Podcast
Questions and Answers
What is the primary cause of fatigue failure in materials?
What is the primary cause of fatigue failure in materials?
- Gross plastic deformation
- High tensile strength
- Repeated loading and unloading (correct)
- Static load exceeding the material's strength
Which type of stress is required for fatigue failure to occur?
Which type of stress is required for fatigue failure to occur?
- Part of the stress has to be tensile (correct)
- Pure compressive stress
- Symmetrical stress about a mean zero stress level
- Asymmetric stress with maximum and minimum stresses
When does fatigue failure typically occur?
When does fatigue failure typically occur?
- At low loads causing gross plastic deformation
- After a lengthy period of repeated stress or strain cycling (correct)
- At high loads exceeding the yield strength
- During sudden and expected events
What type of stress cycle has symmetrical amplitude about a mean zero stress level?
What type of stress cycle has symmetrical amplitude about a mean zero stress level?
What is the nature of fatigue failure?
What is the nature of fatigue failure?
Where is fatigue failure commonly observed?
Where is fatigue failure commonly observed?
What type of stress cycle has asymmetric maximum and minimum stresses?
What type of stress cycle has asymmetric maximum and minimum stresses?
What type of machine components are susceptible to fatigue failure?
What type of machine components are susceptible to fatigue failure?
What is the nature of fatigue failure even in normally ductile metals?
What is the nature of fatigue failure even in normally ductile metals?
In which type of consumer products can fatigue failure occur?
In which type of consumer products can fatigue failure occur?
What type of stress is experienced by components subjected to dynamic loads?
What type of stress is experienced by components subjected to dynamic loads?
What are the fatigue properties obtained from the fatigue test?
What are the fatigue properties obtained from the fatigue test?
What type of failure is particularly relevant for components subjected to dynamic loads?
What type of failure is particularly relevant for components subjected to dynamic loads?
What type of components are typically designed to withstand dynamic loads without permanent deformation?
What type of components are typically designed to withstand dynamic loads without permanent deformation?
What kind of test provides useful values for material selection and component dimensioning for statically loaded components?
What kind of test provides useful values for material selection and component dimensioning for statically loaded components?
What type of stress increases slowly but steadily until the load finally fractures the specimen in tensile, compression, and bending tests?
What type of stress increases slowly but steadily until the load finally fractures the specimen in tensile, compression, and bending tests?
What type of stress cycle has symmetrical amplitude about a mean zero stress level?
What type of stress cycle has symmetrical amplitude about a mean zero stress level?
What type of failure is particularly relevant for components subjected to dynamic loads?
What type of failure is particularly relevant for components subjected to dynamic loads?
What is the nature of fatigue failure even in normally ductile metals?
What is the nature of fatigue failure even in normally ductile metals?
What kind of test provides useful values for material selection and component dimensioning for statically loaded components?
What kind of test provides useful values for material selection and component dimensioning for statically loaded components?
What type of components are typically designed to withstand dynamic loads without permanent deformation?
What type of components are typically designed to withstand dynamic loads without permanent deformation?
What are the fatigue properties obtained from the fatigue test?
What are the fatigue properties obtained from the fatigue test?
What type of stress increases slowly but steadily until the load finally fractures the specimen in tensile, compression, and bending tests?
What type of stress increases slowly but steadily until the load finally fractures the specimen in tensile, compression, and bending tests?
What is the primary cause of fatigue failure in materials?
What is the primary cause of fatigue failure in materials?
When does fatigue failure typically occur?
When does fatigue failure typically occur?
In which type of consumer products can fatigue failure occur?
In which type of consumer products can fatigue failure occur?
Which type of stress can be cyclic or random when components are subjected to dynamic loads?
Which type of stress can be cyclic or random when components are subjected to dynamic loads?
What type of failure is particularly relevant for components subjected to dynamic loads?
What type of failure is particularly relevant for components subjected to dynamic loads?
In which tests does the intensity of the stress increase slowly but steadily until the load finally fractures the specimen?
In which tests does the intensity of the stress increase slowly but steadily until the load finally fractures the specimen?
Which type of machine components are particularly susceptible to fatigue failure?
Which type of machine components are particularly susceptible to fatigue failure?
What type of stress cycle has asymmetric maximum and minimum stresses?
What type of stress cycle has asymmetric maximum and minimum stresses?
What is the primary cause of fatigue failure in materials?
What is the primary cause of fatigue failure in materials?
