Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Florian Gutknecht"'
Background: Many metals exhibit a stress overshoot, the so-called cross-hardening when subjected to a specific strain-path change. Existing tests for sheet metals are limited to an equivalent prestrain of 0.2 and show varying levels of cross-hardenin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12809366bf3d1abae02bc249ebee1df4
http://hdl.handle.net/2003/40949
http://hdl.handle.net/2003/40949
Publikováno v:
Procedia Manufacturing. 47:623-628
Geared components can be manufactured from sheet metals by sheet-bulk metal forming. One relevant load case in service are overload events, which might induce elevated strain rates. To determine the characteristic hardening and fracture behavior, spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff06be71333d3cbdf85730f919104ce2
https://doi.org/10.1016/j.promfg.2020.04.191
https://doi.org/10.1016/j.promfg.2020.04.191
Autor:
Markus Stennei, Till Clausmeyer, Florian Gutknecht, Deniz Kaya, Francisco Tadeu, Manfred Stiglmair, Hamad ul Hassan
Publikováno v:
ESAFORM 2021.
The manufacturing of oval tubes for automotive components from sheets consists of several steps, from the flat sheet to a tube with expanded ends. It involves roll-bending of tubes, welding and several expansion processes with segmented tools. Formin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab2a2a730924a521deecc023bd934af6
https://doi.org/10.25518/esaform21.1640
https://doi.org/10.25518/esaform21.1640
Autor:
Till Clausmeyer, A. Erman Tekkaya, Gregory Gerstein, Kerim Isik, Florian Nürnberger, Hans Jürgen Maier, Florian Gutknecht
Publikováno v:
Lecture Notes in Production Engineering ISBN: 9783030619015
Sheet-bulk forming processes are applied to manufacture complex components with intricate shape elements or with large variations in wall thickness from sheet metals. Accumulated plastic strains achieved in sheet-bulk metal forming are substantially
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6f5a46961b650379ed3c65a8210928f
https://doi.org/10.1007/978-3-030-61902-2_17
https://doi.org/10.1007/978-3-030-61902-2_17
Publikováno v:
Wear. :17-28
Shear-cutting is one of the most important manufacturing processes involving sheet metal. The local pressure on the tools as well as the sliding speed between tools and work piece are much larger in shear cutting than in typical forming processes suc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::475479962601fb548b4ee6ec451a134f
https://doi.org/10.1016/j.wear.2017.05.019
https://doi.org/10.1016/j.wear.2017.05.019
Autor:
Florian Gutknecht, Frank Steinbach, Tobias Hammer, A. Erman Tekkaya, Till Clausmeyer, Wolfram Volk
Publikováno v:
Procedia Structural Integrity. 2:1700-1707
Shear cutting is still the most preferred process in industry for separation of sheets. An enhanced fully-coupled Lemaitre model is applied for the description of the material behaviour. The local damage model considers the influence of shear and com
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bb2f0275373bbe557b7a9f733979c44
Publikováno v:
Engineering Fracture Mechanics. 147:373-387
The increasing interest in modelling local deformations and damage evolution within materials with complex microstructures leads to an increasing demand for efficient numerical methods. A method designed to study damage evolution within the microstru
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3503aa3c94685d6b8f63a8c678aadd1b
https://doi.org/10.1016/j.engfracmech.2015.06.030
https://doi.org/10.1016/j.engfracmech.2015.06.030
Publikováno v:
IOP Conference Series: Materials Science and Engineering 418 (2018), Nr. 1
For many metals, a transient variation of the yield stress can be observed when changing the orientation of a load-path. Such behavior affects the manufacturing process itself, e.g. by increasing forming forces, altered material properties or springb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d80568bb424644b8c71f5e553e2d8dbb
https://www.repo.uni-hannover.de/handle/123456789/4292
https://www.repo.uni-hannover.de/handle/123456789/4292
Autor:
Florian Gutknecht, Hans Jürgen Maier, Arkadii Briukhanov, Natalia Volchok, Gregory Gerstein, Florian Nürnberger, Till Clausmeyer, A. Erman Tekkaya
Publikováno v:
Procedia Manufacturing 15 (2018)
Several methods for the determination of integral damage in sheet metal are reviewed and investigated at the example of the ferritic steel DC04. A novel method to determine damage in cylindrical rings is proposed. Such a method is useful for the meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3331c912f682007b6c6c4797e2c937d3
https://www.repo.uni-hannover.de/handle/123456789/5042
https://www.repo.uni-hannover.de/handle/123456789/5042
Publikováno v:
The Minerals, Metals & Materials Series ISBN: 9783319514925
In sheet-bulk metal forming processes the hardening behavior of the material depends on the sequence of deformation steps and the type of deformation. Loading path changes induce transient hardening phenomena. These phenomena are linked to the format
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c53986b645d83755e5e64066c563bb3c
https://doi.org/10.1007/978-3-319-51493-2_20
https://doi.org/10.1007/978-3-319-51493-2_20