17 Questions
What is the term used to describe the change in physical size of a material due to an applied force?
Strain
What is the region in the stress-strain diagram from O to P called?
Elastic range
What is the mathematical term used to express the trend of deformation change among the material field?
Strain or reduced deformation
What is the term used to describe the magnitude to which a structural element bends under a load?
Deflection
What is the limit beyond which the material will no longer go back to its original shape when the load is removed?
Elastic limit
What is the term used to describe the contact pressure between separate bodies?
Bearing stress
What is the definition of stress in materials?
The ratio of force over area
What type of material undergoes a deformation when subjected to an external loading and regains its original shape when the loading is removed?
Elastic material
What is the primary function of thin-walled pressure vessels?
To resist bursting due to internal pressure
What is the unit of simple stress?
Pa or N/m^2
What type of stress occurs when a force is applied parallel to the resisting area?
Shear stress
What is the formula for normal stress?
𝜎= 𝐹 / 𝐴
What is the point at which a material has an appreciable elongation without an increase in load?
Yield point
Which of the following is also known as breaking strength?
Rupture strength
What is the work done on a unit volume of material as the force gradually increases from O to P?
Modulus of resilience
What type of stress is applied sideways on the material?
Shear stress
What is the ratio of the distance deformed to the height in a shear strain?
Shear strain
Test your knowledge of strength of materials, including stress, thin-walled pressure vessels, and the effects of externally applied loads on bodies. Covers key concepts, formulas, and applications in mechanical engineering.
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