Evaluation of combined hardening coefficients of zircaloy-4 sheets by simple shear test

Rickhey, Felix; Kim, Min‐Soo; Lee, Hyungyil; Kim, Naksoo

doi:10.1016/j.matdes.2014.10.027

Cited by 10 publications

(2 citation statements)

References 24 publications

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“…However, the biaxial effect caused by the clamping force of the fixture and the friction between the fixture and the sample affect the accuracy of the test results. In addition, since the uniaxial tensile specimens produce necking, the in-plane tension–compression experiments cannot obtain the mechanical properties of the specimen after necking [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Experiment for Measuring Mechanical Properties of High-Strength Steel Sheets under Cyclic Loading by V-Shaped Double-Shear-Zone Specimens

et al. 2023

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The simple shear test shows significant advantages when measuring the hardening and shear properties of thin sheet metal at large strains. However, previous shear tests had an end effect caused by local stress concentration and a boundary effect caused by deformation overflow, resulting in non-uniform strain distribution in the shear zone. Therefore, a unique V-shaped double-shear-zone specimen is proposed to measure the Bauschinger effect under cyclic shear loading conditions in this paper. Simple shear experiments and three different types of cycle shear experiments are conducted to analyze the uniformity of deformation in the shear zone and the effect of pre-strain and the number of cyclic loads on the Bauschinger effect of Q890 high-strength steel sheets. The results indicate that the proposed V-shaped double-shear-zone specimen can still maintain uniform shear deformation in forward/reverse cyclic loading experiments, even at large strains. Q890 high-strength steel exhibits a significant Bauschinger effect, which is more pronounced with the increase in shear pre-strain and loading cycles. The results of this paper provide a new approach for studying the hardening characteristics under large strain and the mechanical properties under cyclic shear loading for metal sheets.

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Section: Introductionmentioning

confidence: 99%

Experiment for Measuring Mechanical Properties of High-Strength Steel Sheets under Cyclic Loading by V-Shaped Double-Shear-Zone Specimens

et al. 2023

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“…Mechanical buckling is a very common physical phenomenon in laminated structures [1][2][3] that is often considered to be detrimental because it can initiate delamination between the layers. 4,5 Yet, because buckling is simple, fast, and easy to trigger, without the use of complex or expensive instruments, it is also considered to be beneficial because it is an excellent approach to fabricate uniform patterns in thin coatings 6,7 with application in flexible electronics, 8 optical designs, 9 microfluidics, 10 metrology, 11 and biological assays. 12 Investigation into the buckling mechanism of coatings 13,14 has revealed that buckling is generated through residual stress at the interface between adjacent layers.…”

Section: Introductionmentioning

confidence: 99%

Leveraging a temperature-tunable, scale-like microstructure to produce multimodal, supersensitive sensors

et al. 2017

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The microstructure of a flexible film plays an important role in its sensing capability. Here, we fabricate a temperature-dependent wrinkled single-walled carbon nanotube (SWCNT)/polydimethyl-siloxane (PDMS) film (WSPF) and a wrinkle-dependent scale-like SWCNT/PDMS film (SSPF) successfully, and address the formation and evolution mechanisms of each film. The low elastic modulus and high coefficient of thermal expansion of the PDMS layer combined with the excellent piezoresistive behavior of the SWCNT film motivated us to investigate how the scale-like microstructure of the SSPF could be used to design multimodal-sensing devices with outstanding capabilities. The results show that SSPFs present supersensitive performance in mechanical loading (an effective sensitivity of up to 740.7 kPa) and in temperature (a tunable thermal index of up to 29.9 × 10 K). These exceptional properties were demonstrated in practical applications in a programmable flexile pressure sensor, thermal/light monitor or switch, etc., and were further explained through the macroscopic and microscopic piezoresistive behaviors of scale-like SWCNT coatings.

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Numerical investigations on the effect of pit on two-step dimple forming of atomic fuel spacer grid

Marimuthu

Choi

Kim

et al. 2017

Int J Adv Manuf Technol

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Evaluation of combined hardening coefficients of zircaloy-4 sheets by simple shear test

Cited by 10 publications

References 24 publications

Experiment for Measuring Mechanical Properties of High-Strength Steel Sheets under Cyclic Loading by V-Shaped Double-Shear-Zone Specimens

Experiment for Measuring Mechanical Properties of High-Strength Steel Sheets under Cyclic Loading by V-Shaped Double-Shear-Zone Specimens

Leveraging a temperature-tunable, scale-like microstructure to produce multimodal, supersensitive sensors

Numerical investigations on the effect of pit on two-step dimple forming of atomic fuel spacer grid

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