Experiments in Strength of Materials

aluminum foil angular twist behavior brittle Calculate Compare the results compression test concrete cracks creep curve cross section cylindrical Describe the details Describe the specimen diagram Dial gage diameter Discuss ductile elastic elastic modulus elongation EQUIPMENT experimental extensometer fibers fracture surfaces gage length gage locations geometry grips hole ice cubes liquid metal LIQUID METAL EMBRITTLEMENT load cell load measuring device load versus machine with load mandrels material maximum deflection Mechanical testing machine Micrometer mild steel notch OBJECT Demonstrate OBJECT Determine OBJECT Perform Optical optional plastic deformations plastic zones plexiglas Plot practical significance REPORT rubber sheet sharp yielding shear center shown in Figure steel or aluminum stiffness-to-weight ratio strain gages STRENGTH OF MATERIALS stress and strain stress concentration stress versus stress-strain curve tape temperature tensile load tension test TEST BACKGROUND test procedures test setup torque torsion true strain TRUE STRESS unnotched wire specimen yield strength