# JNTUA R20 B.tech Strength of Materials Syllabus 2021

JNTUA B.tech R20 Strength of Materials Syllabus along with Course Objectives and Course outcome and list of textbook and reference books is mentioned in this blog. The subject of Strength of Materials has 5 units in total. Topic and sub-topics of Strength of Materials are mentioned below in detail. If you have any problem in understanding Strength of Materials any other Engineering Subject in any semester or in any year then you can view the video lectures on the official CynoHub app.

#### JNTUA B.tech R20 Strength of Materials Syllabus Unit 1

##### Introduction to Mechanics:

Basic Concepts, system of Forces Coplanar Concurrent Forces
Components in Space Resultant Moment of Forces and its Application Couples and Resultant of
Force Systems. Equilibrium of system of Forces: Free body diagrams, Equations of Equilibrium of
Coplanar Systems and Spatial systems
Center of Gravity and moment of inertia: Introduction Centroids of rectangular, circular, I, L and
T sections Centroids of built up sections.
Area moment of Inertia: Introduction Definition of Moment of Inertia of rectangular, circular, I, L
and T sections Radius of gyration. Moments of Inertia of Composite sections.

#### JNTUA B.tech R20 Strength of Materials Syllabus Unit 2

##### Simple Stresses and Strains:

Types of stresses and strains Hooke‘s law Stress strain diagram for mild steel working stress
Factor of safety lateral strain, Poisson‘s ratio and volumetric strain Elastic moduli and the
relationship between them Bars of Varying section Composite bars Temperature stresses. Strain

#### JNTUA B.tech R20 Strength of Materials Syllabus Unit 3

##### Shear Force and Bending Moment:

Definition of beam types of beams Concept of Shear force and bending moment S.F and B.M
diagrams for cantilever, simply supported and over changing beams subjected to point loads,
flexure Relation between S.F, B.M and rate of loading at section of a beam.

#### JNTUA B.tech R20 Strength of Materials Syllabus Unit 4

##### Flexural Stresses:

Theory of simple bending Assumptions Derivation of bending equation: M/I = f/Y = E/R Neutral
axis Determination of bending stresses Section modulus of rectangular and circular sections (Solid
and Hallow), I, T, Angle and Channel Sections Design of simple beam sections.

#### JNTUA B.tech R20 Strength of Materials Syllabus Unit 5

Shear Stresses:
Derivation of formulaShear stress distribution across various beam sections like rectangular, circular,
triangular, I, T and angle sections. Combined bending and shear.
Analysis of trusses by Method of Joints & Sections.

#### JNTUA B.tech R20 Strength of Materials Syllabus Course Objectives

• To make the student understand how to resolve forces and moments in a given system
• To demonstrate the student to determine the centroid and second moment of area

• To impart procedure for drawing shear force and bending moment diagrams for beams.

• To make the student able to analyze flexural stresses in beams due to different loads.

• To enable the student to apply the concepts of strength of materials in engineering
applications and design problems.

#### JNTUA B.tech R20 Strength of Materials Syllabus Course Outcomes

• Understand the basic concepts of forces

• Draw Free body Diagrams for forces

• Determine the centroid and moment of inertia for different cross section areas

### Scoring Marks in JNTUA B.tech R20 Strength of Materials Syllabus

Scoring good grades in Strength of Materials is a difficult task. CynoHub is here to help. We have made a video which will help Engineering Students get rank 1 in their B.tech exams this video will help students to score good grades in Strength of Materials. There are many reasons that scoring in Strength of Materials exams is difficult so this video will help you to rectify the mistakes students make in exams.

JNTUA B.tech R20 Strength of Materials Syllabus was made clear in this article. To know about the syllabus of other Engineering Subjects of JNTUK check out the official CynoHub application. Click below to download the CynoHub application.

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