Question

2) Your colleague is loading a sample of rubber to test is graphs the results of the test and compares them with for rubber. The graph she has plotted is shown below. sample of rubber to test its elastic properties. She and compares them with the theoretical results Load Practical Theoretical Elongation a) Explain why the sample of rubber does not return to its original length when it is unloaded. b) Compare the theoretical graph to the practical results, are they similar? What factors would contribute to the difference in results, if any?

Answer 1

Because when the material is loaded beyond the elastic limit then the material permanent deformation occurred . in this case same concept we can apply.

compare between theoretical and practical graph in theoretical graph there are more load is using and there are more deformation takes place compare to practical graph