor

ω

would increase, leading to a corresponding rise in the generation of heat. As a result, material properties could change during the USF test because of heating 83,92,203,207,208 ; this increase in temperature will influence the amorphous structure of the polymer‐matrix chain at the nanoscale.…”

Section: Failure Mechanismsmentioning

confidence: 99%

Very high cycle fatigue of fiber‐reinforced polymer composites: Uniaxial ultrasonic fatigue

Behvar,

Sojoodi,

Elahinia

et al. 2024

Fatigue Fract Eng Mat Struct

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This review explores uniaxial ultrasonic fatigue (USF) testing as a common and dependable method for quantifying the extended fatigue life of fiber‐reinforced polymer (FRP) composites. The objective is to explain the complexities governing the fatigue life behavior of FRPs, particularly in the realm of very high cycle fatigue (VHCF) where the number of loading cycles exceeds 107. To this end, this review encompasses the analysis of VHCF behavior, including the derivation and interpretation of stress–life (S–N) data, the evaluation of various fatigue damage mechanisms (i.e., controlling mechanisms of crack initiation and propagation) exhibited in FRP composites, and a thorough investigation of the frequency‐dependent effects on fatigue responses. Furthermore, this review tries to analyze the microscopic intricacies intrinsic to the VHCF failure of FRP composites, encompassing aspects such as fiber‐matrix de‐bonding, matrix cracking, and delamination, unveiling their modes and effects in a detailed manner. This review also underscores the pivotal integration of simulations, machine learning, and modeling techniques, emphasizing their crucial role in explaining both macroscopic and microscopic interactions governing the VHCF of FRPs.

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“…As expected by the high frequency of the USF test, the factor

ω

Section: Failure Mechanismsmentioning

confidence: 99%

Very high cycle fatigue of fiber‐reinforced polymer composites: Uniaxial ultrasonic fatigue

Behvar,

Sojoodi,

Elahinia

et al. 2024

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

show abstract

Review on the Fatigue Strength of Additively Manufactured Metal Materials Under the Very High Cycle Fatigue

Lopes,

da Costa,

Freitas

et al. 2024

Fatigue Fract Eng Mat Struct

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The primary goal of this systematic literature review is to identify, characterize, and make a comprehensive analysis of the available research on the fatigue strength of additively manufactured (AMed) metal materials when subjected to loading cycles that exceed the preconceptualized fatigue limit ( cycles) and the very high cycle fatigue (VHCF) regime. Considering the inherent complexity and magnitude of influential variables present in AM metal processes, this paper explores in‐depth the relevant conclusions taken by theoretical/experimental studies and their respective results of several AMed materials in the VHCF regime. The present review focuses on key research topics of metal AM fatigue strength, such as crack initiation and failure mechanisms, examining the influence of microstructure and defects, the effect of the input process parameters, postprocessing methods, and the influence of testing conditions on fatigue strength.

show abstract

Very High Cycle Fatigue (VHCF) of Materials: An Overview

Cited by 2 publications

References 150 publications

Very high cycle fatigue of fiber‐reinforced polymer composites: Uniaxial ultrasonic fatigue

Very high cycle fatigue of fiber‐reinforced polymer composites: Uniaxial ultrasonic fatigue

Review on the Fatigue Strength of Additively Manufactured Metal Materials Under the Very High Cycle Fatigue

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