Numerical analysis of the Ti6Al4V behavior based on the definition of a new phenomenological model

Yaich, Mariem; Ayed, Yessine; Germain, Guénaël; Bouaziz, Zoubeir

doi:10.1007/s00170-021-07753-5

Cited by 3 publications

(1 citation statement)

References 32 publications

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“…For PEEK materials, Chen et al 21 , 22 tested the compression performance of the material under strain rates ranging from 0.01 to 1 s −1 and temperatures ranging from 23 to 150 °C, and, combined with the experimental data from literature 9 , established an improved Johnson–Cook model to describe the mechanical behavior of PEEK, especially pointing out that the yield stress is inversely proportional to temperature. Literature 18 and literature 19 established constitutive models for the material, and, based on custom subroutines, reproduced the studied material's stress–strain in finite element calculation software, successfully simulating the material's response under corresponding application scenarios. This quantitative description of the material's mechanical properties helps to simulate the material's response under different working conditions, making it easier to optimize engineering designs for the material's usage conditions.…”

Section: Introductionmentioning

confidence: 99%

Compression properties and constitutive model of short glass fiber reinforced poly-ether-ether-ketone (PEEK)

Zhang,

Chen,

Xie

et al. 2023

Sci Rep

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To analyze the deformation behavior of short glass fiber-reinforced poly-ether-ether-ketone (SGFR-PEEK) under various conditions through numerical simulations, it is crucial to construct a constitutive model that can describe its stress–strain behavior over a wide range of strain rates and temperatures. In this study, quasi-static compression tests were conducted on SGFR-PEEK composites with varying mass fractions, and dynamic tests were performed using a Split Hopkinson Pressure Bar to acquire the material's compressive stress–strain response under quasi-static and dynamic conditions. The results indicate that, under compression, the yield stress of SGFR-PEEK composites increases with an augmentation in glass fiber content, rises with increasing strain rate, and decreases with elevated temperature. Based on experimental findings, a modified Johnson–Cook constitutive model was established to characterize the mechanical performance of SGFR-PEEK. In comparison to the traditional Johnson–Cook intrinsic structure model, the modified model takes into account the glass fiber mass fraction as comprehensively as possible and better predicts the material's flow behavior at high strain rates. Finally, this modified constitutive model was implemented in the ABAQUS software using the user-defined subroutine VUMAT to simulate the compression behavior of SGFR-PEEK composites under different loading conditions, and the model was validated. This research provides valuable insights for the practical application of SGFR-PEEK composites in engineering.

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Section: Introductionmentioning

confidence: 99%

Compression properties and constitutive model of short glass fiber reinforced poly-ether-ether-ketone (PEEK)

Zhang,

Chen,

Xie

et al. 2023

Sci Rep

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Investigation of variable pitch tool design for chatter suppression in milling of Ti-6Al-4 V: a comparison of simulation and experimental results

Zhao

et al. 2022

Int J Adv Manuf Technol

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Simulation-based investigation on ultra-precision machining of additively manufactured Ti-6Al-4V ELI alloy and the associated experimental study

Manjunath,

Tewary,

Khatri

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part B:

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Additive Manufacturing (AM) has shown excellent research potential for biomedical implants, complex aerofoil structures, military applications, high-pressure cryogenic vessels, and automobile components. The mechanical properties exhibited by the additively manufactured Ti6Al4V ELI alloy components are significantly different from traditionally manufactured Ti6Al4V alloy due to the material anisotropy, orientation of the microstructure, and variation in heat treatments. Among AM techniques, SLM (Selective laser melting) offers unparalleled design flexibility with minimum impurities and high reproducibility. However, post-processing of additive manufactured components is essential due to their poor surface finish and lack of dimensional accuracy. Ti6Al4V ELI (Extra Low Interstitials) alloy is a difficult-to-cut material in Ultra-Precision Machining (UPM) due to its excessive tool wear, hardness, and chemical reactivity. Optimizing machining parameters for better surface finish by UPM is time-consuming and often not economical. Modeling and simulation provide a low-cost approach for the investigation of machining. In this work, a series of cutting experiments have been carried out on additively manufactured Ti6Al4V ELI alloy to study the cutting mechanism during UPM. In addition, Finite Element Model (FEM) is employed to understand the chip formation and cutting forces in UPM with a built-in Johnson-Cook (JC) model and a Johnson-Cook-TANH (JC-TANH) vectorized user-defined material subroutine (VUMAT) model. Cutting forces corresponding to the JC model and JC-TANH are examined with the experimental forces in literature, and the results are found to be fairly close.

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Numerical analysis of the Ti6Al4V behavior based on the definition of a new phenomenological model

Cited by 3 publications

References 32 publications

Compression properties and constitutive model of short glass fiber reinforced poly-ether-ether-ketone (PEEK)

Compression properties and constitutive model of short glass fiber reinforced poly-ether-ether-ketone (PEEK)

Investigation of variable pitch tool design for chatter suppression in milling of Ti-6Al-4 V: a comparison of simulation and experimental results

Simulation-based investigation on ultra-precision machining of additively manufactured Ti-6Al-4V ELI alloy and the associated experimental study

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