Machine Design : Theories of failure and Design for fatigue
What you'll 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
Requirements
- Understanding of strength of materials or mechanics of materials is desirable to understand the concepts in the course
Description
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 .
Who this course is for:
- Mechanical Engineering students
- Design engineers looking to refresh their basics in Machine design
- Anyone interested in mechanical and machine design
Instructor
- 4.4 Instructor Rating
- 11,312 Reviews
- 36,345 Students
- 24 Courses
Mufaddal Rasheed is a mechanical design engineer and an inventor experienced in a role in Automotive R&D designing complete Chassis systems from Concept to production for SUV projects in Mahindra & Mahindra Ltd for 7 years . Part of a team which delivered a innovative modular chassis platform for 5 vehicles.
With knowledge of the complete product development process and the details of engineering systems, he brings to the table a combination of analytical and creative skills.
Currently working on multiple projects of his own towards becoming a serial inventor and educator in the area of Design engineering.
He is passionate about mechanical design and innovation and writes regularly on Quora with a Top writer badge.
Core belief is that engineering is a lifelong learning process and for a designer it is "the more you know the better you design".
Building a comprehensive knowledge system for mechanical design engineers and aspirants which would prepare an individual for engineering innovation at Mechademic
The Courses are focused on Practical aspects of Automotive and General Mechanical design engineering Targeted purely towards product development grounded in theory.
What students say about the courses according to 600+ sample surveys
97 % say they are learning valuable information
96 % say the explanation of concepts is clear
99 % say the instructor is knowledgeable in the subject