High strain-rate compression tests on ice
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 … WebTo 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 …
High strain-rate compression tests on ice
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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. 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.
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 … WebApr 2, 2007 · The compressive strength of ice was measured at high strain rates of 103s−1 order of magnitude. Since ice compressive strength is known to be strongly dependent on strain rate,...
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 … 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.
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 … diamond\u0027s mrWebUniaxial 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. diamond\u0027s msWebProcedures 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. diamond\\u0027s mvWebNov 25, 2024 · Inconel 718 is a well-known nickel-based superalloy used for high-temperature applications. The aim of the present study was to formulate a constitutive … ciss casesWebFrom 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" … cis scaffold hireWebJan 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. cissbury wedding venueWebJul 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. cissbury weddings