Exam (elaborations)
ITP 341, Quiz 1 Questions and Answers Latest Update
- Course
- ITP 341
- Institution
- University Of Southern California
ITP 341, Quiz 1 Questions and Answers Latest Update
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Solution 2024/2025Pepper
ITP 341, Quiz 1 Questions and Answers Latest
Update 2024-2025
Crystallinity ANS✔✔ Narrow MWD will have higher Crystallinity.
Glass Transition Temperature ANS✔✔ Narrow MWD will have higher Tg.
Melt Temperature ANS✔✔ Narrow MWD will have higher Tm.
Mechanical behavior of polymers is dependent on: ANS✔✔ Temperature
Crystallinity
Speed of Testing
Modulus of Elasticity ANS✔✔ The ratio of stress applied to strain produced in
the elastic portion of the material behavior.
Stress/Strain (psi)
Mechanical properties of a polymer are characterized by measuring the
following parameters: ANS✔✔ Stress
Strain
Proportional Limit
Elastic Limit
Yield Point
, Solution 2024/2025
Pepper
Break Point
Stress ANS✔✔ Is the force applied on a polymer per unit cross-sectional
area.
Stress= Force/area (psi)
Strain ANS✔✔ Is the ratio between the change in length of the polymer
material to the original length of the polymer material.
Strain= ΔL/L (no units)
Proportional Limit ANS✔✔ Stress is proportional to strain, so the stress-
strain graph is a straight line.
Elastic Limit ANS✔✔ Maximum stress a material can experience without
undergoing permanent deformation.
Yield Point ANS✔✔ Material undergo increase in strain without increase in
stress.
Break Point ANS✔✔ The maximum stress under which the polymer
material ruptures.
The mechanical properties of a polymer that are
examined: ANS✔✔ Tensile Strength
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