(1) Study and compare the tensile mechanical properties of low carbon steel and cast iron. (2) Understand the load-deformation relationship of low carbon steel and cast iron specimens. (3) Learn to measure the mechanical properties of materials.
(1) Study and compare the compression mechanical properties of low carbon steel and cast iron. (2) Understand the load-deformation relationship of low carbon steel and cast iron specimens. (3) Observe the fracture of cast iron samples and analyze the causes of fracture.
(1) Study and compare the mechanical properties of low carbon steel and cast iron in torsion experiments. (2) Understand the torque-torsion angle relationship of low carbon steel and cast iron specimens. (3) Learn to measure the mechanical properties of materials. (4) Verify Hooke’s law of torsional deformation.
(1) Understand the basic principles of strain measurement with electrical strain gages. (2) Master the skills of installing, wiring and inspecting strain gages.
(1) Learn the basic principles and methods for measuring static stress using strain gauges and resistance strain instrument. (2) Measure the normal stress of bending at different positions on the section of a steel beam. (3) Verify the formula for normal stress of bending in beams.
(1) Further master the skill of using resistance strain instrument. (2) Measure the normal stress of bending at different positions on the section of a composite beam.
(1) Measure the principal stress at a point on the surface of a thin-walled round tube. (2) Verify the theoretical formula of deformation under combined load of bending and torsion. (3) Understand the application of strain-gauge rosette.
(1) Verify the correctness of the superposition principle. (2) Measure the stress associated with the normal force and bending moment separately in the eccentric tensile test. (3) Measure elastic modulus and eccentricity.
(1) Observe the instability of the ideal column under pressure. (2) Measure the critical load of ideal column with pin supports.
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