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91 results for “creep”
Experimental measurements of creep deformation of Tournemire shale loaded at specified pressure (10 MPa) and room temperature (26°C)
<p>Following the experimental protocol used in (Geng<em> et al.</em>, 2018), we performed the stepping creep experiments at a confining pressure of 10 MPa. We first loaded the samples under hydrostatic conditions up to 10 MPa at a pressure rate of 0.3 MPa/min. Hydrostatic conditions were maintained for ~18 h at 26 °C. Next, differential stress (axial stress minus confining pressure) was increased to a fixed initial stress (30 MPa) and maintained (creep status) for 24 h. The differential stress was repeatedly increased by 5 MPa and maintained for 24 h, until brittle failure. All the experiments were conducted using the triaxial apparatus installed at the Laboratoire de Géologie of ENS-Paris (France). There were few constraints on the natural saturation state of the samples because of their low permeability (10<sup>-19</sup> 10<sup>-21</sup> m<sup>2</sup>). To avoid exposition redundancy, an additional description of the technical performance of the triaxial apparatus can be referred to (Brantut<em> et al.</em>, 2011, Sarout & Guéguen, 2008).</p> <p>Compressive stresses and compactive strains are denoted as positive. Axial creep deformation was measured using three capacitive gap sensors that externally monitored the overall axial displacement of the piston during creep deformation. Volumetric strain during creep was estimated by adding the average of axial strains (axial displacement of the piston divided by the sample length) and two average radial strains measured by four radial strain gauges glued uniformly around the cylindrical rock surface. As the deformation rate generally stabilized during the last 8 h in most creep periods (Geng<em> et al.</em>, 2018), we estimated the average axial strain rate over the last 8 h of each step to characterize the creep strain rate under the corresponding axial loading stress. More technical details of the sample configuration and creep rates estimation can be found in (Geng<em> et al.</em>, 2018).</p>
MAR-M-247 creep assessment through a modified theta projection model - Figures 2 and 5
<p>These two programs provide a way to rebuild the MAR-M-247 creep data presented in the paper:</p> <p>G. Maggiani, M.J. Roy, S. Colantoni, P.J. Withers, MAR-M-247 creep assessment through a modified theta projection model, Materialia, Volume 7, 2019, 100392, ISSN 2589-1529, https://doi.org/10.1016/j.mtla.2019.100392. http://www.sciencedirect.com/science/article/pii/S2589152919301887)<br> </p> <p>In Paper_Figure_2.m two coefficients of the paper itself are corrected and a comparison with what written in the paper and the corrected value is provided. One typo error for theta 1 at 982°C and 140 MPa where 6.9 must be 1.9. The other is for 1038°C 50 MPa theta4. In the paper it is written e^-11 while it actually should have been e^-10.</p> <p>Paper_Figure_5.m more decimal values are provided for the coefficients a, b, c and d that are used to rebuild the theta values.</p> <p> </p> <p> </p>
The (in)sensitivity of granular creep to materials and boundaries
<p>Experimental data reported in the publication "The (in)sensitivity of granular creep to materials and boundaries".</p> <p>jupyter notebook codes are included for data analysis and generating figures in the paper.</p> <p>datasets for Kaolinite material and for smooth and rough boundaries</p>
Data for "Volcano-tectonic interactions at Sabancaya volcano, Peru: Eruptions, magmatic inflation, moderate earthquakes, and fault creep"
<p>Data and models presented in the paper "Volcano-tectonic interactions at Sabancaya volcano, Peru: Eruptions, magmatic inflation, moderate earthquakes, and fault creep". See file "README.txt" for detailed descriptions of each item.</p>
In-situ study of creep in Sn-3Ag-0.5Cu solder
<p>The data released here is for the paper "In-situ study of creep in Sn-3Ag-0.5Cu solder". DOI: <a href="https://doi.org/10.1016/j.actamat.2020.06.013">10.1016/j.actamat.2020.06.013</a></p> <p>Tianhong Gu<sup>1</sup>*, Vivian S. Tong<sup>1,2</sup>, Christopher M. Gourlay<sup>1</sup>, and T. Ben Britton<sup>1</sup></p> <ol> <li>Department of Materials, Imperial College London, SW7 2AZ. UK</li> <li>Now at: National Physical Laboratory, Hampton Rd, Teddington TW11 0LW, UK</li> </ol> <p>*Corresponding author: <a href="mailto:t.gu15@imperial.ac.uk">t.gu15@imperial.ac.uk</a>, +44 20 7594 2634</p> <p>*.bcf = Bruker BCF data for full EBSD map to plot EBSD maps<br> *.csv = spreadsheet of graphical data for plots in Fig2 (creep curves), Fig10 and Fig11 (Schmid factors and slip systems)<br> *.tif = images used to to build up Figures (the figures are presented in the powerpoint)</p> <p>The data bundle was prepared by Tianhong Gu</p>
Data set for Microscale and nanoscale strain mapping techniques applied to creep of rocks
<p>Data set (figures and data involved in their making) for Quintanilla-Terminel, A., M. E. Zimmerman, B. Evans, and D.L. Kohlstedt, Microscale and nanoscale strain mapping techniques applied to creep of rocks, Solid Earth Discuss., https://doi.org/10.5194/se-2017-27, in review, 2017.</p>
Dataset of comprehensive Full-notch creep tests (FNCT) of selected high-density polyethylene (PE-HD) materials
<p>The dataset provided in this repository comprises data obtained from a series of full-notch creep tests (FNCT) performed on selected high-density polyethylene (PE-HD) materials (for further details, see section 1 Materials in this document) in accordance with the corresponding standard ISO 16770 [1]. </p><p>The FNCT is one of the mechanical testing procedures used to characterize polymer materials with respect to their environmental stress cracking (ESC) behavior. It is widely applied for PE-HD materials, that are predominantly used for pipe and container applications. It is based on the determination of the time to failure for a test specimen under constant mechanical load in a well-defined and temperature controlled liquid environment. The test device used here also allows for continuous monitoring of applied force, specimen elongation and temperature.</p>
Creep and stress relaxation data for a martensitic steel at 500°C
<p>The files here uploaded describe the results of creep and stress relaxation tests performed on a martensitic steel at 500 °C. Data are provided both as .txt files and as excel files.</p> <p>Tests were performed on cylindrical sample, with a gauge length of 28 mm and diameter 5.6 mm</p> <p>Four creep tests were performed under 210, 230, 250 and 270 MPa stresses and stopped after 1% creep strain. Then they were unloaded and the anelastic contraction was recorded. Data are given in the form of creep strain vs. time.</p> <p>Two repeated stress relaxation tests were performed, with initial stresses of 270 MPa and 300 MPa. Samples were re-loaded and subsequently relaxed for a few times. In the 270 MPa test, before relaxation the sample was crept for a 0.1% strain.</p> <p>These data were used for a paper published on Metals.</p> <p> </p> <p> </p>
BAM Reference Data: Creep of Single-Crystal Ni-Based Superalloy CMSX-6
<p>This publication provides comprehensive metadata and test results of constant force creep tests according to <br>DIN EN ISO 204:2019-4 on the single crystal Ni-based superalloy CMSX-6 at T = 980 °C and initial stresses<br>between 140 MPa and 230 MPa. The tests were carried out in an accredited test laboratory using calibrated <br>measuring equipment. The data were audited and are BAM reference data.</p>
Datasets for Service-Like Creep-Fatigue Experiments on Grade P92 Steel
<p>The dataset contains experimental mechanical data from complex service-like creep-fatigue experiments performed isothermally at 620 °C and a low strain amplitude of 0.2 % on tempered martensite-ferritic grade P92 steel. The data sets in text file format provide cyclic deformation (min. and max. stresses) and the total (hysteresis) data of all recorded fatigue cycles for three different creep-fatigue experiments: 1) a standard relaxation fatigue (RF) test with symmetrical dwell times of three minutes introduced at minimum and maximum strain, 2) a fully strain-controlled service-like relaxation (SLR) test combining these three-minute peak strain dwells with a 30-minute dwell in between at zero strain, and 3) a partly stress-controlled service-like creep (SLC) test combining the three-minute peak strain dwells with 30-minute dwells at constant stress.</p> <p>Further information on data and data acquisition, analysis, and experimental details are given in “<em>Experimental Data from Service-Like Creep-Fatigue Experiments on Grade P92 Steel”, </em>submitted to <a href="https://www.sciencedirect.com/journal/data-in-brief">Data in Brief</a>. Additional analyses of these datasets, as well as experimental findings and discussions are presented in “<em>Creep-Fatigue of P92 in Service-Like Tests with Combined Stress- and Strain-Controlled Dwell Times</em>”, submitted to <a href="https://www.sciencedirect.com/journal/international-journal-of-fatigue">International Journal of Fatigue</a>.</p>
Creep data
<p>These data deal with creep and shrinkage results obtained on high performance concrete in LCPC laboratory, Paris, from 1992 to 2007.</p> <p>records were carried out for 15 years for many samples.</p>
Data for "High-temperature low-cycle fatigue and fatigue-creep behaviour of Inconel 718 superalloy: Damage and deformation mechanisms"
<p>Title of dataset: Data for "High-temperature low-cycle fatigue and fatigue-creep behaviour of Inconel 718 superalloy: Damage and deformation mechanisms"<br>Name/institution/contact information: Dr. Michal Bartošák, Czech Technical University in Prague - Faculty of Mechanical Engineering, email: michal.bartosak@fs.cvut.cz<br>Date of data collection: The data were collected from the start of 2021 to the end of 2023.<br>File name structure: The data within the folder "SEM" are images of microstructural observations of selected specimens. The data within the folder "FATIGUE_LIFE" include the fatigue lifetimes, as well as the stress and strain amplitudes at mid-life, of all investigated specimens.</p> <p>See https://doi.org/10.1016/j.ijfatigue.2024.108369 for the associated article and a detailed description of the methods.</p>
CREEP Detection and prevention of cyberbullying
<p>The purpose of CREEP is to provide a set of tools to support the detection and prevention of psychological/behavioral problems of cyberbullying teenage victims. The objective will be achieved combining social media monitoring and motivational technologies (virtual coaches integrating chatbots).</p> <p><em>Homepage</em>: <a href="http://creep-project.eu/it/">http://creep-project.eu/it/</a></p>
BAM reference data: results of ASTM E139 -11 creep tests on a reference material of Nimonic 75 nickel-base alloy
<p>Results of creep tests on a certified reference material at T = 600°C and a tensile creep load of 160 MPa are provided. The raw data are available in ASCII format (*.lis files). <br> The file "Inhalt_Content_V1.1.pdf" contains further information about the files provided.<br> The evaluated results include the times to reach 2% and 4% creep strain, respectively, and the creep rate after 400 h.</p> <p>The tests were carried out in an accredited test laboratory. The calibrations of all measurands and test and measuring equipment are documented. The calibrations meet the requirements of the test procedure and are metrologically traceable.</p>
Creep Data for ERBO/1 (CMSX-4) in the range from 720-1080°C and 140-850 MPa
<p>TENSILE CREEP DATA OF ALLOY ERBO 1; TEMPERATURE RANGE: 720-1080°C; STRESS RANGE: 140-850MPa; TENSILE DIRECTIONS: [001], [110] AND [111] <br> <br> OWNER OF SX TENSILE CREEP DATA (TO BE CONTACTED FOR USE OF DATA): <br> Gunther Eggeler, Ruhr-Universität Bochum, gunther.eggeler@rub.de; David Bürger, Ruhr-Universität Bochum, david.buerger@rub.de </p> <p>We kindly ask the user of this database to cite the publication Wollgramm et al. (Material at High Temperatures, 33, 2016) when using the data, as this is the main work for this database.<br> <br> DATA COMPILED FOR EXTERNAL USE: <br> Dezember 2022 <br> <br> STRUCTURE OF DOCUMENT: <br> Table 1: This page: Overview, Background Information<br> Table 2: Raw data: Tensile direction [001]<br> Table 3: Raw data: Tensile direction [110]<br> Table 4: Raw data: Tensile direction [111]<br> <br> <br> OVERVIEW AND BACKGROUND INFORMATION <br> <br> CREEP DATA TREATMENT <br> The specimen was heated under a small preload to test temperature in 2 hours. Thermal expansion and immeidate elastic onload straining were subtracted from curves. <br> <br> CREEP DATA AS PUBLISHED IN <br> P. Wollgramm, D. Bürger, A.B. Parsa,l K. Neuking, G. Eggeler, The effect of stress, temperature and loading direction on the creep behaviour of Ni-base single crystal superalloy miniature creep specimens, Material at High Temperatures, 33 (2016) 346-360 <br> <br> SPECIMEN PREPARATION AND CREEP PROCEDURE PUBLISHED IN: <br> P. Wollgramm, D. Bürger, A.B. Parsa,l K. Neuking, G. Eggeler, The effect of stress, temperature and loading direction on the creep behaviour of Ni-base single crystal superalloy miniature creep specimens, Material at High Temperatures, 33 (2016) 346-360 <br> <br> THE EXPERIMENTS WERE PERFORMED FOR THE ALLOY ERBO1 (CMSX4 TYPE). ALLOY COMPOSITION, HEAT TREATMENT AND INITIAL MICROSTRUCTURE DESCRIBED IN: <br> A.B. Parsa, P. Wollgramm, H. Buck, C. Somsen, A. Kostka, I. Povstugar, P. Choi, D. Raabe, A. Dlouhy, J. Müller, E. Spiecker, K. Demtröder, J. Schreuer, K. Neuking, G. Eggeler, Advanced scale bridging microstructural analysis of single crystal Ni-base superalloys, Advanced Engineering Materials, 17 (2015) 216-230 <br> V. Yardley, I. Povstugar, P. Choi, D. Raabe, A.B. Parsa, A. Kostka, C. Somsen, A. Dlouhy, K. Neuking, E.P.George, G. Eggeler, On local phase equilibria and the appearance of nanoparticles in the microstructure of single-crystal Ni-base superalloys, Advanced Engineering materials, 18 (2016) 1556-1567 <br> <br> CREEP MECHANISMS AND EVOLUTION OF MICROSTRUCTURE DURING CREEP: <br> P. Wollgramm, H. Buck, K. Neuking, A.B. Parsa, S. Schuwalow, J. Rogal, R. Drautz, G. Eggeler, On the role of Re in the stress and temperature dependence of creep of Ni-base single Crystal superalloys, Materials Science and Engineering a, 628 (2015) 382-395 <br> H. Buck, P. Wollgramm, A.B. Parsa, G. Eggeler, A quantitative metallographic assessment of the evolution of porosity during processing and creep in single crystal Ni-base super alloys, Materialwissenschaft und Werkstofftechnik, 46 (2015) 577-590 <br> A.B. Parsa, P. Wollgramm, H. Buck, A. Kostka, C. Somsen, A. Dlouhy, G. Eggeler, Ledges and grooves at gamma/gamma ' interfaces of single crystal superalloys, Acta Materialia, 90 (2015) 105-117 <br> P. Wollgramm, D. Bürger, A.B. Parsa,l K. Neuking, G. Eggeler, The effect of stress, temperature and loading direction on the creep behaviour of Ni-base single crystal superalloy miniature creep specimens, Material at High Temperatures, 33 (2016) 346-360 <br> X. Wu, P. Wollgramm, C. Somsen, A. Dlouhy, A. Kostka, G. Eggeler, Double minimum creep of single crystal Ni-base superalloys, Acta Materialia, 112 (2016) 242-260 <br> X. Wu, A. Dlouhy, Y.M. Eggeler, E. Spiecker, A. Kostka, C. Somsen, G. Eggeler, On the nucleation of planar faults during low temperature and high stress creep of single crystal Ni-base superalloys, Acta Materialia, 144 (2018) 642-655 </p> <p> </p>
Physical link between effective viscosity and electrical resistivity for dislocation creep in upper mantle and its application in Northwest Xinjiang, China
<p>Cross-section of electrical resistivity extracted from the preferred 3-D resistivity model from Liu (2022)</p> <p>Format: X (Km), Z (Km), rho (ohm-m), T (K)</p> <p>Notes: Temperature(T) extracted from Sun et al., 2022, available at https://doi.org/10.5281/zenodo.6459746</p> <p> (lat, lon) of the ends of the profile: (,40.71,79.8300), -->, (,46.84,86.0700)</p>
PIE LTER extensometer measurements of marsh bank sediment deformation, soil creep in West Creek, Rowley, MA.
Muddy banks of marsh channels experience soil creep – a viscous-like slow deformation resulting in a net downslope transport. Here we present the first field evidence of soil creep in a mesotidal salt marsh using high precision measurements of soil deformation taken with a vibrating-wire extensometer over two years.
The Role of Lengthscale in the Creep of Sn-3Ag-0.5Cu Solder Microstructures
<p>The data released here is for the paper "The Role of Lengthscale in the Creep of Sn-3Ag-0.5Cu Solder Microstructures". DOI: : 10.1007/s11664-020-08697-4</p> <p>Tianhong Gu<sup>1</sup>*, Christopher M. Gourlay<sup>1</sup>, and T. Ben Britton<sup>1</sup></p> <ol> <li>Department of Materials, Imperial College London, SW7 2AZ. UK</li> </ol> <p>*Corresponding author: <a href="mailto:t.gu15@imperial.ac.uk">t.gu15@imperial.ac.uk</a>, +44 20 7594 2634</p> <p>*.bcf = Bruker BCF data for full EBSD map to plot EBSD maps<br> *xlsx. = spreadsheet of graphical data for plots in Fig2 and Fig 4 (creep curves)<br> *.tif = images used to to build up Figures (the figures are presented in the powerpoint)</p> <p>The data bundle was prepared by Tianhong Gu</p>
data set of microscale strain for creep of Carrara marble
<p>Data set used for the construction of all microscale strain maps of creep of Carrara marble. The data is stored in Matlab structures (.mat files) and contains all markers coordinates as well as deformation tensors for a 9n point average (for more details see: Quintanilla-Terminel, A., and B. Evans (2016), Heterogeneity of inelastic strain during creep of Carrara marble: Microscale strain measurement technique, J. Geophys. Res. Solid Earth, 121, 5736–5760).</p>
From creep to flow: Granular materials under cyclic shear
<p>This document includes all figures (with their captions) and SI for the manuscript entitled 'From creep to flow: Granular materials under cyclic shear' (10.48550/arXiv.2301.07309).</p>
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