Book Details

Design of Machine Members -I

Design of Machine Members -I

Published by uLektz

Course Code:R162231

Author:uLektz

University: JNTU Kakinada

Regulation:2016

Categories:Mechanical

Format : ico_bookePUB3 (DRM Protected)

Type :eBook

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Topics
UNIT I INTRODUCTION, STRESSES IN MACHINE MEMBERS

1.1 General considerations in the design of Engineering Materials and their properties – selection

1.2 Manufacturing consideration in design, tolerances and fits - BIS codes of steels

1.3 Simple stresses – combined stresses – torsional and bending stresses – impact stresses - Combined stresses - Torsional stress - Impact stresses - Bending stress in straight beams - Bending stress in curved beams

1.4 Stress Strain Relation

1.5 Various theories of failure - Factor of safety - Design for strength and rigidity - Preferred numbers

1.6 The concept of stiffness in tension, bending, torsion and combined situations

1.7 Static strength design based on fracture toughness

UNIT II STRENGTH OF MACHINE ELEMENTS

2.1 Stress Concentration - Theoretical Stress Concentration Factor - Fatigue Stress Concentration factor, notch sensitivity

2.2 Design for fluctuating stresses - Endurance limit - Estimation of endurance strength - Goodman’s line – Soderberg’s line – Modified goodman’s line

UNIT III RIVETED AND WELDED JOINTS

3.1 Riveted and welded joints - Design of joints with initial stresses - Eccentric loading

3.2 Bolted joints - Design of bolts with pre-stresses - Design of joints under eccentric loading

3.3 Locking devices – both of uniform strength, different seals

UNIT IV KEYS, COTTERS AND KNUCKLE JOINTS, SHAFTS

4.1 Design of keys-stresses in keys-cotter joints - Spigot and socket - Sleeve and cotter - Gib and cotter joints- knuckle joints

4.2 Design of shafts for combined bending and axial loads - Shaft size - BIS codes of shafts

4.3 Use of internal and external circlips, gaskets and seals (stationary & rotary)

UNIT V SHAFT COUPLING

5.1 Rigid couplings – muff, split muff and flange couplings

5.2 Flexible couplings – flange coupling (modified)

UNIT VI MECHANICAL SPRINGS

6.1 Stresses and deflections of helical springs – Extension -Compression springs

6.2 Springs for fatigue loading, energy storage capacity

6.3 Helical torsion springs – Coaxial springs, Leaf springs

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