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Mahdi Hayatrouhi - Strengthening of reinforced concrete beam-column joints to increase seismic resistance.

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Mahdi Hayatrouhi

Strengthening of reinforced concrete beam-column joints to increase seismic resistance.

Series: Berichte des Instituts für Massivbau der Universität Hannover

Volume 9 2014

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Appendix C: Installation of Specimens into the Loading Setup S. 305-307

„… Loading Setup 305 Appendix C: Installation of Specimens into the Loading Setup Since the place of …” „… Loading Setup 306 Fig. C.1: Loading setup: Proposed installation process of specimens in loading …” „… Installation of Specimens into the Loading Setup 307 Fig. C.2: Loading setup …”

Titelei/Inhaltsverzeichnis S. i-xxv

„… Appendix C: Installation of Specimens into the Loading Setup .................................. 305 Table …” „… Fig. 4.32: Retrofitted specimen BD-H1 placed in loading setup1H …” „… setup and as-built specimens (reference units) .................................................. 145 …”

Chapter 4 Experimental Program and Development S. 97-220

„… innovative retrofitting techniques. The production process of the test specimens as well as loading setup …” „… ) (b) Fig. 4.32: Retrofitted specimen BD-H1 placed in loading setup1H Chapter 4 Experimental …” „… (HMFC) and Harmonica Damper Plates (HHDP) were assembled to the specimen placed in the loading setup …”

Appendix B: Scheme and Details of Loading Setup S. 282-304

„… ) Fig. B.26: Loading setup: Designed lateral support of test specimens Appendix B Scheme and Details …” „… Appendix B Scheme and Details of Loading Setup 282 Appendix B: Scheme and Details of Loading …” „… Setup Fig. B.1: Designed loading setup Appendix B Scheme and Details of Loading …”

Chapter 1 Introduction S. 1-6

„… supplementary pictorial explanations regarding the installation of specimens into the loading setup …” „… locally upgrade of specimens. Chapter 4 presents the experimental study of the research with …” „… illustration of production process and details of test specimens including beam-column joint specimens with …”

doi.org/10.51202/9783816791782

Lars Kanzenbach - Experimentell-numerische Vorgehensweise zur Entwicklung von Probekörper-Setups für die Charakterisierung technischer Elastomere

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Lars Kanzenbach

Experimentell-numerische Vorgehensweise zur Entwicklung von Probekörper-Setups für die Charakterisierung technischer Elastomere

Series: Mechanik/Bruchmechanik

Volume 357 2021

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Titelei/Inhaltsverzeichnis S. I-XII

„… Messbereich – Gummiwerkstoffe – Gummi-Phänomenologie Keywords: Tension-/compression tests – specimen-setup …” „… account both the stability and the homogeneity characteristic. With the developed specimen-setup …” „… Tension-/compression tests, specimen-setup, specimen optimization, shear tests, shear device, homogeneous measuring …”

Literatur S. 135-144

„… . 5839–5842. Kanzenbach, L., E. Oelsch, M. Stockmann & J. Ihlemann (2018). A new specimen setup for high …” „… . Kanzenbach, L., E. Oelsch, T. Lehmann & J. Ihlemann (2019a). Dynamic testing of a specimen setup for combined …” „… . Naumann & J. Ihlemann (2016b). Specimen design for high precision tension-compression tests. PAMM 16 (1 …”

doi.org/10.51202/9783186357182

VDI Wissensforum GmbH - International Conference on Gears 2022

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2022

Series: VDI-Berichte

Volume 2389 2022

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A. Gebhard, W. Kassem, M. Oehler Cylinder-on-ring model wear tests as an input data source for the simulation of friction and wear of plastic gears S. 1133-1148

„… tribometer was refitted to accept a cylindric specimen instead of a block, resulting in a setup similar to …” „… specimen of ASTM G137 tests, see Fig. 1. Fig. 1: Schematic of the cylinder-on-ring test setup (left) and …” „… the two-disc test, albeit with a slide-to-roll ratio of 200 % (pure sliding). With this test setup …”

P. Tenberge, J. Vorgerd, L. Gondecki 2-disc tribometer for various tests on sliding/rolling contacts with tribological loads such as in tooth flank contacts S. 145-156

„… specimens are accessible for many tactile and non-contact measuring methods. For such measurements, they …” „… significantly reduces the test effort. Also, the specimens are much smaller than the real machine elements …” „… , which leads to further bigsavings in test expenses. In addition, the test specimens can be dynamically …”

I. Hong, Z. Teaford, A. Kahraman A comparison of gear tooth bending fatigue lives from single tooth bending and rotating gear tests S. 45-74

„… fixture was designed and fabricated for the testing of the RG test specimen. The setup was made to be …” „… application and service time. Fatigue testing on gear specimens has been preferred metric on which to base …” „… study, both STB and RG test methodologies are employed to test the same specimen design. Matrices of …”

B. van Wissen, M. Kanters, F. Mitsuzuka, K. Iwanaga, M. Meuwissen, A. Hasanovic Predicting static and fatigue performance of fiber reinforced plastic gears S. 1083-1098

„… stress-strain data measured at specimens with various average fiber orientations. The specimens are milled from …” „… center of the specimens, measured with a μ-CT scan, a mean-field homogenization method allows us to …” „… ) added were used, for the static tests samples without. Gear specimens The gears were injection molded …”

D. Drummer, D. Schubert, C. Herzog In situ measurement of geometric and structural influences on the operating properties of polymer gears S. 1099-1116

„… gear test rig. VDI-Berichte Nr. 2389, 2022 11013. Materials and methods 3.1. Materials and specimens …” „… specimens with different morphological properties. The main processing parameters can be seen in table 2 …” „… . Functional principle of the new in situ gear test rig The experimental setup used for the in situ deformation …”

F. Reinle, D. Mangherini, E. Morgano, A. Bongiovanni Combining improved gear efficiency and improved fatigue performance through mass finishing S. 609-620

„… , processes related to the classic finishing like polish grinding are introduced. With this new setup a higher …” „… container to see the workpieces. Fig. 1: Streamfinish process schematic setup, 3D (l.) and 2D partial cross …” „… region, 30° tangent Evaluating fatigue performance Special bending fatigue specimens designed by CRF to …”

T. Arndt, J. Klose, M. Gerstenmeyer, V. Schulze Tool wear development in gear skiving process of quenched and tempered internal gears S. 1331-1344

„… single-tooth test setup. This shows the significant influence of different cooling and lubrication methods in …” „… addition, quenched and tempered AISI 4140(Rm=1100 MPa), (42CrMo4 +QT) is used as test specimen for …” „… established analogous tool setup with a single-toothed cutting insert was used, which allows to map the tool …”

A. Eric, D. Olveda, T. Froschmeier, V. Schulze Local pitting fatigue concept with EHL simulation for case hardened gears in electrical drives S. 133-144

„… . This setup is very similar to the procedure reported by Li & Kahraman [15]. The application of the …” „… place in the transverse section of the teeth just like in spur gears. Figure 2 shows the setup of the …” „… gear contact EHL model. Fig. 2: Setup of gear contact EHL model As the contact moves along the line …”

R. Jaeger, C. Koplin, B. Schluter Lubricated polymer-steel-systems: influence of the surface and interfacial energies of frictional partners on their tribological performance S. 1223-1236

„… tribological tests on PA46 and PEEK with PEEs, TAEs, EGL and GLY were performed on PA46 and PEEK specimens …” „… tests on PA46, POM and PK with PAO, Ester, pPG and uPG, all polymer specimens were dried at 70 °C in a …” „… chamber with less than 3 mbar gas pressure for 4 days. The specimens used for tribological and hardness …”

A. Kubo, M. Nagae High-speed measurement of hardness distribution with X-ray diffraction S. 1553-1568

„… specimen (refer to TP) and the mirror polishing of the objective surface is not necessary. The measurement …” „… be decreased to 1mm/sec. for obtaining detailed data. The setup of HMM and data sampling procedure is …” „… 1557A test specimen of ca.60x60x60mm cubic block made from the central part of 260 bar of SCM420 steel …”

M. Zalfen, J. Lovenich, O. Malinowski, C. Brecher, J. Brimmers, S. Neus, S. Stark, D. Kruger Test rig concept for high power VHCF gear testing S. 485-498

„… the gearbox setup, tooth root breakage is the critical failure mode for planets in such applications …” „… initiated from the surface or subsurface, see Fig. 2. Fig. 2: Failures for specimens in VHCF area [17; 18 …” „… , the behavior of bending orbital test specimens in the range of high number of load cycles can also be …”

A. Sitzmann, T. Tobie, K. Stahl, S. Hoja, S. Schurer Deep nitriding – contact and bending strength of gears with increased nitriding hardening depth S. 875-890

„… section describes the test setup for the experimental investigations of the tooth root and flank load …” „… N/mm2Pulsator normal stress FPnin kNFailure (tooth root fracture)Passed specimen50 % Probability of …” „… or 50 million load cycles respectively were stopped and counted as passed specimens. The results for …”

H.-J. Dennig, L. Zumofen, A. Kirchheim, S. Winterberg, D. Stierli Increasing the safety against scuffing of additive manufactured gear wheels by internal cooling channels S. 1345-1364

„… , the setup of a suitable test infrastructure and the analysis of the LPBF gears tested for scuffing …” „… serial arrangements and the test setup with a test gear wheel …” „… yield strength and tensile strength of the quenched and tempered specimens were 1009–1016 MPa and …”

S. Matkovič, M. Kalin Effect of tribological properties on tooth root fatigue failure of polymer gears S. 1257-1268

„… rolling-sliding contact [5], twin-disc setup for PA6-steel [6] or acetal in unlubricated rolling-sliding contact …” „… , the oil temperature was controlled. The lower specimen was a 100Cr6 steel disc, while the upper ball …” „… . Kalacska, V. Paepegem, Modelling gear contact with twin-disc setup, Tribol. Int. 49 (2012) 1–7. [7] S.N …”

K. J. Winkler, T. Tobie, K. Stahl Influence of grinding zones on the tooth root bending strength of case carburized cylindrical gears S. 287-304

„… angle  ° 0 VDI-Berichte Nr. 2389, 2022292Fig. 2 shows the manufacturing route and experimental set-up …” „… of the different test gear variants. Fig. 2: Production route and experimental set-up of the …” „… strength of case-hardened specimens made of 16MnCr5 steel, Härterei-Technische Mitteilungen - HTM, 59 (3 …”

A. Baumann, B. Bertsche Coefficient of friction behavior of gear oils and significance for the meshing process of spur gears S. 745-762

„… function of the speed. A mini traction machine from PCS Instruments with a ball/plate measurement setup was …” „… speed. A mini traction machine from PCS Instruments with a ball/plate measurement setup was used to …” „… contact pressure of the MTM specimen is equivalent to the maximum Hertzian contact stress of a loaded gear …”

F. Lagier, A. Bischofberger, K. Bause, S. Ott Suitability of additive manufactured PEEK gears as a means of gear sampling for automotive high-speed gearboxes S. 1045-1060

„… Modeling (FDM) is being investigated. This enables the printing of test specimens in small quantities with …” „… the 3D-printed gear. [6] Research objective and test setup The aim of this investigation is to …”

doi.org/10.51202/9783181023891

VDI Wissensforum GmbH - LAND.TECHNIK AgEng 2023

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VDI Wissensforum GmbH (ed.)

LAND.TECHNIK AgEng 2023

Series: VDI-Berichte

Volume 2427 2023

Results in this title

F. M. Appich, P. M. Roth, S. Böttinger, A. Bürger, A. Diekamp Frictional characteristics of wheat straw under varying contact pressure S. 161-168

„… the test setup on an inclined plane highlighted the significant influence of the resulting surface …” „… paint was applied to the lower friction specimen, while a contrast agent was added to the upper specimen …” „… upper friction specimen. The study investigates the coefficients of friction of straw in relation to …”

J. C. Krause, N. Iqbal, M. Niemeyer, B. Thy, L. Plagge, H. Hollmeier, A. Ruckelshausen, S. Röttgermann, A. Tauber, J. Herbers, S. Menke, J. Hertzberg AI-TEST-FIELD – A Test Environment for the Automated Evaluation of Methods for Robust and Reliable Environment Perception S. 547-554

„… recurring movements of sensors and test specimens, it is recorded at which positions an obstacle was or was …” „… different field areas. A test setup consists of certain sensors which may use different modalities and …” „… a suitable sensor setup is found, influences from the environment are investigated. Therefore, test …”

doi.org/10.51202/9783181024270

VDI Wissensforum GmbH - International Conference on Gears 2023

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2023

Series: VDI-Berichte

Volume 2422 2023

Results in this title

C. M. C. G. Fernandes, J. M. A. Pinto, D. E. P. Gonçalves, A. R. Silva Reduction of root and flank temperature using a hybrid polymer-metal rack S. 1547-1562

„… specimens. The insert is made of aluminium for the hybrid case studied. The mechanical and thermal …” „… properties of the materials can be found in Table 2. Three different specimens were studied: STD – standard …” „… capabilities: application of thermal power on the gear rack flank and subject the specimen to bending. The …”

B. van Wissen, L. Pastukhov, F. Mitsuzuka, K. Iwanaga, A. Hasanovic NVH performance of thermoplastic gears: modelling and measuring S. 1389-1402

„… setup based on the gear durability setup (left) and the gear specimen including runner lay-out (right …” „… influence due to the short testing time. Gear specimensThe injection molded plastic gears were molded in a …” „… both the same geometry. VDI-Berichte Nr. 2422, 20231392Experimental setup Fig. 3: Noise measurement …”

I. Criscuolo, F. Carneiro, G. Guimarães, R. Rego, J. Mascheroni Indirect Selective Laser Sintering: Modeling and analysis of surface densification by shot peening S. 1681-1698

„… AISI 5120 DP (Coated by precipitation dissolution) 1500 40 0.1 0.08 The geometry of the specimens …” „… types of specimens were produced in separate batches. The blocks were produced with a gear …” „… : Geometry of the iSLS specimens. 2.2. Densification Through Shot Peening: Parameters and Strain Energy The …”

P. Fischmann, A. Hilligardt, V. Schulze Tooth Root Burnishing in the Kinematics of Gear Skiving S. 1829-1844

„… notched specimens, the depth effect is even further reduced with increasing hardness [13]. Compared to …” „… rolled on one side using special rollers in a specially developed experimental setup. Although an …” „… gears were manufactured through gear skiving. Further information on the setup and process can be found …”

A. Wallinger, R. Vonderschmidt, S. Vonderschmidt Lubricant Free Transmissions for the food industry – A Comparison S. 715-726

„… free - Early stage of development / unknown technology 4 Description of test specimen In the following …” „… 1,5 (ungeätzt) lubricant Rivolta F.L. PG250 5 Experiment design – setup & execution The following …” „… describes the test setup for the measurements with the plastic gears. The gear unit is measured as …”

G. Guimarães, L. Robatto, R. Rego, A. Faria, A. Borille, J. Mascheroni Surface integrity of 20MnCr5 pinion gears manufactured through laser powder bed fusion S. 1845-1858

„… the specimens’ surface at the beginning of the manufacturing chain. The heterogeneity persisted even …” „… like particles The specimens analyzed in this study were produced using the laser powder bed fusion …” „… completion of stress relief, the specimens were detached from the baseplate through conventional sawing …”

F. Reinle, D. Mangherini, A. Bongiovanni Enhancing gear performance through advanced mass finishing and DEM simulation S. 1777-1786

„… workpieces. Fig. 1: Streamfinish process schematic setup, 3-D (l.) and 2-D partial cross section (r.) The …” „… specimen designed to match the stress resulted in a 60% improvement in bending fatigue limit. Fig. 3 …” „… : Helical ring gear (l.), matching bending fatigue specimen (r.) Helical gears can achieve a highly …”

C. Herzog, D. Drummer Influence of the injection molding process on the tooth deflection of plastic gears during operation S. 1435-1448

„… , Tsukamoto and Shi [8]. The test setup evaluates the angular displacement of the steel and plastic gear under …” „… occurs in the dedendum region of the plastic gear. Since the test setup does not reproduce the …” „… less differences between the different specimens, since the runout mainly depends on the positioning of …”

B. Černe, N. Vukašinović, D. Zorko In-situ experimental methods for measuring tooth meshing displacements and wear during polymer gear tests using a high-speed camera with microscopy optics S. 1563-1580

„… measured. While this setup provides enough data to characterize gear durability (i.e., root/flank fatigue …” „… enhance the camera setup, a micro-optical InfiniTube system was utilized, complemented by a Mitutoyo 2x …” „… aforementioned setup, clear and high-resolution recordings of the entire gear meshing process were obtained for …”

T. König, L. Cadau, L. Steidle, M. Kley, D. Cansu Güney, J. Albrecht, K. Weber A concept for comparison of new and aged lubricants in transmissions of electric vehicles and a method of oil aging on a test rig S. 1195-1206

„… these are small, as expected from a professional oil. In addition, a test rig setup with a specified …” „… implement carrier and delivers a maximum power of 8 kW, is used as a test specimen. Electric motors are …”

doi.org/10.51202/9783181024225

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