Strength of Materials detailed Syllabus for Mechanical Engineering (ME), I – scheme has been taken from the MSBTE official website and presented for the diploma students. For Subject Code, Subject Name, Lectures, Tutorial, Practical/Drawing, Credits, Theory (Max & Min) Marks, Practical (Max & Min) Marks, Total Marks, and other information, do visit full semester subjects post given below.
For all other Diploma in Mechanical Engineering (ME) Syllabus for 3rd Sem I – Scheme MSBTE, do visit Diploma in Mechanical Engineering (ME) Syllabus for 3rd Sem I – Scheme MSBTE Subjects. The detailed Syllabus for strength of materials is as follows.
Rationale:
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Competency:
The aim of this course is to help the student to attain the following industry identified competency through various teaching learning experiences:
- Estimate stresses in structural members and mechanical properties of materials.
Course Outcomes:
The theory, practical experiences and relevant soft skills associated with this course are to be taught and implemented, so that the student demonstrates the following industry oriented COs associated with the above mentioned competency:
- Compute Moment of Inertia of symmetric and asymmetric structural sections.
- Estimate simple stresses in machine components.
- Perform test to evaluate mechanical properties according to India Standards.
- Compute shear force and bending moment and corresponding shear and bending stresses in beams subjected to point and uniformly distributed load.
- Estimate stresses in shafts under twisting moments.
- Estimate stresses in short member subjected to eccentric loading.
Suggested Exercises:
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Instruments Required:
The major equipment with broad specification mentioned here will usher in uniformity in conduct of experiments, as well as aid to procure equipment by authorities concerned.
Equipment Name with Broad Specifications
- Universal Testing Machine: Capacity – 100 tonnes. Type: Mechanical type digital, electrically Operated Accessories:
- Tensile test attachment for flat and round specimen up to 32 mm.
- Compression test attachment
- Shear test attachment with sizes of bushes 5,6,8,10,12,16,20,24 mm
- Transverse test attachment with bending Punch
- Service tools
- Operation and maintenance manuals – 2 nos
- 1 lardness attachment
- Digital Extensometer: Least count – 0 001 mm. Max. Extension = 5 mm. Single dial gauge for 30,40 mm. 60 mm, 80 mm, 100 mm, 125 mm gauge length.
- Impact Testing Machine: CHARPY Test Apparatus: Pendulum drop angle 140; Pendulum effective Wt 20-25 kg; Striking velocity of pendulum 5-6 m/sec; Pendulum impact energy 300 j; Min scale graduation 2d distance of axis of pendulum rotation from center of specimen to specimen hit by pendulum 815 mm. IZOD Impact Test Apparatus: Pendulum drop angle: 90-120; Pendulum effective Wt: 20-25 kg; Striking velocity of pendulum: 3-4 m/sec; Pendulum impact energy: 168 j; Min scale graduation: 2 J; Distance of axis of pendulum rotation from center of specimen to specimen hit by pendulum : 815 mm
- Torsion Testing Machine: Fixed with auto torque selector to regulate torque ranges Contains geared motor to apply torque to specimen through gearbox Attached with autographic recorder for relation between torque and angle of twist Accuracy + 1 % of the true torque Suitable For: Torsion and Twist test on diverse metal rods and flats Torque Measurement by pendulum dynamometer system
- Compression Testing Machine: Digital display manual control compression testing; machine; Max. Capacity (KN): 2000 ; Measuring range: 4%-l 00% of FS; Relative error of reading: <1%; Max. distance between two platen (mm): 330; Compression platen size (mm): 220*220; Max. piston stroke (mm): 0-20; Max. piston speed (mm/min): Approx. 30; Column clearance (mm): 300*200; Oil pump motor power (KW): 1 5; Whole dimensions (mm): 855*380*1435
- Strain Gages set: CEA-13-125UR-350 Strain Gages; CEA-00-125UR-350 Strain Gages; CEA-00-125UT-350 Strain Gages. With strain gauge data logger and connecting cables.
- Freeware/open source software for drawing SF and BM diagrams.
Unit 1
Moment of Inertia
Total Teaching Hours – 04
Distribution of Theory Marks
R Level – 02
U Level – 00
A Level – 04
Total Marks – 06
Unit Outcomes (UOs) (in cognitive domain)
- Calculate MI of the given standard shape.
- Calculate MI of the given simple composite shape.
- Explain with sketches effect of change in MI in case of the given beam and column.
- Calculate Polar MI and radius of gyration for the given body.
Topics and Sub-topics
- Concept of Moment of Inertia (MI), Effect of MI in case of beam and column.
- MI about axes passing through centroid, Parallel and Perpendicular axes theorem, Polar MI, radius of gyration.
- MI of standard basic shapes.
- MI of Composite plane figures.
Unit 2
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Unit 3
Mechanical Properties and Elastic Constants of Metals
Total Teaching Hours – 08
Distribution of Theory Marks
R Level – 02
U Level – 02
A Level – 04
Total Marks – 08
Unit Outcomes (UOs) (in cognitive domain)
- Identify type of deformation for the given type of load with justification.
- Evaluate different mechanical properties of the given material.
- Identify types of load acting in the given situation with justification.
- Identify type of material from the given data with justification.
- Calculate strain and axial deformation in each direction under the given bi-and tri-axial stresses.
- Estimate Resilience, Modulus of resilience, Proof Resilience for the given case.
Topics and Sub-topics
- Types of loads (actions) and related deformations, Flexure, torsion, shear.
- Mechanical properties: Elasticity, Plasticity, Ductility, Brittleness, Malleability, Fatigue, Creep, Toughness, Hardness.
- Strength, Factor of Safety, Stiffness and flexibility.
- Linear and lateral strain, Poissons ratio, changes in lateral dimension.
- Uni- Bi -Tri-axial stress systems, strain in each direction, Bulk modulus, volumetric strain.
- Relation between three moduli.
- Stress due to Gradual, Sudden and Impact load, corresponding deformation. Strain Energy, Resilience, Proof Resilience and Modulus of resilience.
Unit 4
Shear Force -Bending Moment and Shear Stresses-Bending Stresses
Total Teaching Hours – 16
Distribution of Theory Marks
R Level – 02
U Level – 06
A Level – 20
Total Marks – 28
Unit Outcomes (UOs) (in cognitive domain)
- Calculate SF and BM for the given load and beam.
- Draw SFD and BMD for the given loaded beam.
- Locate point of maximum BM and point of contraflexure in the given case.
- Draw deflected shape of beam from the given BMD.
- Use flexural formula for the given bending situation
- Draw NA and extreme fibers in bending for the given beam.
- Determine Section modulus and Moment of resistance for the given beam.
- Determine bending stress and shear stress for the given load and beam.
- Draw bending stress and shear stress variation diagram for the given beam.
Topics and Sub-topics
- Types of Beams ( Simply supported with or without overhang, Cantilever), types of loads ( Point load, Uniformly Distributed load), Bending of beam, deflected shape.
- Meaning of SF and BM, Relation between them, Sign convention.
- SFD and BMD, Location of point of maximum BM, Deflected shape from BMD, Location of Point of Contra-flexure.
- Theory of simple bending, Assumptions in theory of bending, Flexural formula, Neutral axis.
- Moment of resistance, Section modulus.
- Bending stress variation diagram across depth for cantilever and simply supported beam for symmetrical and unsymmetrical sections.
- Transverse shear stress, average and maximum shear stress, Shear stress variation diagram.
Unit 5
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Unit 6
Direct and Bending Stresses
Total Teaching Hours – 06
Distribution of Theory Marks
R Level – 02
U Level – 02
A Level – 06
Total Marks – 10
Unit Outcomes (UOs) (in cognitive domain.
- Identify machine components subjected to eccentricity with justification.
- Calculate resultant stress and draw resultant stress variation diagram for the given situation.
- Mark core (kernel) of the given standard section.
- Determine size of component for the given stress condition.
Topics and Sub-topics
- Axial and eccentric load, effects of eccentricity, Field cases (Hook, clamp, Bench Vice, Frame etc)
- Axial stress and bending stress, resultant stress intensities, resultant stress variation (Eccentricity about one axis only)
- Limiting eccentricity, Core of section.
- No tension condition.
Note: To attain the COs and competency, above listed UOs need to be undertaken to achieve the Application Level’ and above of Blooms ‘Cognitive Domain Taxonomy
Note:
Legends: R=Rememher, U=Understand, A= Apply and above (Blooms Revised taxonomy)
Note: This specification table provides general guidelines to assist student for their learning and to teachers to teach and assess students with respect to attainment of UOs. The actual distribution of marks at different taxonomy levels (of R, U and A) in the question paper may vary from above table.
- These 28 marks should be equally divided between Shear force- Bending Moment and Shear stresses- Bending stresses, hence questions of 14 marks should be asked from each of these topics.
Suggested Student Activities:
Other than the classroom and laboratory learning, following are the suggested student-related co-curricular activities which can be undertaken to accelerate the attainment of the various outcomes in this course. Students should conduct following activities in group and prepare reports of about 5 pages for each activity, also collect/record physical evidences for their (students) portfolio which will be useful for their placement interviews.
- Undertake micro-projects.
- Prepare journals based on practical performed in laboratory.
- Poster presentation on any one topic.
- Market survey specific to properties of various type of materials used in Mechanical Engineering
Suggested Special Instructional Strategies:
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Suggested Micro-Projects
Only one micro-project is planned to be undertaken by a student that needs to be assigned to him/her in the beginning of the semester. In the first four semesters, the micro-project are group-based. However, in the fifth and sixth semesters, it should be preferably be individually undertaken to build up the skill and confidence in every student to become problem solver so that s/he contributes to the projects of the industry. In special situations where groups have to be formed for micro-projects, the number of students in the group should not exceed three.
The micro-project could be industry application based, internet-based, workshopbased, laboratory-based or field-based. Each micro-project should encompass two or more COs which are in fact, an integration of PrOs, UOs and ADOs. Each student will have to maintain dated work diary consisting of individual contribution in the project work and give a seminar presentation of it before submission. The total duration of the micro-project should not be less than 16 (sixteen) student engagement hours during the course. The student ought to submit micro-project by the end of the semester to develop the industry oriented COs.
A suggestive list of micro-projects are given here. Similar micro-projects could be added by the concerned faculty:
- Collect information and present in tabular form, values of different engineering properties of five standard mechanical engineering materials.
- Present a seminar on different testing methods used in industry.
- Prepare models of single and double shear conditions.
- Prepare a model of a shaft to demonstrate relation between length and angle of twist.
- Prepare an excel sheet to calculate SF and BM in a simply supported beam and cantilever beam.
- Collect information comprising of different machine components subjected to direct and bending stresses.
Suggested Learning Resources:
- Strength of Materials Punmia B.C. Laxmi Publications Ltd. New Delhi, 10/e, 2015,ISBN: 9788131809259
- Strength of Materials Ramamurtham S. Dhanpat Rai Publishing , New Delhi; 2014, ISBN: 9789384378264
- Strength of Materials Timoshenko Gere CBS,2 edition, 2006, New Delhi, ISBN: 9788123908946
- Strength of Materials Khurmi R.S S. Chand Publishing, New Delhi, 2006 , ISBN: 9788121928229
- Strength of Materials Rattan S.S. McGraw Hill Education;, New Delhi, ISBN: 9789385965517
Software/Learning Websites:
For the complete Syllabus, results, class timetable, and many other features kindly download the iStudy App
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For detail Syllabus of all other subjects of Mechanical Engineering, I – scheme do visit Mechanical Engineering 3rd Sem Syllabus for I – scheme.
For all Mechanical Engineering results, visit MSBTE Mechanical Engineering all semester results direct links.