Next Article in Journal
Effect of Phenolic Resin on Micropores Development in Carbon Foam with High Performance
Previous Article in Journal
Synthesis and Luminescence of Optical Memory Active Tetramethylammonium Cyanocuprate(I) 3D Networks
Previous Article in Special Issue
Densification Mechanism of Soft Magnetic Composites Using Ultrasonic Compaction for Motors in EV Platforms
Article Menu

Export Article

Open AccessArticle
Materials 2019, 12(8), 1212; https://doi.org/10.3390/ma12081212

Thermo–Mechanical Behavior and Constitutive Modeling of In Situ TiB2/7050 Al Metal Matrix Composites Over Wide Temperature and Strain Rate Ranges

1
School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
2
School of Aeronautics and Astronautics, Sichuan University, Chengdu 610065, China
*
Author to whom correspondence should be addressed.
Received: 5 March 2019 / Revised: 8 April 2019 / Accepted: 9 April 2019 / Published: 13 April 2019
(This article belongs to the Special Issue Mechanical and Physical Properties of Metallic Composites)
  |  
PDF [4154 KB, uploaded 13 April 2019]
  |  

Abstract

The thermo–mechanical behavior of in situ TiB2/7050 Al metal matrix composites is investigated by quasi-static and Split Hopkinson Pressure Bar compression tests over a wide range of temperature (20~30 °C) and strain rate (0.001~5000 s−1). Johnson–Cook and Khan–Liu constitutive models determined from curve fitting and constrained optimization are used to predict the flow stress during deformation. In addition, another Johnson–Cook model calculated from an orthogonal cutting experiment and finite element simulation is also compared in this study. The prediction capability of these models is compared in terms of correlation coefficient and average absolute error. Due to the assumptions in orthogonal cutting theory, the determined Johnson–Cook model from cutting cannot describe the material deformation behavior accurately. The results also show that the Khan–Liu model has better performance in characterizing the material’s thermo–mechanical behavior. View Full-Text
Keywords: constitutive model; flow stress; metal matrix composites; TiB2 particle constitutive model; flow stress; metal matrix composites; TiB2 particle
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Lin, K.; Wang, W.; Jiang, R.; Xiong, Y.; Shan, C. Thermo–Mechanical Behavior and Constitutive Modeling of In Situ TiB2/7050 Al Metal Matrix Composites Over Wide Temperature and Strain Rate Ranges. Materials 2019, 12, 1212.

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.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top