ASTM E328 Stress Relaxation Test Equipment

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ASTM E328 covers the standard test methods for stress relaxation tests for materials and structures. Stress relaxation in a material is an important characteristic to consider when designing with mechanical fasteners that must hold with a permanent tightness. Long term failure of fastener might occur if stress relaxation is not considered. According to ASTM, applications that are often tested with this standard include; bolted of riveted assemblies, press of shrink-fit components, rolled-in tubes, gaskets tightness, constraining force of springs, and stability of wire in pre-stressed concrete. This test is also valid for measuring stress relaxation of a material an area of high-stress concentration. The test environment must be highly controlled to prevent changes to the material due to environmental conditions.

TestResources specializes in Test Equipment, Machines & Fixtures that are used in material testing. We have the material testing machines that are used for ASTM E328 test standard. Call our applications engineers to talk with an expert in material testing. We will work with you to guarantee a test machine that fits your application.