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Assessment portfolio tutorial tasks
1.Calculate the stress within a material subjected to a force of 200N over a cross-sectional area of 5m2.
2.If a material is subjected to a yielding stress of 5kPa over a cross-sectional area of 5m2 calculate the yielding force in kN required to produce this.
3.Calculate the stress within a material specimen of cross-sectional area 4mm2 if a force of 20kN is applied to it. Give your answer in both N/mm2 and GPa.
4.Calculate the elastic modulus in GPa of a beam subjected to a stress of 2.2MPa and a strain of 0.0002. What material could this be?
5.For a material with a Young’s modulus of 180GPa, what strain will be produced by a stress of 3.6MPa?
6.Calculate the typical tensile stress in MPa built up in a section of concrete subjected to a strain of 0.015.
7.Calculate the Young’s modulus for the loading conditions shown in the diagrammatic representation below. What non-metallic material is this likely to be?