ANALYSIS OFSTRESSAND STRAIN 87-1 CONCEPTS OF THE STAFE OF STRISS 1、 Forward 1) Investigation on the tensile, compressive and torsional test of cast iron and low-carbon steel Cast iron in Cast iron in compression tension M Low-carbon steel Cast iron 2) How will the member rupture in combined deformations M§7–１ CONCEPTS OF THE STAFE OF STRISS 1、Forward 1)、Investigation on the tensile, compressive and torsional test of cast iron and low-carbon steel M Low-carbon steel Cast iron P P Cast iron in tension P Cast iron in compression 2)、How will the member rupture in combined deformations？ M P