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Bauingenieur

Browse Volumes: Bauingenieur

Bauingenieur Volume 92 (2017) Issue 06 ISSN Online: 0005-6650

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Viet Hung Le, Frank Rackwitz, Stavros Savidis Verformungsakkumulation bei Monopilegründungen in Sand mit Lastrichtungswechseln/Accumulation of monopile deformation in sand due to change in load direction S. 263-270

„… cyclic loading. The cyclic simple shear tests were used to enhance and optimize the HCA- Model for …” „… shear laboratory tests. Again the importance of the choice of the proper soil model in deformation …” „… ° nach 5 000 Zyklen Fig. 4. Cyclic simple shear test with change of polarization of 90° after 5,000 load …”

Martin Classen, Martin Herbrand, Alexander Stark Dübelkennlinien von Verbunddübelleisten mit Stahlversagen/Shear force-slip characteristic of composite dowels with steel failure S. 237-244

„… composite dowels, so that time-consuming and cost-intensive shear tests are required for the …” „… the shear capacity of the connectors but also by the relative displacements (slip) in the composite …” „… shear force-slip behavior of the connectors, the so-called dowel characteristic. Due to the increasing …”

Johannes Berger, Patrick Huber, Jürgen Feix, Johann Kollegger Hochfrequente Ermüdungsversuche zur Schubkraftübertragung in unbewehrten Fugen/High-frequency fatigue tests on the shear strength at the unreinforced interface between concretes cast at different times S. 245-255

„… High-frequency fatigue tests on the shear strength at the unreinforced interface between concretes cast at …” „… Table 2. Interface shear stress: Test series 1 vfat,max Dvfat VK 1 und VK 3 Keine …” „… Ermüdungsversuch: Versuchsserie 2 Table 4. Interface shear stress: Test series 2 vfat,max Dvfat VK 1 0,32 N/mm …”

doi.org/10.37544/0005-6650-2017-06

VDI Wissensforum GmbH - SIMVEC – Simulation und Erprobung in der Fahrzeugentwicklung

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VDI Wissensforum GmbH (ed.)

SIMVEC – Simulation und Erprobung in der Fahrzeugentwicklung

Series: VDI-Berichte

Volume 2333 2018

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D. Dorribo Development of mechanism-based models for resistance spot weld failure simulation of multi-material advanced high strength steel sheets S. 585-606

„… type of loading test are simulated, namely normal, shear and mixed-mode tests (see Fig. 2 …” „… force-displacement curves of the shear tests of the similar 22MnB5 joints are presented in Fig. 5. An illustrative …” „… displacements are measured as compared to shear tests due to the bending of the sheets surrounding the weld …”

S. B. Istoc, H. Winner Simulationskonzept zur Vorhersage der Hitzerissbildung bei Lkw-Bremsscheiben auf dem Schwungmassenprufstand S. 571-584

„… heat crack test and offers a qualitative comparison of the cracking tendency of different brake disc …” „… Schleppbremsungen mit einem Durchriss in den Kühlkanal. Während des Tests wechselt sich eine 40-sekündige …” „… . Als Turbulenzmodell wird das Shear Stress Transport Model [10] verwendet. Die in der …”

doi.org/10.51202/9783181023334

VDI Wissensforum GmbH - Kupplungs- und Bremssysteme für mobile und stationäre Anwendungen

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VDI Wissensforum GmbH (ed.)

Kupplungs- und Bremssysteme für mobile und stationäre Anwendungen

Series: VDI-Berichte

Volume 2414 2023

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L. Pointner-Gabriel, K. Voelkel, H. Pflaum, K Stahl A Methodology for Data-driven Modeling and Prediction of the Drag Losses of Wet Clutches S. 125-154

„… measurements of the test dataset (e). VDI-Berichte Nr. 2414, 2023 137 enclosed between the shear stress curve …” „… . In Step 1, the data is generated on a suitable test rig. In Step 2, characteristic values of each …” „… and reliably by means of costly and time-consuming measurements on a suitable test rig. Alternatively …”

C. Sax, A. Stroh, R. Leister, M. Dreisbach, J. Kriegseis, C. Denda, P. Bürk Fluid-mechanical evaluation of different clutch geometries based on experimental and numerical investigations S. 109-124

„… experimental studies could quantify the local wall shear stress. Additionally, the volumetric flow topology …” „… within the investigated groove geome-tries and their local influence on the wall shear stress …” „… this work are in analogy with the experiments on an open wet clutch from Leister et al. [22]. The test …”

R. Leister, B. Frohnapfel, J. Kriegseis Die Strömung in einer offenen nasslaufenden Lamellenkupplung – The fluid flow in an open wet clutch S. 99-108

„… accurate vortex information and finely resolved wall shear stress values to be extracted. The contribution …” „… testen. Als Lamelle fand für beide Messtechniken eine Radialnutung Anwendung, mit einer Nuthöhe von 0,97 …”

doi.org/10.51202/9783181024140

VDI Wissensforum GmbH - International Conference on Gears 2017

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VDI Wissensforum GmbH (ed.)

International Conference on Gears 2017

Series: VDI-Berichte

Volume 2294 2017

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C. Brecher, C. Löpenhaus, F. Goergen, D. Mevissen Crack propagation analysis of pitting damages of high-strength material systems in gear applications S. 281-292

„… , contact fatigue strength of three test variants of different material or heat treatment is investigated …” „… depth of the fatigue zone can be explained by the time-depended change of normal and shear principal …” „… normal and shear principal stress. The combination of damage characteristics and the new evaluation of …”

B. Schlecht, K. Neikes, E. Leidich, S. Hauschild Is the mean stress effect for shafts dependent on the geometry, material or load? S. 1145-1152

„… or ultimate strength. In later days tests with mean stress equivalent to the stress amplitude were …” „… taken into account. As fatigue tests are expensive and take a lot of time, often only one or two aspects …” „… approaches. Therefore, fatigue tests with different materials, notch geometries and loads were carried out …”

T. Saito, K. Miyamoto Traction drive analysis identified with rheological friction property of traction fluid S. 1185-1190

„… taken as parameters for measuring the shear force of the traction fluid used. The four-roller test …” „… temperature were identified from the dynamic behavior analysis model for a four-roller test apparatus together …” „… glass transition from liquid to solid phase under high contact pressure conditions, and high shear …”

E. Maier, A. Ziegltrum, T. Lohner, K. Stahl Characterization of TEHL contacts of thermoplastic gears S. 1483-1496

„… twin-disk test rig for representative thermoplastic gear operating conditions. After a comparison to plain …” „… , 6]) or shear thinning (e.g. [7]) rheology. Typical examples of soft TEHL contacts are lubricated …” „… flow) over rolling friction (Poiseuille flow) and approximates the shear rate with an appropriate film …”

M. Oehler, B. Magyar, B. Sauer A new standardizable calculation method to predict the efficiency of worm gear drives S. 363-372

„… gearbox under test. The average gear friction coefficient can also be used to check the transmission for …” „… simulation model was verified with own test results. This calculation approach is the starting point of this …” „… worm gear drives of different sizes and gear ratios. In the tests, ZK-type worm gears with two …”

B. Sievers, M. Berger, J. Hermes Technical guideline for the quality determination of bronze S. 479-490

„… pitting resistance is specified for CuSn12-C-GZ. A nominal shear stress approach is used to calculate the …” „… for shear stress at tooth root FG is determined based on the shear endurance strength FlimT …” „… according to [8]. The shear endurance strength as a function of the worm wheel material can be determined …”

L. Gondecki, M. Weibring, P. Tenberge Simulation and test method for the lubricant’s influence on the wear and fatigue mechanisms on tooth flanks S. 29-40

„… Simulation and test method for the lubricant’s influence on the wear and fatigue mechanisms on …” „… calculation method for each individual lubricant. An experimental test method is introduced in which the …” „… criterion defines the product of the sliding path and the friction shear stress as the main driver for …”

T. Jurkschat, T. Lohner, K. Stahl Improved calculation method for load-dependent gear losses S. 893-904

„… at the FZG efficiency test rig and FZG Bearing power loss test rig have been carried out (Jurkschat …” „… experimental investigations at the FZG efficiency test rig. Test gears with a variation of different helix …” „… from separate measurements at the FZG bearing power loss test rig. Results of this study are used to …”

F. Concli, C. Gorla Numerical modeling of the churning power losses of gears: an innovative 3D computational tool suitable for planetary gearbox simulation S. 881-892

„… information about the correct lubrication of all the components unless with expensive tests. In the past, the …” „… simulation of a simple test case which geometry was that of a back-to-back test bench was reduced by 93.5 …” „… back-to-back test rig as shown in figure 1. Fig. 1: example of mesh generation (extrusion) In order to …”

J. Reißmann, E. Leidich Computation of the tooth root strength of Worm Wheels with a calculation program based on local stresses S. 373-394

„… 3996 [1] is based on shear stresses. Another algorithm [2] is based on von-Mises equivalent stresses …” „… (Figure 6, central column). The optimal mesh discretization were figured out by convergence tests and set …” „… out in material tests, mentioned below. Worm: steel Wormwheel rim: bronze CuSn12Ni …”

D. Ghribi, C. Peyrac, M. Octrue Shot peening of gear tooth flanks: Search for an optimal surface topography against the micropitting S. 153-162

„… micropitting and results of experimental tests (two-disk Rolling-Sliding Contact Fatigue, RSCF, test …” „… development of an interrupted test method to monitor the micropitting progression with the development of a …” „… damage initiates on surface asperity level rather than subsurface localized maximum shear stress (macro …”

A. Kubo Change of gear steel quality as function of globalization – Back ground of the development for high speed automatic hardness tester S. 41-50

„… high speed automatic hardness tester Prof. hc. Dr.-Ing. Aizoh Kubo, Research Institute for …” „… that examination. To find the quality problem of purchased steel, we develop now a new tester for …” „… some steel kinds with this tester are introduced. INTRODUCTION In my job for trouble shooting of …”

P. Garambois, E. Rigaud, J. Perret-Liaudet Robust optimization of gear macro and micro-geometries in order to minimize static transmission error and gear stiffness fluctuations S. 927-938

„… process. The optimization is performed using a genetic algorithm that tests a lot of different gears. The …” „… ) Generalized stress: bending moments (Mx,My)T , twisting moment Mxy and shear stress forces (Qx,Qy)Tooth …” „… transverse shear deformation on the bending of elastic plates. Journal of Applied Mechanics, 12 :69–76, 1945 …”

D. Krüger, E. Leidich, I. Römhild, R. Heß, H. Linke Geometry, pitting and tooth root capacity of asymmetric gears S. 751-768

„… factor KHβ and the transverse load factor KHα. The empirical factors Zε and Zβ are derived from tests …” „… with standardized symmetrical test gears. The application of these factors on gears with significantly …” „… comparison with the stress limit derived from tests with standardized test gears, where these stress limits …”

doi.org/10.51202/9783181022948

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Bauingenieur

Browse Volumes: Bauingenieur

Bauingenieur Volume 97 (2022) Issue 04 ISSN Online: 0005-6650

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Kevin Metje, Torsten Leutbecher Zur Querkraftbemessung von Biegeträgern aus stahlfaserverstärktem ultrahochfesten Beton – Teil 2: Datenbankauswertung und Überprüfung des Bemessungsansatzes/Design of ultra-high performance fibre-reinforced concrete girders subjected to shear – Part 2: database evaluation and review of design approach S. 122-130

„… and a database including 185 shear tests. The design approach is based on Eurocode 2 and …” „… load of shear test Vexp for UHPFRC-girders with shear span-to-depth ratio av/d ≥ 2 and a) I-shaped …” „… load of shear test Vexp for UHPFRC-girders with shear span-to-depth ratio av/d < 2 and I-shaped …”

Ilias D. Thanasoulas, Charis J. Gantes Analysis and Design of Steel Arches/Analyse und Bemessung von Stahlbögen S. 91-98

„… number of column tests were conducted un-der the auspices of the European Convention for Constructional …” „… studies incorporating residual stresses and geometric imperfections, calibrated against experimental tests …” „… [9]. In order to determine suitable buckling parameters of steel arches, experimental tests and …”

doi.org/10.37544/0005-6650-2022-04

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