PLATE COMPRESSIVE STRENGTH OF FS-1h MAGNESIUM-ALLOY SHEET AND A MAXIMUM-STRENGTH FORMULA FOR MAGNESIUM-ALLOY AND ALUMINUM-ALLOY FORMED SECTIONS

摘要

The plate compressive strength of FS-lh magnesium-alloy sheet was determined from local-instability tests of formed Z-section columns. The critical compressive stress was found to correlate well with the compressive stress-strain curve for the material. The curves of average stress at maximum load plotted against calculated elastic critical strain resulted in a family of curves similar to previous results for aluminumalloy sheet.nAn empirical formula was developed for calculating the average stress at maximum load for formed Z-sections and channel sections of FS-lh magnesium-alloy sheet and 24S-T and 17S-T aluminum-alloy sheet.