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Artykuły w czasopismach na temat "Bender element"
Leong, E. C., J. Cahyadi i H. Rahardjo. "Measuring shear and compression wave velocities of soil using bender–extender elements". Canadian Geotechnical Journal 46, nr 7 (lipiec 2009): 792–812. http://dx.doi.org/10.1139/t09-026.
Pełny tekst źródłaBlewett, J., I. J. Blewett i P. K. Woodward. "Phase and amplitude responses associated with the measurement of shear-wave velocity in sand by bender elements". Canadian Geotechnical Journal 37, nr 6 (1.12.2000): 1348–57. http://dx.doi.org/10.1139/t00-047.
Pełny tekst źródłaViggiani, Giulia, i J. H. Atkinson. "Interpretation of bender element tests". Géotechnique 45, nr 1 (marzec 1995): 149–54. http://dx.doi.org/10.1680/geot.1995.45.1.149.
Pełny tekst źródłaChaney, RC, KR Demars, R. Arulnathan, RW Boulanger i MF Riemer. "Analysis of Bender Element Tests". Geotechnical Testing Journal 21, nr 2 (1998): 120. http://dx.doi.org/10.1520/gtj10750j.
Pełny tekst źródłaLu, Wei, Yu Lan i Tianfang Zhou. "Finite element analysis of double resonance bender disk low frequency transducer". MATEC Web of Conferences 283 (2019): 05008. http://dx.doi.org/10.1051/matecconf/201928305008.
Pełny tekst źródłaZhao, Zhiwei, Jinqiu Wu, Xiaofei Qi, Gang Qiao, Wenbo Zhang, Chaofan Zhang i Kang Guo. "Design of a Broadband Cavity Baffle Bender Transducer". Journal of Marine Science and Engineering 10, nr 5 (16.05.2022): 680. http://dx.doi.org/10.3390/jmse10050680.
Pełny tekst źródłaSantamarina, J. C., i M. A. Fam. "Discussion: Interpretation of bender element tests". Géotechnique 47, nr 4 (wrzesień 1997): 873–77. http://dx.doi.org/10.1680/geot.1997.47.4.873.
Pełny tekst źródłaBONAL, J., S. DONOHUE i C. McNALLY. "Wavelet analysis of bender element signals". Géotechnique 62, nr 3 (marzec 2012): 243–52. http://dx.doi.org/10.1680/geot.9.p.052.
Pełny tekst źródłaPiriyakul, Keeratikan, i Janjit Iamchaturapatr. "Horizontally Mounted Bender Elements for Measuring Shear Modulus in Soaked Sand Specimen". Advanced Materials Research 931-932 (maj 2014): 496–500. http://dx.doi.org/10.4028/www.scientific.net/amr.931-932.496.
Pełny tekst źródłaPiriyakul, Keeratikan. "Application of the Non-Destructive Testing Method to Determine the Gmax of Bangkok Clay". Applied Mechanics and Materials 418 (wrzesień 2013): 157–60. http://dx.doi.org/10.4028/www.scientific.net/amm.418.157.
Pełny tekst źródłaRozprawy doktorskie na temat "Bender element"
Johnson, Sean (Sean Michael). "Modeling a bender element test using Abaqus Finite Element Program". Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/64573.
Pełny tekst źródłaCataloged from PDF version of thesis.
Includes bibliographical references (p. 253-255).
Finite Element Methods hold promise for modeling the behavior of an unsaturated soil specimen subjected to bender element agitation. The immediate objective of this research project is to reproduce a bender element test using Abaqus Finite Element Software assuming elastic and isotropic conditions. Extensive compressions were made of bender element testing of unsaturated Ticino Sand specimens uniaxially compressed and the Abaqus Finite Element Method program simulation. The research determined that the mesh resolution of a numerical analysis are optimal at a resolution of a twentieth of the shear wavelength and the integration time step has a negligible effect on the observed wave velocity. Moreover, it is possible to reproduce an uniaxially stressed bender element experiments of unsaturated Ticino sand in an Abaqus Finite Element Method program with relatively minimal error of the body wave velocity measurements if the source receiver distance is beyond two shear wavelengths and the reflected signals from the boundaries are suppressed.
by Sean Johnson.
S.M.
Lo, Kai Fung. "Small-strain shear modulus and damping ratio determination by bender element /". View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202005%20LOK.
Pełny tekst źródłaKnutsen, Mirjam. "On Determination of Gmax by Bender Element and Cross-Hole Testing". Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for bygg, anlegg og transport, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-27232.
Pełny tekst źródłaHasan, Ahmed M. "Small strain elastic behaviour of unsaturated soil investigated by bender/extender element testing". Thesis, University of Glasgow, 2016. http://theses.gla.ac.uk/7492/.
Pełny tekst źródłaLi, Bo. "EFFECT OF FABRIC ANISOTROPY ON THE DYNAMIC MECHANICAL BEHAVIOR OF GRANULAR MATERIALS". Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1291071699.
Pełny tekst źródłaAraya, Contreras Sofía Esperanza. "Medición de parámetros dinámicos de arena con finos mediante columna resonante". Tesis, Universidad de Chile, 2017. http://repositorio.uchile.cl/handle/2250/145564.
Pełny tekst źródłaChile es uno de los países más sísmicos del mundo; escenario de grandes terremotos en el pasado y con toda seguridad, en el futuro. En particular, los suelos son afectados por movimientos sísmicos. Por lo que es importante conocer las propiedades dinámicas del suelo (rigidez máxima Gmax , curvas de degradación G/Gmax y el amortiguamiento D ) para el correcto diseño de proyectos de ingeniería. Existen distintos ensayos para medir parámetros dinámicos del suelo, sometiéndolos a pequeñas y grandes deformaciones. El módulo de corte G y el amortiguamiento D se obtienen con ensayos de laboratorio y terreno. En particular, en laboratorio, uno de los ensayos que cubre un mayor rango de deformación es el de columna resonante (D4015-15, 2016). Este trabajo de título consistió en realizar ensayos de columna resonante en arenas de relave del muro del tranque El Torito (Mina de cobre El Soldado). Los ensayos fueron hechos con probetas de arena preparadas entre 35% y 85% de densidad relativa, y confinamientos que variaron entre 1 [kg/cm2] y 4 [kg/cm2]. Los resultados obtenidos se compararon con los obtenidos en el equipo Bender Element. Los Gmax dieron entre 40 y 180 [MPa]. Los ensayos de columna resonante entregaron rigideces máximas moderadamente mayores (5%) a los de Bender Element. Esto debido posiblemente a que las probetas del primer ensayo se vieron menos alteradas en su confección. Todas las curvas de degradación del módulo de corte G/Gmax y amortiguamiento D varían respecto a su deformación al corte con una tendencia que concuerda con lo observado en la literatura. A mayor confinamiento, las muestras tienen mayor rigidez inicial, mayor G/Gmax y menor amortiguamiento. A mayor índice de vacíos, las probetas tienen menor rigidez inicial y mayor G/Gmax , el amortiguamiento no tiene mayor variación respecto este parámetro. El comportamiento de las muestras al 5% de saturación es similar al de las muestras saturadas.
Karam, Jean-Paul. "Etude de la rhéologie des loess du Nord de la France - Application à l'évaluation de leur risque de liquéfaction". Phd thesis, Ecole des Ponts ParisTech, 2006. http://pastel.archives-ouvertes.fr/pastel-00002185.
Pełny tekst źródłaRizzi, Vera Federica. "Studio della riattivazione della frana di Montevecchio (FC) mediante misure in sito e in laboratorio". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13411/.
Pełny tekst źródłaMohsin, AKM. "AUTOMATED Gmax MEASUREMENT TO EXPLORE DEGRADATION OF ARTIFICIALLY CEMENTED CARBONATE SAND". Thesis, The University of Sydney, 2008. http://hdl.handle.net/2123/5003.
Pełny tekst źródłaMohsin, AKM. "AUTOMATED Gmax MEASUREMENT TO EXPLORE DEGRADATION OF ARTIFICIALLY CEMENTED CARBONATE SAND". University of Sydney, 2008. http://hdl.handle.net/2123/5003.
Pełny tekst źródłaSoil Stiffness is an important parameter for any geotechnical engineering design. In laboratory tests it can be derived from stress-strain curves or from dynamic measurement based on wave propagation theory. The second method is a more accurate and direct method for measuring stiffness at very small strains. Until now dynamic measurements have usually been obtained manually from the triaxial test. Attempts have been made to automate the procedure but have apparently failed due to the high level of variability in dynamic measurements. Moreover, triaxial tests of soil can be very lengthy and manual dynamic measurements can be very tedious and impractical for long stress-path tests. In this research a computer program has been developed to automate the stiffness measurement (using bender elements) based on the cross- correlation technique. In this method the program records all the peaks and corresponding arrival times in the cross-correlation signal during the test. The stiffness is calculated and displayed on the screen continuously. The Bender Element enabled to get the small strain shear modulus. An arbitrary “Chirp” waveform of 4 kHz frequency was used for this purpose. Subsequently Bender Element test results were checked by ‘Sine’ waveforms of frequencies 5kHz to 20kHz, as well as by manual inspection of the arrival time. This thesis discusses the method and some of the difficulties in truly automating the process. Finally some results from a number of stress path tests on uncemented and cemented calcareous sediments are presented. Bender elements have been used by many researchers to determine the shear modulus at small strain. Most previous studies have used visual observation of arrival time, which is time consuming and often requires some judgement from the operator. This thesis will describe the use of cross-correlation as a method for automation of Gmax measurement. Cross-correlation has been claimed to be unreliable in the past. However, it will be shown that provided several peaks in the cross-correlation signal are monitored it is possible to follow the variation of Gmax throughout consolidation and shearing. The measurement can be made at regular intervals within the software controlling a stress-path apparatus. Details of the apparatus used and practical considerations including selection of waveform and frequency are discussed. A series of drained cyclic triaxial tests was carried out on artificially cemented and uncemented calcareous soil of dry unit weights 13, 15, and 17 kN/m3 and sheared with constant effective confining stress 300 kPa. Gypsum cement contents of 10%, 20% and 30% of the dry soil weight were used. In addition a series of stress path tests were performed on Toyuora sand samples. Results will be presented for two uncemented and one cemented sand. In addition to the bender elements, all tests had internal instrumentation to monitor axial and lateral strains. Results will be presented for Toyura sand to show that the measurements are consistent with those obtained by other methods. Results will also be presented for carbonate sand subjected to a wide range of stress paths. Finally, results will be presented for the carbonate sand cemented with gypsum. The degradation of Gmax of the cemented soil subjected to variety of monotonic and cyclic stress-paths is presented. Analysis of the results includes assessment of the factors influencing Gmax for uncemented sand. Preliminary analysis indicates that in order of importance these are the mean effective stress, the stress history, void ratio and stress ratio. For cemented sand, Gmax is initially constant and independent of stress path. After yielding the modulus degrades, becoming increasingly stress level dependent and eventually approaches the value for uncemented sand. Factors influencing the rate of degradation are discussed. For the Toyuora sand samples the effects of end restraint on the stress-strain response at small strains were investigated. The conventional method of mounting triaxial specimen has the effect of introducing friction between sample and end platen during a compression test. This inevitably restricts free lateral movement of the specimen ends. Frictional restraint at the sample ends causes the formation of 'dead zones' adjacent to the platens, resulting in non-uniform distribution of stress and strain (and of pore pressure if undrained). On the other hand the specimen with 'free' ends maintain an approximate cylindrical shape instead of barrelling when subjected to compression, resulting in a more uniform stress distribution.
Części książek na temat "Bender element"
Moldovan, Ionuţ Dragoş, Abdalla Almukashfi i António Gomes Correia. "A Toolbox for the Automatic Interpretation of Bender Element Tests in Geomechanics". W Lecture Notes in Civil Engineering, 125–44. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-20241-4_10.
Pełny tekst źródłaKang, Mingu, Issam I. A. Qamhia, Erol Tutumluer, Won-Taek Hong, Jesse D. Doyle, Harold T. Carr, Wayne D. Hodo, Ben C. Cox i Jeb S. Tingle. "Bender Element Field Sensors for Base Course Stiffness Measurements in Airport Pavements". W Lecture Notes in Civil Engineering, 861–76. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77234-5_71.
Pełny tekst źródłaBhutale, Sandip Shivaji, i R. S. Dalvi. "Effect of Fines Content on Dynamic Properties of Sand Using Bender Element". W Lecture Notes in Civil Engineering, 11–22. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4001-5_2.
Pełny tekst źródłaPiriyakul, Keeratikan, i Janjit Iamchaturapatr. "Deep Soil Mixing Method for the Bio-cement by Means of Bender Element Test". W Advances in Laboratory Testing and Modelling of Soils and Shales (ATMSS), 375–81. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-52773-4_44.
Pełny tekst źródłaChan, Chee-Ming, i Mohammed Mansoor Mofreh Gubran. "Curing Behaviour of Lightly Solidified Clays Monitored with Bender Element and Electrical Conductivity Measurements". W Sustainable Civil Infrastructures, 27–37. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95771-5_3.
Pełny tekst źródłaKang, Mingu, Issam I. A. Qamhia, Erol Tutumluer, Murphy Flynn, Navneet Garg i Wilfredo Villafane. "Near Geogrid Stiffness Quantification in Airport Pavement Base Layers Using Bender Element Field Sensor". W Lecture Notes in Civil Engineering, 703–15. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77234-5_58.
Pełny tekst źródłaChandra, Kannekanti Prithvi, i Kadali Srinivas. "Estimation of Arrival Time of Shear Waves in Fine-Grained Soils Using Bender Element Test". W Lecture Notes in Civil Engineering, 213–32. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3662-5_18.
Pełny tekst źródłaLiu, Xin, i Jun Yang. "A Parallel Comparison of Small-Strain Shear Modulus in Bender Element and Resonant Column Tests". W Springer Series in Geomechanics and Geoengineering, 564–68. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97112-4_126.
Pełny tekst źródłaChang, Il Han, Gye Chun Cho, Joo Gong Lee i Lee Hyung Kim. "Characterization of Clay Sedimentation Using Piezoelectric Bender Elements". W Advanced Nondestructive Evaluation I, 1415–20. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-412-x.1415.
Pełny tekst źródłaJuneja, A., i M. Endait. "Characterisation of Vesicular Basalts of Mumbai Using Piezoceramic Bender Elements". W Developments in Geotechnical Engineering, 203–12. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0505-4_18.
Pełny tekst źródłaStreszczenia konferencji na temat "Bender element"
Pradhan, Asheesh, i Xinbao Yu. "Bender Element Testing and Discrete Element Modeling of Shear Wave in Granular Media". W IFCEE 2015. Reston, VA: American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784479087.183.
Pełny tekst źródłaLi, Kuan, Yu Lan i Wei Lu. "Finite element design of a new piezoelectricity bender disk transducer array". W 2010 Symposium on Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA 2010). IEEE, 2010. http://dx.doi.org/10.1109/spawda.2010.5744332.
Pełny tekst źródłaZeng, Xiangwu, J. Ludwig Figueroa i Lei Fu. "Measurement of Base and Subgrade Layer Stiffness Using Bender Element Technique". W 15th Engineering Mechanics Division Conference. Reston, VA: American Society of Civil Engineers, 2003. http://dx.doi.org/10.1061/40709(257)3.
Pełny tekst źródłaStyler, M. A., i J. A. Howie. "Comparing Frequency and Time Domain Interpretations of Bender Element Shear Wave Velocities". W GeoCongress 2012. Reston, VA: American Society of Civil Engineers, 2012. http://dx.doi.org/10.1061/9780784412121.226.
Pełny tekst źródłaRAJESH, R. "An Eight Element Hydrophone Array Using DFB Fiber Laser with Bender Bar Packaging". W International Conference on Fibre Optics and Photonics. Washington, D.C.: OSA, 2016. http://dx.doi.org/10.1364/photonics.2016.th3a.52.
Pełny tekst źródłaHoyos, L. R., P. Takkabutr, A. J. Puppala i Md S. Hossain. "Dynamic Response of Unsaturated Soils Using Resonant Column and Bender Element Testing Techniques". W Geotechnical Earthquake Engineering and Soil Dynamics Congress IV. Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40975(318)47.
Pełny tekst źródłaHuang, Lin, Yong Wang, Jian Li, Wei He i Xian-qin Li. "The Effect of Different Boundary Conditions on the Result of Bender-Extender Element Test". W International Conference on Geotechnical and Earthquake Engineering 2018. Reston, VA: American Society of Civil Engineers, 2019. http://dx.doi.org/10.1061/9780784482049.041.
Pełny tekst źródłaRees, Sean, Tomasz Szczepański, Jerry Sutton i Karl Snelling. "Surface Wave Geophysics and Laboratory Bender Element Methods for use in Ground Improvement Assessment". W International Conference on Ground Improvement & Ground Control. Singapore: Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-3560-9_10-1007.
Pełny tekst źródłaYamashita, Satoshi, Tomohito Hori i Teruyuki Suzuki. "Anisotropic Stress-Strain Behavior at Small Strains of Clay by Triaxial and Bender Element Tests". W Second Japan-U.S. Workshop on Testing, Modeling, and Simulation in Geomechanics. Reston, VA: American Society of Civil Engineers, 2006. http://dx.doi.org/10.1061/40870(216)4.
Pełny tekst źródłaPineda, J. A., L. R. Hoyos i J. E. Colmenares. "Stiffness Response of Residual and Saprolitic Soils Using Resonant Column and Bender Element Testing Techniques". W GeoFlorida 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41095(365)77.
Pełny tekst źródłaRaporty organizacyjne na temat "Bender element"
Werdon, M. B., i M. J. Blessington. Analyses of historic U.S. Bureau of Mines samples for geochemical trace-element and rare-earth-element data from the VABM Bend area, Black River and Eagle quadrangles, east-central Alaska. Alaska Division of Geological & Geophysical Surveys, czerwiec 2014. http://dx.doi.org/10.14509/27299.
Pełny tekst źródłaFriedsam, H., W. Oren, R. Pitthan, R. Pushor i R. Ruland. Alignment labeling scheme for the reverse bends, instrument sections, and the final focus beam line elements and their supports. Office of Scientific and Technical Information (OSTI), styczeń 1986. http://dx.doi.org/10.2172/6396791.
Pełny tekst źródłaQamhia, Issam, i Erol Tutumluer. Evaluation of Geosynthetics Use in Pavement Foundation Layers and Their Effects on Design Methods. Illinois Center for Transportation, sierpień 2021. http://dx.doi.org/10.36501/0197-9191/21-025.
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