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Machine Design : Theories of failure and Design for fatigue
Learn about the Theories of mechanical failure and principles of designing for fatigue for mechanical engineering
This Course Includes
udemy
4.4 (415 reviews )
2h 50m 
english
Online - Self Paced
professional certificate
Udemy
About Machine Design : Theories of failure and Design for fatigue
Machine design is the practice of designing structural elements of a product to meet functional and durability criteria . Failure prevention is a big part of study for Machine design . This course deals with the various theories of failure in Static and dynamic (cyclic) loading conditions.
Basics of Principal stress from mechanics of materials
Importance of principal stress
What are Theories of failure? the most simplest form
Maximum Shear stress Theory - How it is derived , the analysis and cases
Maximum distortion Energy theory - the most widely used theory of failure for ductile materials
The derivation from concept of strain energy
Definition of Von mises stress
Mohr theory - Theory for materials with different tensile and compressive strengths
Coulomb- Mohr theory
Brittle Failure theory
Selection of Failure theory
What is Fatigue loading? fatigue failure?
Fracture mechanics basics
What is fracture toughness property
Factors to be considered
The S-N curve and RR Moore test to develop S-N curve
Endurance strength and Endurance limit
The Endurance limit modifying factors
Surface, Size, temperature, loading
Stress concentration factor
Characterization of cyclical loading
Definition of failure criteria in Fatigue The course is designed to be compact and to the point highlighting the most important concepts and the Why ? behind it. This is an advanced level course suitable if you are already familiar with strength of materials or mechanics of materials and basics of mechanical engineering .
What You Will Learn?
- Principal stress and their importance .
- Maximum Shear stress theory of failure .
- Maximum distortion Energy theory .
- Mohr and Columb mohr theory .
- Designing for Fatigue and Basics of fracture mechanics .
- Definition of endurance limit and strength .
- Modifying factors for Endurance strength .
- Defining failure criteria in fatigue.