High strain-rate compression tests on ice

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WebJun 17, 2024 · Additionally, in some high strain rate studies on fiber-reinforced normal and high-strength concrete samples that had compressive strength values of 35–110 MPa, strain rates in the range of 10 to -700 s −1 were measured by using SHPB test setups [12,13,14,15,16,17]. In these experimental studies, the specimens having radii varying in … WebDec 1, 2006 · Schulson (2001) (see Fig. 2) shows a dramatic increase for polycrystal ice in the compressive failure stress from 0.5 MPa at a strain rate of 10 −8 s −1 to 10 MPa at a strain rate of 10 −3 s −1 then a decline to 6 MPa at 10 −1 s −1 (with considerable scatter in the data). Download : Download full-size image Fig. 1.

Impact Compression Test of Ice by Combining SHPB …

Webture interactions, such as, ice drilling/crushing and high-speed ice impacts, the strain rates in ice are much larger than those con-sidered in the limited experimental studies on ice thus … WebFeb 1, 2015 · A modified split Hopkinson bar is developed for sub-zero temperature testing. •. Dynamic strength of lake water ice and distilled water ice is measured. •. States of stress include uniaxial compression and combined compression and shear. •. Peak strength of ice is rate sensitive over the strain rate range 100–600/s. •. sighting in a winchester model 94 30 30

(PDF) High strain rate compression testing of ice

WebVeryst can test the tensile and compressive behavior of a wide variety of polymeric materials over strain rates ranging from 10-3 – 10 4 /s combining traditional test … WebMar 7, 2024 · In this study, the dynamic impact laboratory tests were conducted for frozen sandy soil with various water contents (from 15% to 110%) and strain rates (from 450 s -1 to 728 s -1) based on the split Hopkinson pressure bar (SHPB) system. WebJan 25, 2011 · Abstract A range of mechanical compression tests were conducted on frozen soil samples at temperatures close to the melting point of ice to determine both the creep and the strength properties under triaxial stress conditions. The samples were obtained from two rock glaciers in the Swiss Alps. sighting in burris oracle x

Strain Rate‐Dependent Hardening‐Softening Characteristics of Gas …

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WebHigh strain rate out-of-plane compression of birch plywood from ambient to cryogenic temperatures. L. Caetano, L. Caetano. Université de Bretagne Sud, Lorient F-56100, … WebNov 4, 2024 · The SHPB test was used to characterize the injection- and compression-molded parts' high-strain rate mechanical properties. The experimental setup consists of three aluminum bars, namely the striker, ... The tests were carried with compression rates of 2.54, 127, and 254 mm/s, which correspond to strain rates of 0.01, 0.7, ... the price is right 2002 2003 playlist youtube the price is right 2004 2005

"WebApr 1, 2007 · The compressive strength of ice was measured at high strain rates of 103 s−1 order of magnitude. Since ice compressive strength is known to be strongly dependent on strain rate, properties corresponding to high strain rates are needed for engineering predictions of the behavior of ice under dynamic crushing scenarios. The split Hopkinson … " - High strain-rate compression tests on ice

High strain-rate compression tests on ice

High Strain Rate Compression Testing of Ice - ResearchGate

Web2.2. High Strain Rate Testing with the Split Hopkinson Pressure Bar. The Split Hopkinson Pressure Bar setup (Freiburg, Germany) used in the tests is schematically illustrated by … WebUniaxial compression tests on cylindrical polycrystalline ice specimens were made to determine the characteristics of the platens. For 21 specimens with ends prepared on a lapping plate to obtain a mirror finish, the measured strength showed a variation of only 13% for length-to-diameter ratios from 0.74 to 2.5, with no systematic trend.

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WebFrom National Research Council Canada. High-speed uniaxial compression tests were conducted in the strain-rate range 10-1-101 s-1, at -11 C, on freshwater ice and "Baltic" … WebJan 1, 2005 · The SHPB was adopted to perform elevated strain-rate tests at temperatures as low as -30 o C. Experimental results showed that the strength of ice increases with …

WebThe SHPB was adopted to perform elevated strain-rate tests at temperatures as low as -30oC. Experimental results showed that the strength of ice increases with increasing the strain rate. WebJul 30, 2013 · High-Strain-Rate Compression Testing of Ice [Shazly, Mostafa, Nasa Technical Reports Server (Ntrs), Et Al] on Amazon.com. *FREE* shipping on qualifying offers. High-Strain-Rate Compression …

WebProcedures have been refined for performing constant-strain-rate triaxial tests on ice samples. The equipment is designed such that the confining pressure/axial stress ratio remains constant. Sample axial displacements are measured inside the cell on the sample and outside the cell between the cell and the loading piston. WebConclusions The fracture behavior and stress of ice at high strain rates can be determined by combining the SHPB method with high-speed camera observation. Keywords Ice · split …

WebNano size pillars (<500 nm) show near universal scaling exponent of 1.50 ± 0.07 at all applied strain rates. The strain hardening rate and deformation …

WebApr 12, 2024 · Materials for aerostructures require vigorous testing to ensure they can withstand the range of conditions an aircraft is exposed to. With areas such as static bending and free vibration response of materials for this application, including composite panels, having been widely investigated [1,2,3,4,5].A specific area of interest is the impact … sighting in a truglo red dotWebThe SHPB was adapted to perform tests at high strain rates in the range 60 to 1400/s at test temperatures of -10 and -30 C. Experimental results showed that the strength of ice … the price is right 2001 safe crackersWebJan 20, 2024 · This type of tester has been used by Timco (1980) to document the compressive strength under a high loading rate of both carbamide-and saline-doped model ice over a limited range of scale factors, and by Nakajima and others (1981) in … the price is right 2003WebTo study the variation of rock burst proneness according to different strain rates, four strain rates (0.005, 0.01, 0.5, and 1.0 s −1) were considered based on the typical range of strain rate ε e associated with rock burst (Wasantha et al., 2015).The specific test plan is listed in Table 1.Moreover, to avoid the heterogeneity of the rock material (especially the layered … the price is right 2001 archiveWebFeb 12, 2011 · Ice strength will increase as strain rate rises up, until brittle failure occurs. Some investigations (Cole, 2001;Dutta, 1993; Jones, 2003) consider ice strength will … sighting in burris oracle x scopeWebJul 8, 2024 · The fracture behavior and stress of ice at high strain rates can be determined by combining the SHPB method with high-speed camera observation. The split Hopkinson pressure bar (SHPB) method proposed by Kolsky [ 1, 2] is the most famous impact test to measure the deformation of materials under high strain rates. sighting in a thermal scope in daytimeWebthe axial strain at the peak stress when testing at low strain rates. Confined Compression Tests Low Confining Pressures (03 = 0 to 0.35 MPa) A specially designed double-walled triaxial cell was constructed to carry out tests under low confining pressures. A volume measurement device developed by Mitchell and Burn (1971) was modified to measure sighting in a trophy ridge 5 pin bow sight