High strain-rate compression tests on ice

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August undefined, 2024

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. WebJul 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.

Impact Testing on the Pristine and Repaired Composite Materials …

WebThe 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 … dartmouth computer science phd

Frontiers Experimental investigation into rock burst proneness of ...

WebMar 15, 2009 · Schulson (2001) has shown a dramatic increase in the compressive failure stress of polycrystalline ice – from 0.5 MPa at a strain rate of 10 −8 s −1 to 10 MPa at a … 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 … 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, ... bistro b party tray menu

(PDF) High strain rate compression testing of ice

Measuring the Uniaxial Compressive Strength of Ice

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 … WebNov 8, 2024 · 2.4 Triaxial Compression Testing. Strain-controlled drained triaxial compression tests were performed after individual hold periods (supporting information Table S1). The tests were carried out at axial strain rates 0.006, 0.06 and 0.6%/min, and at constant minor principal stresses of 0.25, 0.5, and 1.0 MPa. bistro brandy creekWebProcedures 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. bistro brand cookware

"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 … " - High strain-rate compression tests on ice

High strain-rate compression tests on ice

Impact Compression Test of Ice by Combining SHPB …

WebFeb 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 … 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 …

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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 … WebJul 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 …

Webthe 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 WebSep 1, 2004 · High strain rate compression tests were conducted with columnar ice grown in the laboratory. In addition to measuring stress and strain to failure at 2 strain rates, we …

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. •. 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" …

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 …

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 … dartmouth college weathervaneWebTo 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 … dartmouth consulting american forkWebJan 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. dartmouth computer science orcWebConclusions 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 … dartmouth comp sciWebJan 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 … bistro breakfast ideasWebThe 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. dartmouth college wikiWebHigh 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, … dartmouth course finder