scholarly journals Biomechanics Determination of dynamic material properties for poly(L-lactic acid)/ poly(∊-caprolactone) blends: Experiments and simulation using split Hopkinson pressure bars

2012 ◽  
Vol 26 ◽  
pp. 03001
Author(s):  
M. Nishida ◽  
Y. Ito ◽  
G. Gustafsson ◽  
H.-Å. Häggblad ◽  
P. Jonsén ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Material Properties ◽  
Split Hopkinson ◽  
Split Hopkinson Pressure Bars ◽  
Dynamic Material Properties ◽  
Poly Caprolactone

scholarly journals Adapted measuring sequence for the determination of directional-dependent dynamic material properties using a bending resonance method

2019 ◽  
Vol 79 ◽  
pp. 106044 ◽  
Author(s):  
Martin Dannemann ◽  
Klaudiusz Holeczek ◽  
Jana Leimert ◽  
Stefan Friebe ◽  
Niels Modler
Keyword(s):  
Material Properties ◽  
Resonance Method ◽  
Dynamic Material Properties ◽  
Measuring Sequence

scholarly journals High Strain Rate Characterization of Shock Absorbing Materials for Landmine Protection Concepts

2003 ◽  
Vol 10 (3) ◽  
pp. 179-186 ◽  
Author(s):  
Jennifer McArthur ◽  
Christopher Salisbury ◽  
Duane Cronin ◽  
Michael Worswick ◽  
Kevin Williams
Keyword(s):  
Strain Rate ◽  
High Strain ◽  
Dynamic Testing ◽  
Stress Wave Propagation ◽  
Published Data ◽  
Split Hopkinson ◽  
Split Hopkinson Pressure Bars ◽  
Dynamic Material Properties ◽  
Foamed Metals

Numerical modelling of footwear to protect against anti-personnel landmines requires dynamic material properties in the appropriate strain rate regime to accurately simulate material response. Several materials (foamed metals, honeycombs and polymers) are used in existing protective boots, however published data at high strain rates is limited.Dynamic testing of several materials was performed using Split Hopkinson Pressure Bars (SHPB) of various sizes and materials. The data obtained from these tests has been incorporated into material models to predict the initial stress wave propagation through the materials. Recommendations for the numerical modeling of these materials have also been included.

A Numerical Investigation into the Tensile Split Hopkinson Pressure Bars Test for Sheet Metals

2013 ◽  
Vol 421 ◽  
pp. 464-467 ◽  
Author(s):  
Thanh Nam Pham ◽  
Hyo Seong Choi ◽  
Jong Bong Kim
Keyword(s):  
Flow Stress ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Finite Element Analyses ◽  
Compressive Flow ◽  
Design Guide ◽  
Split Hopkinson ◽  
Split Hopkinson Pressure Bars

Determination of theflow stress of materials at high strain rate is very important in automotive and military areas.The compressive flow stress at high strain rate can be obtained relativelyexactly by SHPB(Split Hopkinson Pressure Bars) tests. However, it is difficult to determinethe flow stressexactlyin the tensile state by using the SHPB tests. The difficulty in the tensile SHPB tests is how to fix a specimen on two bars. So, the design of a specimen and holders is needed to obtain more accurate measurement of the flow stress. In this study, the accuracy of the tensile SHPB tests results was numerically investigated. Finite element analyses of the tensile SHPB were carried out for various cases of fixing bolt location and bolting force. From the analysis results, a design guide for the fixing structure was obtained and the causes of error were investigated.

scholarly journals Вариационный подход к определению динамической прочности материала

2022 ◽  
Vol 92 (2) ◽  
pp. 274
Author(s):  
А.Д. Евстифеев ◽  
Г.А. Волков
Keyword(s):  
Test Performance ◽  
Tensile Tests ◽  
Strength Properties ◽  
Material Strength ◽  
Treatment Procedure ◽  
Performance Error ◽  
Split Hopkinson ◽  
Split Hopkinson Pressure Bars ◽  
Static Conditions

The problem of the determination of material strength properties through the Kolsky experimental technique is considered. Small size specimens of M1 copper alloy are tested on a split Hopkinson pressure bars equipment. The experimental data of tensile tests observed under both dynamic and quasi-static conditions are analysed within the framework of the incubation time criterion and the Sign-Perturbed Sums method. It is shown that the influence of a test performance error is considered in the data treatment procedure based on the developed method.

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