Friction assessment in uniaxial compression test: A new evaluation method based on local bulge profile

Fan, Xiaoguang; Dong, Yongpeng; Yang, He; Gao, Pengfei; Zhan, Mei

doi:10.1016/j.jmatprotec.2016.12.023

Cited by 46 publications

(11 citation statements)

References 14 publications

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“…Sixth, friction plays a role in uniaxial compression test experiments 16,17 . Related work found no significant differences for the chosen silicone 18 .…”

Section: Discussionmentioning

confidence: 99%

Uniaxial compression testing and Cauchy stress modeling to design anatomical silicone replicas

Hattab

Ahlfeld²,

Klimová

et al. 2020

Sci Rep

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Anatomically realistic organ replicas or phantoms allow for accurate studies and reproducible research. To recreate a human kidney, mimicry of the elastic properties of the human kidney is crucial. However, none of the related work addressed the design and development of a kidney phantom using only silicone as material. In contrast to paraffin and hydrogel, silicone is an ideal variant for its extended shelf life, soft-tissue-like feeling, and viscoelastic modularity. To this end, we conducted Uniaxial Compression testing and Cauchy stress modeling. Results indicate that none of the available manufacturer silicone brands are suitable for the task of creating a realistic kidney phantom. Indeed, the tested silicone mixtures in low and high strain fall outside the required approximate target compressive moduli of 20 kPa and 500 kPa, respectively. This work provides a frame of reference for future work by avoiding the pitfalls of the selected ready-made silicones and reusing the reported theoretical and experimental setup to design a realistic replica of the kidney organ.

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“…Sixth, friction plays a role in uniaxial compression test experiments 16,17 . Related work found no significant differences for the chosen silicone 18 .…”

Section: Discussionmentioning

confidence: 99%

Uniaxial compression testing and Cauchy stress modeling to design anatomical silicone replicas

Hattab

Ahlfeld²,

Klimová

et al. 2020

Sci Rep

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“…Since this time, FEM has been widely used to elaborate friction calibration curves for ring compression tests [24]. It has also been used to elaborate curves for double cup extrusion [9], T-shape compression [10], and barrel compression tests [25,26].…”

Section: Introductionmentioning

confidence: 99%

Variation of the friction conditions in cold ring compression tests of medium carbon steel

Zhang

Liu

et al. 2019

Friction

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Lubrication and friction conditions vary with deformation during metal forming processes. Significant macro-variations can be observed when a threshold of deformation is reached. This study shows that during the cold compression processing of #45 (AISI 1045) steel rings, the magnitude of friction and surface roughness (R a ) changes significantly upon reaching a 45% reduction in ring height. For example, the R a of compressed ring specimens increased by approximately 55% immediately before and after reaching this threshold, compared to an 18% or 25%variation over a 35%−45% or a 45%−55% reduction in height, respectively. The ring compression test conducted by this study indicates that the Coulomb friction coefficient μ and Tresca friction factor m are 0.105 and 0.22, respectively, when the reduction in height is less than 45%; and 0.11 and 0.24, respectively, when the reduction in height is greater than 45%.

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“…The method relies on simulation of the test and the Avitzur barrelling model 73 and calculation of its barrelling parameter based on the method of Ebrahimi and Najafizadeh 85 ; however, the latter has been shown to have serious limitations. 86,88 Another approach is to indirectly characterize/measure friction using the barrelled sample geometry, for example, Alexandrov et al, 89 Yao et al, 90 Fan et al, 91 and Solhjoo and Khoddam. 88 Methods to account for friction, excluding the barrelling, with either a fixed Coulomb friction coefficient and mixed sticking-sliding friction, as well as a recently developed method by Khoddam et al 36 are reviewed and discussed in section 6.…”

Section: Known Issues With the Compression Testmentioning

confidence: 99%

State of the art methods to post-process mechanical test data to characterize the hot deformation behavior of metals

Khoddam

Solhjoo

Hodgson

2021

Advances in Mechanical Engineering

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Materials engineering and science rely heavily on the indirect measurement of plastic stress and strain by post-processing of mechanical test data, including tension, torsion, and compression test. There is no consensus among researchers regarding the best test or the post-processing theory nor do adequate standards exist on the characterization methods. The tests are typically performed as customized tests, discrepancies exist in the flow curves obtained by different methods and the chosen mechanical test. More critically, the curves are dominantly treated (perceived) as a set of measured data rather than calculated values. The plasticity-based calculated flow curves and their gradients are, in turn, the basis for several second-tier indirect measurements, such as stacking fault energy and recrystallization. Such measurements are quite prone to errors due to oversimplified post-processing of the tests’ data and can only be experimentally verified in a qualitative or in an average fashion. Therefore, their findings are highly restricted by the limitations of each test, data type and post-processing method, and should be used carefully. This review examines some of the most commonly used data conversion methods and some recent developments in the field followed by recommendations. It will highlight the need to develop test rigs that can provide new data types and to provide advanced post-processing techniques for the indirect measurement.

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Friction assessment in uniaxial compression test: A new evaluation method based on local bulge profile

Cited by 46 publications

References 14 publications

Uniaxial compression testing and Cauchy stress modeling to design anatomical silicone replicas

Uniaxial compression testing and Cauchy stress modeling to design anatomical silicone replicas

Variation of the friction conditions in cold ring compression tests of medium carbon steel

State of the art methods to post-process mechanical test data to characterize the hot deformation behavior of metals

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