Mechanical characterization of as-cast AA7075/6060 and CuSn6/Cu99.5 compounds using an experimental and numerical push-out test
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Mechanical characterization of as-cast AA7075/6060 and CuSn6/Cu99.5 compounds using an experimental and numerical push-out test. / Greß, Thomas; Stahl, Jens; Mittler, Tim et al.
In: Materials Science & Engineering A, Vol. 751, 28.03.2019, p. 214-225.Research output: Journal contributions › Journal articles › Research › peer-review
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TY - JOUR
T1 - Mechanical characterization of as-cast AA7075/6060 and CuSn6/Cu99.5 compounds using an experimental and numerical push-out test
AU - Greß, Thomas
AU - Stahl, Jens
AU - Mittler, Tim
AU - Spano, Lukas
AU - Chen, Hui
AU - Ben Khalifa, Noomane
AU - Volk, Wolfram
PY - 2019/3/28
Y1 - 2019/3/28
N2 - The present paper describes an experimental method and innovative numerical approach in the mechanical testing of rotationally symmetric, as-cast bilayer compounds using a push-out test. Specimens consisting of AA7075/6060 and CuSn6/Cu99.5 were fabricated by static and semi-continuous compound casting, respectively. Optical and mechanical testing methods showed a cohesive bonding character and a negligibly small transition zone between the joining partners. The shear strength was investigated by using an experimental push-out test. The experiments were reviewed by means of a finite element analysis. Therefore, Johnson-Cock failure parameters were determined for each casting material. Subsequently, a multi-sectional numerical model was built up to simulate the mechanical behavior of an as-cast bimetal sample during push-out testing. Lastly, a numerical parameter study yielded a strong dependency between optimized loads at the interface and the ratio of die clearance and sample thickness as well as the interface position.
AB - The present paper describes an experimental method and innovative numerical approach in the mechanical testing of rotationally symmetric, as-cast bilayer compounds using a push-out test. Specimens consisting of AA7075/6060 and CuSn6/Cu99.5 were fabricated by static and semi-continuous compound casting, respectively. Optical and mechanical testing methods showed a cohesive bonding character and a negligibly small transition zone between the joining partners. The shear strength was investigated by using an experimental push-out test. The experiments were reviewed by means of a finite element analysis. Therefore, Johnson-Cock failure parameters were determined for each casting material. Subsequently, a multi-sectional numerical model was built up to simulate the mechanical behavior of an as-cast bimetal sample during push-out testing. Lastly, a numerical parameter study yielded a strong dependency between optimized loads at the interface and the ratio of die clearance and sample thickness as well as the interface position.
KW - Engineering
KW - Bimetal testing
KW - Cohesion
KW - Compound casting
KW - Hybride finite element simulation
KW - Johnson-Cook
KW - Push-out test
UR - http://www.scopus.com/inward/record.url?scp=85062145793&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2019.02.080
DO - 10.1016/j.msea.2019.02.080
M3 - Journal articles
VL - 751
SP - 214
EP - 225
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
SN - 0921-5093
ER -