CH 3 HW MP
If engineering stress and true stress were measured simultaneously during a tensile test, which would have the higher value?
True stress.
The shear modulus of elasticity is approximately what percent of Young's modulus?
40%.
Which one of the following materials has the highest hardness?
Alumina ceramic.
Which of the following are the three basic types of static stress to which a material can be subjected?
Compression. Shear. Tensile.
Which one of the following materials has the highest modulus of elasticity?
Diamond.
Which one of the following types of stress-strain relationship best describes the behavior of metals at temperatures above their respective recrystallization points?
Elastic and perfectly plastic.
Which one the following types of stress-strain relationship best describes the behavior of brittle materials such as ceramics and thermosetting plastics?
Perfectly elastic.
The strength coefficient and strain-hardening exponent measured in a tensile test for a given metal are nearly identical to those measured in a compression test.
T
The modulus of elasticity is also known as which one of the following?
Young's modulus.
The plastic region of the stress-strain stress curve for a metal is characterized by a proportional relationship between stress and strain.
f