Model Description This is a simple demonstration of the basic principles underlying the elastic and plastic behavior of materials subjected to an axial load. The demonstration can also be used to show the highlight the elastic and plastic portions of stress-strain curves. This demonstration should take 8-10 minutes. Engineering Principle The basic definitions for stress, […]
Model Description This is a simple demonstration of the basic principles underlying the behavior of materials subjected to an axial load. The demonstration can also be used to show the usefulness of stress-strain curves versus load-deformation curves. This demonstration should take 10 minutes. Engineering Principle The basic definitions for deformation and strain: where the axial […]
Model Description A thin rectangular sheet of rubber material is subject to an axial load. Stress blocks are painted or drawn on the rubber material. The stress blocks are oriented on a transverse plane (black square) and on a plane 45° from the transverse plane (red square). Students have previously learned that only normal stress […]
Model Description This is a simple demonstration to show how tension and compression affect members of trusses. A wacky fun noodle (tube floatation device) will be used to demonstrate the effects of tension and compression on axial members. Students pull or push each end to display the desired behavior. This demonstration should take 5-10 minutes. […]