12 Questions
What type of materials exhibit little or no yielding before failure?
Brittle materials
Which term refers to the entire area under the stress–strain diagram?
Modulus of Toughness
What is the ratio of modulus of toughness to the modulus of resilience called?
Ductility Factor
Which condition involves a material deforming permanently due to stress above the elastic limit?
Plasticity
What happens when a metal is subjected to repeated cycles of stress or strain?
Fatigue failure
At what point is the strain-energy density referred to as the modulus of resilience?
Proportional limit
What type of force is developed when one body exerts a force on another body without direct physical contact?
Body force
In what type of material do physical and mechanical properties remain the same throughout its volume?
Homogeneous material
What is the term used for the change in angle that occurs between two line segments originally perpendicular to each other?
Shear strain
What behavior results in a slight increase in stress above the elastic limit causing permanent deformation of the material?
Yielding behavior
What is the term for the stress that causes yielding in a material?
Yield stress
What phenomenon results in a continuous rise of stress until reaching the ultimate stress while the specimen's cross-sectional area decreases?
Necking
Test your knowledge on surface forces, body forces, prismatic structures, homogeneous materials, isotropic materials, and load factors in the field of engineering mechanics.
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