Strength of Materials
PERT'S philosophy of mechanical engineering training can be summed up in three words: visible and functional. PERT equipment clearly illustrates concepts and provides easy and workable experiments. If you do not see something suitable amongst these pages, please do not hesitate to contact us at pertin@global.co.za for custom build or product modification.
Compact Stress/Strain Apparatus
The compact Stress/Strain Apparatus shows the stress and strain during the entire process of stretching and breaking a material.
PASCO has scaled-down
the typically expensive engineering devices so that this apparatus is able to
do all the physics without the high cost. Since the Stress/Strain Apparatus
shows the entire stress versus strain curve, it is possible to measure a wide
range of material properties including Young's Modulus, the yield strength,
tensile strength, ductility, and toughness of the material. In addition,
the different curve shapes for different materials can be compared.
The power of the DataStudio software allows the student to determine Young's Modulus by measuring the slope of the initial straight line and to determine the toughness by integrating under the curve.
The set of test coupons included with the Stress/Strain Apparatus includes: steel, annealed steel, aluminum, two types of plastic, and two different thicknesses of brass. Ten test coupons of each material are included with the unit. The Materials Sample Replacement Set includes ten test coupons of each material listed above.
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