Question: Explain is occurring at the molecular level as the experiment proceeds, including during necking. How might the stress-strain curve differ for LDPE? Explain 4. Semi-crystalline

Explain is occurring at the molecular level as the experiment proceeds, including during necking.
How might the stress-strain curve differ for LDPE? Explain
4. Semi-crystalline polymers such as HDPE have the characteristic tensile stress-strain curve shown below. Also shown are sketches of the progressive deformation of a dog- bone' specimen. Assume that the curve was determined at room temperature. Stress f!!!!! Strain
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