Tensile Test for Metallic Materials Using Strain Rate Control and Stress Rate Control

Introduction

International standards for tensile testing of metallic materials have been revised as specified in ISO 6892 and JIS Z2241, such that strain rate control, where strain is measured with an extensometer, has recently been added as a test item to the current stress rate control method, in which a load is applied to a material until its yield point is reached. As a result, it can be assumed that there will be situations where both stress rate control and strain rate control tensile testing of metallic materials will be required. Here, we introduce examples of strain rate control and stress rate control tensile testing of metallic samples, including cold-rolled steel, austenitic stainless steel, aluminium alloy and brass, according to ISO 6892, using the Shimadzu Autograph AG-50kNX Precision Universal Tester, and the SSG50-10H strain gauge type one-touch extensometer.

January 27, 2012 GMT