Uka Tarsadia University
B. Tech
Mechanics of Automobile Body
(030130503)
5TH Semester
EFFECTIVE FROM January-2013
Uka Tarsadia University
A. Prerequisite:
Basics of Mechanics of Automobile Body
B. Aim and Objective:
To provide a comprehensive knowledge of Mechanics of Automobile
Body and its structure under loading condition.
C. Subject Code: 030130503
D. Total:
78 Hrs.
Subject: Mechanics of Automobile Body
[Lecture: 4
Tutorial: 0
Practical: 0]
E. Detailed Syllabus:
Sr. No.
1.
1.1
1.2
1.3
1.4
1.5
1.6
2.
2.1
2.2
2.3
2.4
3.
3.1
3.2
3.3
3.4
3.5
3.6
4.
4.1
4.2
4.3
4.4
4.5
Topic Name
Weightage (%)
The automobile body structural requirement
Description of the automobile body types and body
nomenclature
Body mass benchmarking
Categories of structural requirements
The locate and retain function
Locate and retain for front suspension attachment structure
Flow down of requirements from vehicle-level functions
Torsion of shaft and spring
Torsional shearing stress and strain, torsion formula, power
transmission
Torque transmitted, torsional rigidity
Composite shaft, combined bending and torsion
Expression for strain energy stored in a body due to torsion
Stresses in machine elements
Theory of pure bending with assumptions made
Neutral axis and moment of resistance
Section modulus, bending stress distribution diagram
Bending stresses in symmetrical and unsymmetrical sections
Shear stress at a section
Shear stress distribution for different section
Theories of failure
18
Introduction, maximum principal stress theory
Maximum principal strain theory
Maximum shear stress theory
Maximum strain energy theory
Maximum shear strain energy theory
16
18
16
Uka Tarsadia University
5.
5.1
5.2
5.3
5.4
6.
6.1
6.2
6.3
6.4
Fatigue loading
18
Fluctuating stresses and fatigue failure
Endurance limit and notch sensitivity
Reversed stresses-design for finite and infinite life
Soderberg and Goodman lines and Modified-Goodman
diagram
Elements of fracture mechanics
16
Historical background
Stress-intensity factor and energy release rate
Fracture criteria and fracture toughness
Fatigue crack prorogation
F. Modes of Transaction (i.e. Delivery)
1. Lectures /discussion method shall be fruitful. It should be supplemented with various
appropriate audio-visual aids.
2. Activity assignment or presentation shall be given to students.
G. Teachers Activities/Practicum
The following activities should be carried out by the teachers:
1. Demonstrating through video lecture.
2. Assign Assignments on regular period.
3. Assessment of submissions.
4. Manual preparation on lab work.
H. Student Activities/Practicum
The following activities may be carried out by the students:
1. Assignment submission
2. Sample calculation and result analysis.
3. Making graph related to the experiment done.
I. Text Books
1. Dr. R K Bansal, “A textbook of strength of materials”, Laxmi Publications.
2. R S Khurmi, “Strength of Materials”, S Chand.
3. Abdul Mubbin, “A text book of Machine Design”.
J. Reference Books
1. S Ramamrutham, “A text book of strength of materials”, Dhanpatrai Publications.
2. Prashant Kumar, “Elements of fracture mechanics”, Tata McGraw Hill.