Journal articles: 'In situ testing'

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Minor, Andrew M., and Gerhard Dehm. "Advances in in situ nanomechanical testing." MRS Bulletin 44, no. 06 (June 2019): 438–42. http://dx.doi.org/10.1557/mrs.2019.127.

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Knodel, PC, MJ Atwood, and J. Benoit. "Sled for In Situ Penetration Testing." Geotechnical Testing Journal 14, no. 4 (1991): 401. http://dx.doi.org/10.1520/gtj10208j.

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Nowak, JD, RC Major, J. Oh, Z. Shan, S. Asif, and OL Warren. "Developments in In Situ Nanomechanical Testing." Microscopy and Microanalysis 16, S2 (July 2010): 462–63. http://dx.doi.org/10.1017/s1431927610062598.

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Corke, D. J., and A. Smith. "Developments in in situ permeability testing." Geological Society, London, Engineering Geology Special Publications 6, no. 1 (1990): 323–33. http://dx.doi.org/10.1144/gsl.eng.1990.006.01.36.

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Popescu, M. E. "In-situ testing for geotechnical investigations." Earth-Science Reviews 22, no. 2 (September 1985): 146. http://dx.doi.org/10.1016/0012-8252(85)90008-x.

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Deuschle, Julia K., Gerhard Buerki, H. Matthias Deuschle, Susan Enders, Johann Michler, and Eduard Arzt. "In situ indentation testing of elastomers." Acta Materialia 56, no. 16 (September 2008): 4390–401. http://dx.doi.org/10.1016/j.actamat.2008.05.003.

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Gastaldi, Dario. "In Situ Testing of Flexible Electronics." Optik & Photonik 12, no. 2 (April 2017): 34–36. http://dx.doi.org/10.1002/opph.201700007.

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Hight, D. W. "Laboratory Testing: Assessing BS 5930." Geological Society, London, Engineering Geology Special Publications 2, no. 1 (1986): 43–52. http://dx.doi.org/10.1144/gsl.1986.002.01.11.

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AbstractEstablished patterns of soil behaviour are used to illustrate: the divergence between parameters from laboratory and in situ tests; the changes in effective stress caused by sampling; and the influence of initial effective stress, p′0 on the measured strength and deformation parameters for cohesive soils.Current practice in onshore site investigation continues to make use of the unconsolidated undrained triaxial test in which p′0 is not controlled. Variations in p′0 after sampling and subsequent handling are shown to contribute to the scatter in undrained compression strength data.A plea is made for BS 5930 to encourage the measurement of effective stress in all undrained triaxial tests; to recognise the non-linear nature of soils; and to urge integration of laboratory and in situ tests.

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Woeller, David J. "Unbound granular materials: laboratory testing, in situ testing, and modelling." Canadian Geotechnical Journal 37, no. 6 (2000): 1399. http://dx.doi.org/10.1139/cgj-37-6-1399.

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(Fear) Wride, C. E., P. K. Robertson, K. W. Biggar, R. G. Campanella, B. A. Hofmann, J. MO Hughes, A. Küpper, and D. J. Woeller. "Interpretation of in situ test results from the CANLEX sites." Canadian Geotechnical Journal 37, no. 3 (June 1, 2000): 505–29. http://dx.doi.org/10.1139/t00-044.

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One of the primary objectives of the Canadian Liquefaction Experiment (CANLEX) project was to evaluate in situ testing techniques and existing interpretation methods as part of the overall goal to focus and coordinate Canadian geotechnical expertise on the topic of soil liquefaction. Six sites were selected by the CANLEX project in an attempt to characterize various deposits of loose sandy soil. The sites consisted of a variety of soil deposits, including hydraulically placed sand deposits associated with the oil sands industry, natural sand deposits in the Fraser River Delta, and hydraulically placed sand deposits associated with the hard-rock mining industry. At each site, a target zone was selected and various in situ tests were performed. These included standard penetration tests, cone penetration tests, seismic downhole cone penetration tests (giving shear wave velocity measurements), geophysical (gamma-gamma) logging, and pressuremeter testing. This paper describes the techniques used in the in situ testing program at each site and presents a summary and interpretation of the results.Key words: CANLEX, in situ testing, shear wave velocity, geophysical logging, pressuremeter.

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Li, Xiaodong, Ioannis Chasiotis, and Takayuki Kitamura. "In Situ Scanning Probe Microscopy Nanomechanical Testing." MRS Bulletin 35, no. 5 (May 2010): 361–67. http://dx.doi.org/10.1557/mrs2010.568.

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AbstractScanning probe microscopy (SPM) has undergone rapid advancements since its invention almost three decades ago. Applications have been extended from topographical imaging to the measurement of magnetic fields, frictional forces, electric potentials, capacitance, current flow, piezoelectric response and temperature (to name a few) of inorganic and organic materials, as well as biological entities. Here, we limit our focus to mechanical characterization by taking advantage of the unique imaging and force/displacement sensing capabilities of SPM. This article presents state-of-the-art in situ SPM nanomechanical testing methods spanning (1) probing the mechanical properties of individual one-dimensional nanostructures; (2) mapping local, nanoscale strain fields, fracture, and wear damage of nanostructured heterogeneous materials; and (3) measuring the interfacial strength of nanostructures. The article highlights several novel SPM nanomechanical testing methods, which are expected to lead to further advancements in nanoscale mechanical testing and instrumentation toward the exploration and fundamental understanding of mechanical property size effects in nanomaterials.

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Hartman, Anton M., Michael D. Gilchrsit, Philip MO Owende, Shane M. Ward, and F. Clancy. "In-situ Accelerated Testing of Bituminous Mixtures." Road Materials and Pavement Design 2, no. 4 (December 15, 2001): 337–57. http://dx.doi.org/10.3166/rmpd.2.337-357.

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Kang, Wonmo, and M. Taher A. Saif. "In situ thermomechanical testing for micro/nanomaterials." MRS Communications 1, no. 1 (August 12, 2011): 13–16. http://dx.doi.org/10.1557/mrc.2011.7.

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Hartman, Anton M., Michael D. Gilchrist, Philip M. O. Owende, Shane M. Ward, and F. Clancy. "In-situ Accelerated Testing of Bituminous Mixtures." Road Materials and Pavement Design 2, no. 4 (January 2001): 337–57. http://dx.doi.org/10.1080/14680629.2001.9689907.

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Fernuik, Neal, and Moir Haug. "Evaluation of In Situ Permeability Testing Methods." Journal of Geotechnical Engineering 116, no. 2 (February 1990): 297–311. http://dx.doi.org/10.1061/(asce)0733-9410(1990)116:2(297).

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Cook, P. "In situ pneumatic testing at Yucca Mountain." International Journal of Rock Mechanics and Mining Sciences 37, no. 1-2 (January 2000): 357–67. http://dx.doi.org/10.1016/s1365-1609(99)00111-2.

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Kiener, D., P. Hosemann, S. A. Maloy, and A. M. Minor. "In situ nanocompression testing of irradiated copper." Nature Materials 10, no. 8 (June 26, 2011): 608–13. http://dx.doi.org/10.1038/nmat3055.

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Peeters, Karl, Roy De Maesschalck, Hugo Bohets, Koen Vanhoutte, and Luc Nagels. "In situ dissolution testing using potentiometric sensors." European Journal of Pharmaceutical Sciences 34, no. 4-5 (August 2008): 243–49. http://dx.doi.org/10.1016/j.ejps.2008.04.009.

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Hashemian, H. M., K. M. Petersen, D. W. Mitchell, M. Hashemian, and D. D. Beverly. "In situ response time testing of thermocouples." ISA Transactions 29, no. 4 (November 1990): 97–104. http://dx.doi.org/10.1016/0019-0578(90)90046-n.

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Bredemo, R., and P. A. Gradin. "Testing of in situ properties of adhesives." International Journal of Adhesion and Adhesives 6, no. 3 (July 1986): 153–56. http://dx.doi.org/10.1016/0143-7496(86)90019-9.

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Lupinacci, A., J. Kacher, A. Eilenberg, A. A. Shapiro, P. Hosemann, and A. M. Minor. "Cryogenic in situ microcompression testing of Sn." Acta Materialia 78 (October 2014): 56–64. http://dx.doi.org/10.1016/j.actamat.2014.06.026.

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Bekheet, Wael, A. O. Abd El Halim, Said M. Easa, and Joseph Ponniah. "Investigation of shear stiffness and rutting in asphalt concrete mixes." Canadian Journal of Civil Engineering 31, no. 2 (February 1, 2004): 253–62. http://dx.doi.org/10.1139/l03-093.

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Field and laboratory testing programs were set up to evaluate the in-situ shear properties of asphalt concrete mixes using the newly developed in-situ shear stiffness testing (InSiSSTTM) facility versus the laboratory evaluation using the resilient modulus and torsion testing. The LTPP SPS-9A 870900 test site, which has six similar pavement sections with different AC surface mix properties, was tested in the field using the InSiSSTTM and core samples were extracted from the site and tested in the laboratory. The results of the testing program were correlated with the rutting of the test sections over a 4-year period. In this paper, the InSiSSTTM facility is briefly introduced and the interpretation of the data collected is presented. The experimental program and analysis procedures are then outlined. The analysis of variance was used to test the significance of the results, and a bivariate analysis was performed for correlating rutting (as a criterion variable) and the different laboratory and field measured material properties (as predictor variables). Finally, a regression analysis between the in-situ shear stiffness and pavement rutting is presented. The results of the study showed that the in-situ shear stiffness had the highest correlation coefficient with rutting rate, and this might be a suitable measure to characterize the asphalt mixes and evaluate the rutting potential of asphalt pavements. This important result should be useful to the pavement engineers interested in the evaluation of rutting using a simple field measure.Key words: in-situ testing, laboratory testing, shear stiffness, shear properties, asphalt concrete, pavements, rutting, long-term performance.

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Monaco, Paola, Anna Chiaradonna, Diego Marchetti, Sara Amoroso, Jean-Sebastien L’Heureux, and Thi Minh Hue Le. "Medusa SDMT testing at the Onsøy Geo-Test Site, Norway." E3S Web of Conferences 544 (2024): 02002. http://dx.doi.org/10.1051/e3sconf/202454402002.

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The Medusa SDMT is the last-generation, fully automated version of the seismic dilatometer (SDMT). An extensive in situ testing campaign with the Medusa SDMT was carried out in June 2022 in different soil types at four well-known benchmark test sites in Norway, part of the Geo-Test Sites (NGTS) research infrastructure managed by the Norwegian Geotechnical Institute. The experimental campaign was conducted as part of the Transnational Access project – JELLYFISh funded by H2020-GEOLAB. This paper presents a preliminary assessment of significant results obtained by Medusa SDMT at the Onsoy test site, a soft marine clay. The data is compared to available in situ and laboratory data previously published at the Onsøy test site. The results show that the Medusa SDMT data are consistent with traditional (pneumatic) SDMT results. Furthermore, the parameters obtained from the interpretation of Medusa SDMT data, in particular the overconsolidation ratio OCR, the coefficient of earth pressure at rest K0, and the undrained shear strength su agree generally well with the corresponding parameters obtained in past investigations from other in situ and laboratory tests.

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Meijer, G. J., G. Bengough, J. Knappett, K. Loades, and B. Nicoll. "In situ root identification through blade penetrometer testing – part 2: field testing." Géotechnique 68, no. 4 (April 2018): 320–31. http://dx.doi.org/10.1680/jgeot.16.p.204.

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Tavukçuoğlu, Ayşe. "Non-Destructive Testing for Building Diagnostics and Monitoring: Experience Achieved with Case Studies." MATEC Web of Conferences 149 (2018): 01015. http://dx.doi.org/10.1051/matecconf/201814901015.

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Building inspection on site, in other words in-situ examinations of buildings is a troublesome work that necessitates the use of non-destructive investigation (NDT) techniques. One of the main concerns of non-destructive testing studies is to improve in-situ use of NDT techniques for diagnostic and monitoring studies. The quantitative infrared thermography (QIRT) and ultrasonic pulse velocity (UPV) measurements have distinct importance in that regard. The joint use of QIRT and ultrasonic testing allows in-situ evaluation and monitoring of historical structures and contemporary ones in relation to moisture, thermal, materials and structural failures while the buildings themselves remain intact. For instances, those methods are useful for detection of visible and invisible cracks, thermal bridges and damp zones in building materials, components and functional systems as well as for soundness assessment of materials and thermal performance assessment of building components. In addition, those methods are promising for moisture content analyses in materials and monitoring the success of conservation treatments or interventions in structures. The in-situ NDT studies for diagnostic purposes should start with the mapping of decay forms and scanning of building surfaces with infrared images. Quantitative analyses are shaped for data acquisition on site and at laboratory from representative sound and problem areas in structures or laboratory samples. Laboratory analyses are needed to support in-situ examinations and to establish the reference data for better interpretation of in situ data. Advances in laboratory tests using IRT and ultrasonic testing are guiding for in-situ materials investigations based on measurable parameters. The knowledge and experience on QIRT and ultrasonic testing are promising for the innovative studies on today’s materials technologies, building science and conservation/maintenance practices. Such studies demand a multi-disciplinary approach that leads to bring together knowledge on materials science and building science.

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Lupinacci, A., J. Kacher, A. A. Shapiro, P. Hosemann, and A. M. Minor. "Cryogenic in-situ clamped beam testing of Sn96." Journal of Materials Research 36, no. 8 (March 26, 2021): 1751–61. http://dx.doi.org/10.1557/s43578-021-00157-x.

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Reiterer, Michael, Stefan Lachinger, Josef Fink, and Sebastian-Zoran Bruschetini-Ambro. "In-Situ Experimental Modal Testing of Railway Bridges." Proceedings 2, no. 8 (May 30, 2018): 413. http://dx.doi.org/10.3390/icem18-05286.

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Novak, Libor, Petr Glajc, and Ondrej Klvac. "Battery in situ Electrical Testing in FIB-SEM." Microscopy and Microanalysis 28, S1 (July 22, 2022): 834–35. http://dx.doi.org/10.1017/s1431927622003737.

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LEE, L. T., J. L. WIBOWO, P. A. TAYLOR, and M. E. GLYNN. "In Situ Erosion Testing and Clay Levee Erodibility." Environmental and Engineering Geoscience 15, no. 2 (May 1, 2009): 101–6. http://dx.doi.org/10.2113/gseegeosci.15.2.101.

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Legros, M., D. S. Gianola, and C. Motz. "Quantitative In Situ Mechanical Testing in Electron Microscopes." MRS Bulletin 35, no. 5 (May 2010): 354–60. http://dx.doi.org/10.1557/mrs2010.567.

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AbstractThis article is devoted to recent progress in the area of in situ electron microscopy (scanning and transmission) and will focus on quantitative aspects of these techniques as applied to the deformation of materials. Selected recent experiments are chosen to illustrate how these techniques have benefited from improvements ranging from sample preparation to digital image acquisition. Known for its ability to capture the underlying phenomena of plastic deformation as they occur, in situ electron microscopy has evolved to a level where fully instrumented micro- and nanomechanical tests can be performed simultaneously.

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Price, W. F., and J. P. Hynes. "In-situ strength testing of high strength concrete." Magazine of Concrete Research 48, no. 176 (September 1996): 189–97. http://dx.doi.org/10.1680/macr.1996.48.176.189.

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Lu, Shaoning, Zaoyang Guo, Weiqiang Ding, Dmitriy A. Dikin, Junghoon Lee, and Rodney S. Ruoff. "In situ mechanical testing of templated carbon nanotubes." Review of Scientific Instruments 77, no. 12 (December 2006): 125101. http://dx.doi.org/10.1063/1.2400212.

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Duprat, Camille, Hélène Berthet, Jason S. Wexler, Olivia du Roure, and Anke Lindner. "Microfluidic in situ mechanical testing of photopolymerized gels." Lab on a Chip 15, no. 1 (2015): 244–52. http://dx.doi.org/10.1039/c4lc01034e.

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Choong Kog, Yue. "Testing Plan for Estimating In Situ Concrete Strength." Practice Periodical on Structural Design and Construction 24, no. 2 (May 2019): 04019001. http://dx.doi.org/10.1061/(asce)sc.1943-5576.0000410.

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Hansen, Brad M. S., and Norm Murray. "TESTING IN SITU ASSEMBLY WITH THEKEPLERPLANET CANDIDATE SAMPLE." Astrophysical Journal 775, no. 1 (September 4, 2013): 53. http://dx.doi.org/10.1088/0004-637x/775/1/53.

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Van Swygenhoven, Helena, and Steven Van Petegem. "In-situ mechanical testing during X-ray diffraction." Materials Characterization 78 (April 2013): 47–59. http://dx.doi.org/10.1016/j.matchar.2012.12.010.

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Haase, Martin F., Nima Sharifi-Mood, Daeyeon Lee, and Kathleen J. Stebe. "In Situ Mechanical Testing of Nanostructured Bijel Fibers." ACS Nano 10, no. 6 (May 31, 2016): 6338–44. http://dx.doi.org/10.1021/acsnano.6b02660.

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Guo, Hua, Will J. Hardy, Panpan Zhou, Douglas Natelson, and Jun Lou. "In-situ Thermal Testing on Nanostructures in TEM." Microscopy and Microanalysis 22, S3 (July 2016): 770–71. http://dx.doi.org/10.1017/s1431927616004700.

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Wheeler, J. M., J. Wehrs, G. Favaro, and J. Michler. "In-situ optical oblique observation of scratch testing." Surface and Coatings Technology 258 (November 2014): 127–33. http://dx.doi.org/10.1016/j.surfcoat.2014.09.045.

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Agrawal, Manoj, Chandra Prakash Antham, Sarah Salah Jalal, Amandeep Nagpal, B. Rajalakshmi, and Shashi Prakash Dwivedi. "Innovative Advances and Prospects in In Situ Materials Testing: A Comprehensive Review." E3S Web of Conferences 505 (2024): 01031. http://dx.doi.org/10.1051/e3sconf/202450501031.

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Real-time analysis of materials in use is crucial in the in-situ field. In situ testing is essential for assessing materials in extreme conditions such as aviation, energy, and military applications. Advancement in situ testing methods have opened up research prospects. Strain measurement, deformation conduct mechanical characteristics, microstructure, spectral analysis, electrical chemistry, corrosion resistance, thermal resistance, elevated temperature testing, fatigue testing, nano mechanics, non-destructive evaluation, and in situ microscopy have advanced. These advances enable anatomical and practical material investigation, improving understanding of their function. Characterization methods include acoustic emission, neutron scattering, X-ray diffraction, synchrotron radiation, and scanning probe microscopy have improved in situ testing. With these technologies, scientists can build new materials with specified properties and research material behaviour fundamentals. In situ testing helps develop high-performance materials and understand how they react in extreme situations. In real-world applications, in situ testing improves material response comprehension and aids material design and optimization in several industries. X-ray diffraction, Synchrotron radiation techniques are suitable conducting in situ analysis on crystalline solids. While Scanning electron microscopy, electron microscopy and acoustic emission techniques can be used to determine properties up to nano level.

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Borosnyói, Adorján, and Katalin Szilágyi. "Studies on the spatial variability of rebound hammer test results recorded at in-situ testing." Epitoanyag - Journal of Silicate Based and Composite Materials 65, no. 4 (2013): 102–6. http://dx.doi.org/10.14382/epitoanyag-jsbcm.2013.19.

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Schofield, Louise, Emma Welfare, and Simon Mercer. "In-situ simulation." Trauma 20, no. 4 (July 23, 2017): 281–88. http://dx.doi.org/10.1177/1460408617711729.

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‘In-situ’ simulation or simulation ‘in the original place’ is gaining popularity as an educational modality. This article discusses the advantages and disadvantages of performing simulation in the clinical workplace drawing on the authors’ experience, particularly for trauma teams and medical emergency teams. ‘In-situ’ simulation is a valuable tool for testing new guidelines and assessing for latent errors in the workplace.

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Velez, Nathan R., Frances I. Allen, Mary Ann Jones, Jenn Donohue, Wei Li, Kristofer Pister, Sanjay Govindjee, Gregory F. Meyers, and Andrew M. Minor. "Nanomechanical testing of freestanding polymer films: in situ tensile testing and Tg measurement." Journal of Materials Research 36, no. 12 (April 2, 2021): 2456–64. http://dx.doi.org/10.1557/s43578-021-00163-z.

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Abstract A method for small-scale testing and imaging of freestanding, microtomed polymer films using a push-to-pull device is presented. Central to this method was the development of a sample preparation technique which utilized solvents at cryogenic temperatures to transfer and deposit delicate thin films onto the microfabricated push-to-pull devices. The preparation of focused ion beam (FIB)-milled tensile specimens enabled quantitative in situ TEM tensile testing, but artifacts associated with ion and electron beam irradiation motivated the development of a FIB-free specimen preparation method. The FIB-free method was enabled by the design and fabrication of oversized strain-locking push-to-pull devices. An adaptation for push-to-pull devices to be compatible with an instrumented nanoindenter expanded the testing capabilities to include in situ heating. These innovations provided quantitative mechanical testing, postmortem TEM imaging, and the ability to measure the glass transition temperature, via dynamic mechanical analysis, of freestanding polymer films. Results for each of these mentioned characterization methods are presented and discussed in terms of polymer nanomechanics. Graphic Abstract

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Robertson, P. K. "In situ testing and its application to foundation engineering." Canadian Geotechnical Journal 23, no. 4 (November 1, 1986): 573–94. http://dx.doi.org/10.1139/t86-086.

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The status of in situ testing and its application to foundation engineering are presented and discussed. The in situ test methods are discussed within the framework of three groups: logging, specific, and combined test methods. The major logging test methods discussed are standard penetration test (SPT), cone penetration test (CPT), and the flat plate dilatometer test (DMT). The major specific test methods discussed are the prebored pressuremeter test (PMT), the self-bored pressuremeter test (SBPMT), and the screw plate load test (SPLT). Discussion is also presented on recent tests that combine features of logging tests (using the CPT) and specific tests (e.g. the seismic, the electrical resistivity/dielectric, and the lateral stress sensing cone penetration tests). A brief discussion is also presented on the applicability, as perceived by the author, of existing in situ test methods and the future of in situ testing applied to foundation engineering. Key words: in situ testing, foundation engineering, penetration testing, pressuremeter.

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Masterson, D. M. "Interpretation of in situ borehole ice strength measurement tests." Canadian Journal of Civil Engineering 23, no. 1 (February 1, 1996): 165–79. http://dx.doi.org/10.1139/l96-017.

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A hydraulic borehole jack for the testing of ice confined compressive strength and elastic modulus through the depth of a 150 mm hole at regular intervals is described. Interpretation of the pressure and deformation information obtained is accomplished using standard equilibrium and compatibility equations for plate bearing tests applied to the expansion of a cavity of crushed material surrounded by an elastic medium. The jack tests yield confined compressive strength and elastic modulus. These are basic, universally understood, engineering properties of a material useful in practice. The jack has been used successfully to determine the in situ strength and stiffness at any combination of depths required in a wide variety of conglomerate freshwater and sea ice. The results have been used to verify the strength and bearing capacity of ice platforms and roads and to help quantify global ice loads and local ice pressures on offshore structures. Key words: ice, ice testing, borehole testing, ice strength, ice roads, ice structures, field testing, field strength testing, in situ strength, in situ testing, ice in situ testing, ice platforms.

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Morgan, Quentin, John Pope, and Peter Ramsay. "Concurrent in-situ measurement of flow capacity, gas content and saturation." APPEA Journal 53, no. 1 (2013): 273. http://dx.doi.org/10.1071/aj12023.

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A new core-less testing capability has been developed to provide concurrent measurements of coal seam flow capacity and gas content at in-situ conditions. The fluid-based measurement principles are intended to overcome time constraints, accuracy limitations, and cost implications of discrete measurements attributed to traditional ex-situ measurements on core samples. Details of measurement principles, associated enabling technologies, and generic test procedures have been disclosed in a previous publication. In 2012 a number of field trials were conducted with this new service for both coal mine operators and CSG operators. This peer-reviewed paper will detail pre-job planning, well site execution, and data analysis for one of these trials, which involved testing several seams across two wells, and will illustrate comparison with data acquired using conventional testing techniques from offset wells. This peer-reviewed paper will also highlight key learnings and overall performance, and explain how the learned lessons can be applied to improve testing efficacy and data quality.

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Amer, Mohamed, Qamar Hayat, Vit Janik, Nigel Jennett, Jon Nottingham, and Mingwen Bai. "A Review on In Situ Mechanical Testing of Coatings." Coatings 12, no. 3 (February 23, 2022): 299. http://dx.doi.org/10.3390/coatings12030299.

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Real-time evaluation of materials’ mechanical response is crucial to further improve the performance of surfaces and coatings because the widely used post-processing evaluation techniques (e.g., fractography analysis) cannot provide deep insight into the deformation and damage mechanisms that occur and changes in coatings’ material corresponding to the dynamic thermomechanical loading conditions. The advanced in situ examination methods offer deep insight into mechanical behavior and material failure with remarkable range and resolution of length scales, microstructure, and loading conditions. This article presents a review on the in situ mechanical testing of coatings under tensile and bending examinations, highlighting the commonly used in situ monitoring techniques in coating testing and challenges related to such techniques.

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Barnoush, Afrooz, Peter Hosemann, Jon Molina-Aldareguia, and Jeffrey M. Wheeler. "In situ small-scale mechanical testing under extreme environments." MRS Bulletin 44, no. 06 (June 2019): 471–77. http://dx.doi.org/10.1557/mrs.2019.126.

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Abdel Rahim, Khalid Abdel Naser. "Evaluating Concrete Quality using Nondestructive In-situ Testing Methods." Revista Tecnología y Ciencia, no. 36 (October 10, 2019): 22–40. http://dx.doi.org/10.33414/rtyc.36.22-40.2019.

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This manuscript investigate the quality of concrete using non-destructive in-situ testing.The in-situ testing is a process by which different test are carried out such as rebound hammer, ultrasonic pulse veloc-ity, initial surface absorption test and fig air, to determine thein-situ strength, durability and deterioration, air permeability, concrete quality control andperformance. Additionally, the quality of concrete was researched using test methods with experimental results. Moreover, this research has found that (1) the increase in w/c ra-tioleads to a decrease in compressive strength and ultrasonic pulse velocity. Thus, lower w/cratio gives a bet-ter concrete strength in terms of quality, (2) the quicker the ultrasonic pulse travels through concrete indicates that the concrete is denser, therefore, better quality, (3) the lower initial surface absorption value indicates a better concrete with respect to porosity and (4) the w/c ratio plays an important role in the strength and per-meability of concrete.

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Mayne, Paul W., and Chris Dumas. "Enhanced in Situ Geotechnical Testing for Bridge Foundation Analysis." Transportation Research Record: Journal of the Transportation Research Board 1569, no. 1 (January 1997): 26–35. http://dx.doi.org/10.3141/1569-04.

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Abstract:

Geotechnical analyses of bridge foundations are complex because of the difficulties in addressing the highly nonlinear and anisotropic stress-strain-strength-time behavior of soils, from the nondestructive small-strain range region through to failure conditions. Often engineering practice overrelies on a single test value from soil borings [the standard penetration test (SPT) N-value] for the evaluation of all necessary geotechnical parameters, which is unrealistic. There exists, in fact, a variety of in situ measurement devices for the better definition of soil engineering properties, particularly hybrid devices such as the seismic piezocone and seismic flat dilatometer, as related to foundation applications. The importance of small-strain field stiffness measurements (i.e., shear wave velocity) is discussed and illustrated with two case studies involving the axial response of drilled shaft and driven pile foundations. The examples are reviewed within the context of elastic continuum theory but may be applied similarly for use in site-specific determinations of nonlinear spring constants and well-known t-z, p-y, or q-z curves, or all three.

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Journal articles on the topic 'In situ testing'

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