MATE ADVANCED STUDY GUIDE TEST.
For most materials, axially applied tensile force results in _______ values of stress & strain, whereas
axially applied compressive compressive force results in ________ values of stress & strain. - CORRECT
ANSWER (positive)(negative)
_________ stress is defined as the instantaneous force applied to a material, divided by the original
cross sectional area over which the stress acts.
_________ strain is defined as the instantaneous dimension change a material exhibits along an axis of
interest, divided by the original dimension of the material along that axis. - CORRECT ANSWER
(Engineering) (Engineering)
Consider the stress-strain response of a ductile metal near room temperature measured via a constant
strain rate tensile test. The initial linear regime of the response is best characterized as __________
deformation. - CORRECT ANSWER bond stretching
Hooke's Law applies in... - CORRECT ANSWER elastic regime
reasonable values for the elastic modulus of a typical structural metal - CORRECT ANSWER 10-900 GPa
yield point - CORRECT ANSWER the max elastic stress
tensile strength - CORRECT ANSWER the max engineering stress
elastic modulus - CORRECT ANSWER "E", the higher the elastic modulus the stiffer the material
A material property that allows one to convert between perpendicular and oppositely-signed elastic
strains is called __________ . - CORRECT ANSWER Poisson's ratio
_______ is a material property that pertains to local resistance to plastic deformation, such as scratching
or denting. It is often measured by poking a material with a very hard tip (like diamond) and measuring
the size and depth of the resulting crater that forms. - CORRECT ANSWER hardness
For most materials, axially applied tensile force results in _______ values of stress & strain, whereas
axially applied compressive compressive force results in ________ values of stress & strain. - CORRECT
ANSWER (positive)(negative)
_________ stress is defined as the instantaneous force applied to a material, divided by the original
cross sectional area over which the stress acts.
_________ strain is defined as the instantaneous dimension change a material exhibits along an axis of
interest, divided by the original dimension of the material along that axis. - CORRECT ANSWER
(Engineering) (Engineering)
Consider the stress-strain response of a ductile metal near room temperature measured via a constant
strain rate tensile test. The initial linear regime of the response is best characterized as __________
deformation. - CORRECT ANSWER bond stretching
Hooke's Law applies in... - CORRECT ANSWER elastic regime
reasonable values for the elastic modulus of a typical structural metal - CORRECT ANSWER 10-900 GPa
yield point - CORRECT ANSWER the max elastic stress
tensile strength - CORRECT ANSWER the max engineering stress
elastic modulus - CORRECT ANSWER "E", the higher the elastic modulus the stiffer the material
A material property that allows one to convert between perpendicular and oppositely-signed elastic
strains is called __________ . - CORRECT ANSWER Poisson's ratio
_______ is a material property that pertains to local resistance to plastic deformation, such as scratching
or denting. It is often measured by poking a material with a very hard tip (like diamond) and measuring
the size and depth of the resulting crater that forms. - CORRECT ANSWER hardness
