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Deployable Tensegrity Structures for Space Applications
www-civ.eng.cam.ac.uk/dsl/publications/TibertDocThesis.pdf30 Jul 2002: A physicalmodel is built to analyse the feasibility of the concept and to test various deploy-ment schemes. ... A physicalmodel is built to analyse the feasibility of the concept and to test various deploymentschemes. -
CUED Bridge Research
www-civ.eng.cam.ac.uk/brg/brg.htm27 Sep 2002: This involves looking at the effect of uncertainty in non-destructive test methods on the decisions made with relation tobridge safety and also on bridge maintenance and repair actions. -
CUED home page - W Huang: actuator.html
www-civ.eng.cam.ac.uk/dsl/sma/actuator.html21 Jul 1998: Several tests were carried out on this one-way actuator, both in the one-disk and three disk configurations. ... Working torques used in the test varied from -0.2 Nm to 0.62 Nm. -
CRTS Reflectors
www-civ.eng.cam.ac.uk/dsl/research/af/gcs.html25 May 2001: Every space structure must undergo an extensive ground validation test program to ensure in-orbit reliability and performance in space. ... In order to obtain reliable predictions for the behaviour of a structure in space, it is therefore necessary to -
Tyge Schioler, University of Cambridge
www-civ.eng.cam.ac.uk/dsl/Schioler/research/array.html2 Feb 2005: An analysis of the deployment of the array was done using ProMechanica and compared to video footage taken of deployment tests. -
CUED home page - W Huang: behaviour.html
www-civ.eng.cam.ac.uk/dsl/research/ki206/bistable.html6 Nov 2007: Experiments, including Tension, bending and torsion tests are performed to characterise the behaviour of PP/Glass laminated composite. -
New Document
www-civ.eng.cam.ac.uk/geotech_new/research/environment/pollution_migration/photos.htm14 Aug 2001: Video image from centrifuge test of DNAPL. migration in sloping sand layers. ... test of LNAPL migration in sloping sand layers. Contours of LNAPL concentration. -
Publications / Presentations
www-civ.eng.cam.ac.uk/geotech_new/people/lynch/pubrl.html7 Mar 2002: Environmental Geotechnics. 29. M.C Barbosa, R J Lynch,. and J.D McKinley, "Migration of aqueous acetone and potassium chloride through kaolin: minidrum centrifuge test CBLC1", Cambridge University Engineering Department Technical ... imaging techniques -
Welcome to the Cambridge Geotechnical Group
www-civ.eng.cam.ac.uk/geotech_new/research/environment/pollution_remediation/text.htm27 Jun 2008: Future tests will address the effect of rate limited mass transfer from NAPL phase to vapour phase. ... The effect of surfactant delivery method on the efficiency of surfactant enhanced dissolution remediation is investigated from batch scale to -
Welcome to the Cambridge Geotechnical Group
www-civ.eng.cam.ac.uk/geotech_new/research/earthquakes/boundary/text.html27 Jun 2008: At present, all earthquake tests carried out at Cambridge use one of two "equivalent shear beam" (ESB) model containers of the latter type. -
CUED home page - T. Schioler
www-civ.eng.cam.ac.uk/dsl/ts229webpage/Dimples/Dimples.html10 Feb 2003: For these tests, the strip was modelled in ABAQUS. The dimples were induced by applying compressive prestress in the strip at the location of the dimples. -
DVIWindo paper_IUTAM.dvi
www-civ.eng.cam.ac.uk/dsl/publications/bistabletubes.pdf19 Oct 1999: a) Tension test. 0 0.01 0.02 0.030. 5. 10. 15. 20. ... 25. x (1/mm). Mx. per. unit. wid. th (. kN). (b) Bending test. -
Tape Spring Large Deployable Antenna
www-civ.eng.cam.ac.uk/dsl/publications/AIAA-2006-1601-386.pdf11 May 2006: TOP SIDE. Figure 11. Test piece drawing (dimensions in mm). 7 of 12. ... First test-piece (a) hung for display (b) showing connectors at the back. -
ABD Matrix of Single-Ply Triaxial Weave Fabric Composites A.B.H. ...
www-civ.eng.cam.ac.uk/dsl/publications/ABD%20matrix.pdf5 Apr 2007: American Institute of Aeronautics and Astronautics. V. Compression Tests. Compression tests on thin composites are notoriously difficult, as the failure mode of interest is fibremicrobuckling but other test-dependent failure modes ... Instron cross head. -
Implementation and Validation of Schapery-Rand Anisotropic…
www-civ.eng.cam.ac.uk/dsl/publications/paper.pdf18 May 2007: (10). V. Verification Test Cases. V.A. Experimental Validation of Viscoelastic Subroutine. ... The structure was inflated five times to a very small differential pressure before the test series started.Additionally, two tests were carried out -
D:\Papers\Folding of composites\Paper.dvi
www-civ.eng.cam.ac.uk/dsl/publications/Folding_of_composites_Paper.pdf6 May 2004: Bending Tests. The aim of the bending test is to determine the smallest radius of curvature that a particularspecimen will survive without failing. ... When this happens, the test has to be repeated with a shorter specimen. -
D:CURRENT_WORKTSR HINGEPAPER.DVI
www-civ.eng.cam.ac.uk/dsl/publications/TSR_hinge.pdf21 Jan 2002: A summary of allthe test results and analytical predictions is given in Table 1. ... The test results for the overall stiffness of thehinge in each component direction can be seen in Figure 7. -
D:\Current_work\Stiffened Springback ESTEC\paper.dvi
www-civ.eng.cam.ac.uk/dsl/publications/springback_paper.pdf27 Aug 2002: 2.5. 3. 3.5. 4. 4.5. FE simulation. Displacement (mm). For. ce (. N). Test 1. Test 2. Figure 8: Comparison of two tests on Config-uration A dish with ... Test 2. Figure 9: Comparison of two tests on Config-uration B dish with FE analysis. -
NEW CONCEPTS FOR SPACECRAFT ANTENNAS AND RADAR STRUCTURESBASED ON ...
www-civ.eng.cam.ac.uk/dsl/publications/New%20concepts.pdf17 Feb 2006: Displacement (mm). Fo. rce. (N. ). Test. Abaqus. Figure 12: Response to horizontal tip loads. ... Displacement (mm). Fo. rce. (N. ). Test. Abaqus. 6. Figure 13: Response to vertical tip loads. -
D:CURRENT_WORKMEMBRANE VIBRATION IN AIRSDM PAPERSDM_PAPER.DVI
www-civ.eng.cam.ac.uk/dsl/publications/AIAA2002-1368.pdf18 Feb 2002: Theexperimental results presented in this reference are avery valuable benchmark against which to test new so-lutions. ... Comparison with Sewall’s Experiment. The third test case was based on one of the tests re-ported in Ref. -
Thermo-Elastic Behaviour of Single Ply Triaxial Woven Fabric…
www-civ.eng.cam.ac.uk/dsl/publications/AIAA-2006-1899-892.pdf11 May 2006: To establish some facts about thebehaviour of TWF, Section III shows the results of some representative tests on flat, rectangular plates andon narrow strips. ... The specimens were clamped to a rigid support at one end and were held parallel and close -
Enginuity July 2003
www-civ.eng.cam.ac.uk/dsl/enginuity.pdf10 Sep 2003: We allknow that engineers should have a knowledgeof economics, but Phillips made an enormouscontribution and showed that economists couldlearn much from engineering! -
E:CURRENT_WORKCRTS TECHNOLOGYREPORT.DVI
www-civ.eng.cam.ac.uk/dsl/publications/TR195.pdf5 Apr 2001: Deployment. tests carried out on this structure, with two different packaging schemes have confirmed that. ... only for a limited set of test cases it was possible to achieve full convergence. -
K:PAPERSSPRINGBACK DESIGNPAPERSDM-PAPER.DVI
www-civ.eng.cam.ac.uk/dsl/publications/AIAA2002-1498.pdf18 Feb 2002: 2.5. 3. 3.5. 4. 4.5. FE simulation. Displacement (mm). For. ce (. N). Test 1. Test 2. Fig. 13 Comparison of two tests on ConfigurationA dish with FE analysis. ... Test 2. Fig. 14 Comparison of two tests on ConfigurationB dish with FE analysis. -
March 12, 2003 11:8 Proceedings of OMAE’0322nd International…
www-civ.eng.cam.ac.uk/dsl/publications/OMAE2003-37465.pdf14 Mar 2003: Fi-nally, test solutions obtained for various cable configurations willbe compared to that of time domain and conclusions drawn. ... 6 Copyright c 2003 by ASME. Test Data Units Cable 6 Cable 7. -
Proceedings of the 5th International Conference onComputation of…
www-civ.eng.cam.ac.uk/dsl/publications/Gan_Pellegrino_abst.pdf2 Feb 2006: the existence of intermediate configurations where the path bifurcates. In this paper, we aim to developa simple and yet efficient analysis scheme that enables a designer to test for the existence -
April 30, 2003 18:33 Proceedings of OMAE’0322nd International…
www-civ.eng.cam.ac.uk/dsl/ppao2/documents/OMAE2003-37465.pdf22 May 2003: Fi-nally, test solutions obtained for various cable configurations willbe compared to that of time domain and conclusions drawn. ... 6 Copyright c 2003 by ASME. Test Data Units Cable 6 Cable 7. -
D:\Papers\Rigid Deployable Array TR\report.dvi
www-civ.eng.cam.ac.uk/dsl/publications/TR214.pdf7 Jul 2004: The measurements from two nominally identical tests, both beginning with the rotation set. ... Table 3.1: Parameters for Schultheiss (2003) deployment test. Root Hinge Panel-Panel Hinge. -
D:\Current_work\CRTS Reflectors\paper.dvi
www-civ.eng.cam.ac.uk/dsl/publications/CRTS_paper.pdf27 Aug 2002: This was probably due to the damage mentioned above. This test confirmed a conclusion already reached in [8], that an advantage of this packaging scheme is that themembrane provides a useful ... The expected root-mean-square surface error ofthe -
D:\Current_work\Deployable_Reflector_Concept_SDM\Paper_SDM.dvi
www-civ.eng.cam.ac.uk/dsl/publications/Reflector_concept_Paper.pdf29 Mar 2004: The tests were done with a cross-head speed of5 mm/min, and were recorded with a Sony DCR-PC110E digital video camera. ... Displacement (mm). Fo. rce. (N. ). Test. Abaqus. 6. Fig. 17 Response to vertical tip loads. -
D:\Papers\Optimization cover plates\cover-plates-paper.dvi
www-civ.eng.cam.ac.uk/dsl/publications/cover-plates-paper.pdf10 Jan 2004: differences. A series of test cases are presented, whose results agree with previously. ... plates. An initial example is investigated to test the optimization code, written in Matlab. -
D:\Papers\Low-cost hinge report\report.dvi
www-civ.eng.cam.ac.uk/dsl/publications/report.pdf12 Jul 2002: To cross-head. To baseof Instron. Figure 5.2: Kxx test set-up. Prediction of Rolamite Stiffness. ... ess. N/m. m2. E=13200. Figure 5.10: Stiffness test on coated wire used in hinge. -
Design & Manufacture of Stiffened Spring-Back Reflector…
www-civ.eng.cam.ac.uk/dsl/publications/AIAA-2005-2048.pdf17 May 2005: Packaging. Displacement controlled static packaging tests werecarried out vertically in an INSTRON testing machine. ... Fig. 14 Localization of deformation in the verticalpackaging test. The finite element simulation results for Config VIII– -
Viscoelastic Behaviour of Pumpkin Balloons T. Gerngross, Y. Xu ...
www-civ.eng.cam.ac.uk/dsl/publications/viscoelastic%20behaviour%20of%20pumpkin%20balloons.pdf17 Apr 2007: A n m. 1.82 104 1.63 -0.925. 3.2 Shear Test Data Option. ... Another possibility is to use the viscoelastic command in conjunctionwith shear test data, in order to generate a viscoelastic model based onexperimental data from either creep or relaxation -
Modelling of Anisotropic Viscoelastic Behaviour in Super-Pressure…
www-civ.eng.cam.ac.uk/dsl/publications/Anisotropic%20viscoelastic%20behaviour.pdf10 Apr 2007: In the case of a uniaxial test in the machine direction the effective stress reduces to σ̄ef f = σ1.Similarly A22 can be found from uniaxial tests in the transverse direction. ... 1Cathey, H.M. Test flights of the NASA ultra-long duration balloon. -
D:\Papers\Bistable prestressed shells\Paper.dvi
www-civ.eng.cam.ac.uk/dsl/publications/Kebadze-Guest-Pellegrino_revised.pdf17 Feb 2004: contour plot. Figure 18 shows this plot for experimental test case 3, where the. ... Test case 1/κ2x 1/κ3x 1/κ5y 1/κ3x′. (mm) (mm) (mm) (mm). 1Test. -
E:CURRENT_WORKCRTS DEMONSTRATORREPORT.DVI
www-civ.eng.cam.ac.uk/dsl/publications/CRTS2001.pdf21 Mar 2001: 5 Packaging and Deployment Tests 345.1 Zig-Zag Folding. 365.2 Wrapping. 375.3 Folding Machine. ... Figure 4.7: Hub connection between hub and membrane. Chapter 5. Packaging and Deployment Tests. -
D:\Papers\Vibration wrinkled membranes SDM\SDM_Paper_2003.dvi
www-civ.eng.cam.ac.uk/dsl/publications/Vibration_wrinkled_membranes_SDM.pdf14 Feb 2003: Twotypes of vibration tests were carried out: (i) a linearidentification test using slow sine sweep and constantsine excitation, and (ii) a nonlinear identification testusing slow sine sweep excitation. ... A Polytec PSV300scanning laser vibrometer was -
Welcome to the Cambridge Geotechnical Group
www-civ.eng.cam.ac.uk/geotech_new/research/environment/pollution_migration/text.htm27 Jun 2008: Centrifuge tests, simulating the one-dimensional consolidation of, and contaminant migration from, a mineral waste site were conducted and a two dimensional finite element program has been developed to simulate the -
E:CURRENT_WORKSPRING-BACK REFLECTORPAPER.DVI
www-civ.eng.cam.ac.uk/dsl/publications/springback.pdf27 Mar 2000: At the time of writing, tests havebeen carried out only on a 1 mmthick dish with a skirt 43 mm wide, loaded at 90 from the cuts. ... Thescatter in the displacements measured belowP = 8 N suggests that —despite the use of steelguides— there is still -
report1.dvi
www-civ.eng.cam.ac.uk/dsl/publications/TR170.pdf21 Mar 2001: 293.10 Unstressed rib shape. 31. 4.1 Schematic top view of test article. ... 404.9 Schematic layout of tension test on membrane strip. 434.10 Tension tests on membrane strips. -
D:CURRENT_WORKWRINKLES COMPUTATIONSDM_2002_PAPERSDM-PAPER.DVI
www-civ.eng.cam.ac.uk/dsl/publications/AIAA2002-1369.pdf22 Mar 2002: thickness of the membrane. Values between 1% and100% of the thickness have been used, considering dif-ferent imperfection magnitudes to test the sensitivityof the predicted response. ... Note that all of these modes closely resemble theexpected wrinkled -
Self Locking Rolling Hinges
www-civ.eng.cam.ac.uk/dsl/presentations/SelfLockingRollingHinges.ppt5 Jul 2001: Extensional Stiffness of Tape-Spring. Dead band caused by play in test set-up – now fixed although no results. ... Redesign of hinge based on data. New automated set-up to be used to obtain peak moment and test hinges of different sizes. -
Wrinkled membranesPart I: experiments
www-civ.eng.cam.ac.uk/dsl/publications/jomms-v1-n1-p02-p.pdf23 Feb 2006: All test results presented in this section were obtained on 380 mm widemembranes with a height, between the supports, of 128 mm. ... Laser scanning frame. 3.2. Shear test apparatus. 3.3. Square membrane apparatus. -
C:\Documents and Settings\Sergio\My Documents\Current_work\CFRP tape…
www-civ.eng.cam.ac.uk/dsl/publications/CFRP_tape_springs_Paper.pdf9 Apr 2004: Yee and Pellegrino [3] have shown that these lami-nates are able to survive larger bending strains thanthe ultimate failure strains that are measured fromstandard coupon tests in pure tension or ... The most direct approach is to model these lami-nates -
C:\Documents and Settings\Administrator\My…
www-civ.eng.cam.ac.uk/dsl/publications/Reflector2002.pdf14 May 2002: This test confirmed a conclusion already reached bySeffen et al. (2000), that an advantage of this packagingscheme is that the membrane provides a useful couplingbetween the motion of the ribs. -
E:/Diplomarbeit/Latex/Thesis.dvi
www-civ.eng.cam.ac.uk/dsl/publications/Schultheiss_Diploma_paper.pdf12 Nov 2003: These systems can host test structures ofalmost unlimited size even when motion exists. ... disadvantage.However, the range of possible dimensions of test articles is almost unlimited. -
E:CURRENT_WORKBI-STABLE_SHELLS_SDMPAPER_SDM.DVI
www-civ.eng.cam.ac.uk/dsl/publications/bistable.pdf8 Feb 2000: validated against experimental data from a ten-sion test and a bending test on flat plates. ... b)(a). Figure 6: Tension and bending tests on composite plates. The tension test, Fig. -
University of Cambridge Department of Engineering Vibration of…
www-civ.eng.cam.ac.uk/dsl/publications/KukaMPhil.pdf25 Sep 2000: 5.1 Introduction. 43. 5.2 Experimental Set-up. 45. 5.2.1 Test Specimen. 45. ... 40. 5.1 Membrane test model. 46. 5.2 Schematic diagram of experimental set-up for impulse excitation.
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