Mechanical Behavior of AZ31B Magnesium Alloy Sheet at Different Strain Rates and Stress States

摘要

This Magnesium (Mg) alloys have been increasingly used in the automotive industry due to their superior mechanical properties compared with other metals. While there are some obstacles in the application of Mg alloy, one of that is its complex dynamic response characteristic. Many papers have studied the tensile and compression properties of AZ3 IB Mg alloys sheet, but lack of shear test. This paper presents experimental study, including the test method and test data analysis, on the AZ31B Mg alloy sheet. Uniaxial tension tests were carried out over a wide range of strain rates from 10~(-4) to 10~3 s~(-1), which are of interest in vehicle crash CAE. At the same time uniaxial compression and shear tests at strain rates from 10~(-4) to 10~(-2) s~(-1) were also carried out. The different mechanical behavior of AZ31B Mg alloys sheet between tensile, compression and shear stress states can also be studied in this paper.