Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Marcel Wicke"'
Autor:
Fatih Buelbuel, Angelika Brueckner-Foit, Marcel Wicke, Martina Zimmermann, Tina Kirsten, Hans-Juergen Christ
Publikováno v:
International Journal of Fatigue. 119:102-111
The crack extension behavior of long cracks in the near-threshold regime is analyzed at R = 0.1 using flat dog-bone specimens of a commercial aluminum alloy in peak-aged and overaged condition. Once a pre-crack had been introduced by cyclic compressi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42d5b7db5e779c81243f2d5d5ce89374
https://doi.org/10.1016/j.ijfatigue.2018.08.024
https://doi.org/10.1016/j.ijfatigue.2018.08.024
Publikováno v:
International Journal of Fatigue. 116:562-571
The effect of shrinkage pores and gas pores on the fatigue process of a secondary Al-Si-Cu-Fe alloy was analyzed by micro-computed tomography and scanning electron microscopy. Repeated CT-scans were performed in order to study the damage accumulation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9237f09011af8172c204b146bd583075
https://doi.org/10.1016/j.ijfatigue.2018.07.012
https://doi.org/10.1016/j.ijfatigue.2018.07.012
Autor:
Fatih Bülbül, Marcel Wicke, Angelika Brückner-Foit, Tina Kirsten, Martina Zimmermann, Hans-Juergen Christ
Publikováno v:
Procedia Structural Integrity. 13:590-595
In the regime of Very High Cycle Fatigue (VHCF), it appears questionable whether all the well-known stages of fatigue crack propagation occur. Deviations must be expected through the very small dimension of the cyclic plastic zone ahead of the crack
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cc531f2295c283b3444b778ca8dffc3
https://doi.org/10.1016/j.prostr.2018.12.097
https://doi.org/10.1016/j.prostr.2018.12.097
Publikováno v:
International Journal of Fatigue. 103:363-370
Specimens of an Al-Cu-Si alloy were manufactured using die casting without additional machining. These specimens contained various kinds of natural defects were subjected to fatigue loading. The role of these defects was analyzed using fractography,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d93ff83881299ca64dd19ef7d31675b
https://doi.org/10.1016/j.ijfatigue.2017.06.020
https://doi.org/10.1016/j.ijfatigue.2017.06.020
Autor:
A. Geisert, Martin Fehlbier, I. Bacaicoa, F. Zeismann, M. Luetje, Marcel Wicke, Angelika Brueckner-Foit
Publikováno v:
Engineering Fracture Mechanics. 183:159-169
The casting defects from a Fe-rich Al-Si-Cu alloy were characterized by micro tomography and Finite Element Analysis. The specimens were analyzed in a high resolution computed-tomography scan and the 3D geometry of the casting defects were segmented
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7ddf8f99ee6514094bcfd0022880e10
https://doi.org/10.1016/j.engfracmech.2017.03.015
https://doi.org/10.1016/j.engfracmech.2017.03.015
Autor:
Fatih Buelbuel, Marcel Wicke, Hans-Juergen Christ, Tina Kirsten, Martina Zimmermann, Angelika Brueckner-Foit
Publikováno v:
Procedia Structural Integrity. 7:235-241
Short cracks initiated from pre-existing flaws are known to propagate in an intermittent way below threshold as the crack tip field interacts with the microstructure. If the stress amplitude is very low, similar effects as observed for short cracks m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e854aea937a3febc6d9c42ab7f0740b8
https://doi.org/10.1016/j.prostr.2017.11.083
https://doi.org/10.1016/j.prostr.2017.11.083
Autor:
Marcel Wicke, Angelika Brueckner-Foit
Publikováno v:
MATEC Web of Conferences, Vol 300, p 11004 (2019)
Carefully performed experiments with long cracks in the near-threshold regime have shown that the crack tip field of these cracks significantly deviate from the expected mode-I butterfly-shaped ones and resemble strongly to mixed-mode crack tip field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86f7a54e01f019c4ffc2ba7ee921b77e
https://www.matec-conferences.org/articles/matecconf/pdf/2019/49/matecconf_icmff1218_11004.pdf
https://www.matec-conferences.org/articles/matecconf/pdf/2019/49/matecconf_icmff1218_11004.pdf
Autor:
M. Kuczyk, Marcel Wicke, Hans-Juergen Christ, Fatih Bülbül, Tina Kirsten, Angelika Brückner-Foit, Martina Zimmermann
Publikováno v:
Structural Integrity ISBN: 9783030139797
In the present paper the aluminum alloys EN AW-6082 (peak-aged and overaged) and EN AW-5083 (solution annealed) were investigated regarding the long fatigue crack growth behavior in the range of very low amplitudes and therefore very high number of l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61cfdbcee7e038937bf60b74eb2ddaed
https://doi.org/10.1007/978-3-030-13980-3_39
https://doi.org/10.1007/978-3-030-13980-3_39
Influence of rolling texture on near-threshold crack extension behavior in aluminum alloy EN AW-6082
Autor:
Angelika Brückner-Foit, Hans-Jürgen Christ, Martina Zimmermann, Tina Kirsten, Fatih Bülbül, Marcel Wicke
The near-threshold crack extension mechanisms of long cracks in a commercial aluminum alloy in peak-aged and overaged condition were evaluated at a stress ratio of R = −1. Tests were performed both in a conventional resonant testing machine, using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91eefaa9b57d78bb56097d09f8e514b5
https://publica.fraunhofer.de/handle/publica/257332
https://publica.fraunhofer.de/handle/publica/257332
Publikováno v:
Procedia Structural Integrity. 2:2643-2649
An accurate methodology has been developed to identify local stress concentration on the contour of casting pores in high Fe-content Al-Si-Cu alloys. It relies on the 3D reconstruction of the pore morphology by micro-computed tomography (μ-CT), whic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7fc068cd3f2bb516764a96f5f0bb9f39