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MATSE 259 Exam 1 PSU Questions and Answers | Latest Version | 2024/2025 | Graded A+ $9.97   Add to cart

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MATSE 259 Exam 1 PSU Questions and Answers | Latest Version | 2024/2025 | Graded A+

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MATSE 259 Exam 1 PSU Questions and Answers | Latest Version | 2024/2025 | Graded A+ How does strain relate to deformation in materials? Strain is the measure of deformation representing the change in length relative to the original length. What is yield strength? Yield strength is th...

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  • October 29, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • MATSE 259
  • MATSE 259
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MATSE 259 Exam 1 PSU Questions and
Answers | Latest Version | 2024/2025 |
Graded A+

How does strain relate to deformation in materials?


✔✔Strain is the measure of deformation representing the change in length relative to the original

length.




What is yield strength?


✔✔Yield strength is the stress at which a material begins to deform plastically.




Why is Young's modulus important in materials science?


✔✔Young's modulus measures a material’s stiffness, or resistance to elastic deformation under

load.




What is the difference between stress and strain?


✔✔Stress is the internal force per unit area within a material, while strain is the measure of

deformation from that stress.




1

,How is ductility defined in the context of materials science?


✔✔Ductility is the ability of a material to undergo significant plastic deformation before rupture.




What does hardness indicate about a material?


✔✔Hardness indicates a material's resistance to deformation, scratching, or indentation.




What is toughness in materials science?


✔✔Toughness is the ability of a material to absorb energy and deform plastically before

fracturing.




Why are brittle materials generally weaker under tension?


✔✔Brittle materials lack the ability to undergo plastic deformation and are more prone to

cracking under tensile stress.




What is plastic deformation?


✔✔Plastic deformation is the permanent change in shape that occurs when a material is

subjected to a stress beyond its elastic limit.




2

, How does temperature typically affect the strength of metals?


✔✔Higher temperatures generally decrease the strength of metals by making them softer and

more ductile.




What is fatigue in materials?


✔✔Fatigue is the weakening of a material caused by repeated cyclic loading, eventually leading

to fracture.




What is the purpose of conducting a tensile test?


✔✔A tensile test is conducted to determine mechanical properties like yield strength, tensile

strength, and ductility.




What causes creep in materials?


✔✔Creep is caused by long-term exposure to high stress and temperature, leading to slow,

permanent deformation over time.




What is the main characteristic of a brittle fracture?


✔✔Brittle fracture occurs with little or no plastic deformation, often breaking suddenly and

without warning.

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