Next Article in Journal
Experimental Characterization of the Primary Stability of Acetabular Press-Fit Cups with Open-Porous Load-Bearing Structures on the Surface Layer
Previous Article in Journal
Ferrite-to-Austenite and Austenite-to-Martensite Phase Transformations in the Vicinity of a Cementite Particle: A Molecular Dynamics Approach
Open AccessArticle

Quasi-Static Loading Responses and Constitutive Modeling of Al–Si–Mg alloy

School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, China
*
Author to whom correspondence should be addressed.
Metals 2018, 8(10), 838; https://doi.org/10.3390/met8100838
Received: 7 September 2018 / Revised: 10 October 2018 / Accepted: 15 October 2018 / Published: 17 October 2018
The flow behavior of the Al–Si–Mg alloy under uniaxial compression loading was investigated at different strain rates (10−3 s−1, 10−2 s−1,10−1 s−1, 100 s−1) at a wide range of temperatures (573 K, 623 K, 673 K, 723 K, 773 K). The results showed that the peak stress increase with the strain rate and decrease with the increase of temperature. According to the measured flow stress curves, a modified Johnson-Cook (J-C) constitutive model taking strain rate effect on thermo softening into account was proposed to delineate the flow behavior. The comparisons between the measured flow curves and the predicted ones showed them to be very close and the average error is 1.65%. The added experiments were also conducted for validating the modified model, and the predicted data well agreed with the measured flow stress curves. That indicated the modified Johnson-Cook model is reliable and can accurately delineate the flow behavior of Al–Si–Mg alloy. View Full-Text
Keywords: thermo-mechanical response; strain rate effect; modified Johnson-Cook (J-C) model; Al–Si–Mg alloy thermo-mechanical response; strain rate effect; modified Johnson-Cook (J-C) model; Al–Si–Mg alloy
Show Figures

Figure 1

MDPI and ACS Style

Liang, Z.; Zhang, Q. Quasi-Static Loading Responses and Constitutive Modeling of Al–Si–Mg alloy. Metals 2018, 8, 838.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop