Strength of Materials detail TNDTE Diploma syllabus for Agricultural Technology (AG), M scheme is extracted from TNDTE official website and presented for diploma students. The course code (32031), and for exam duration, Teaching Hr/week, Practical Hr/week, Total Marks, internal marks, theory marks, duration and credits do visit complete sem subjects post given below. The syllabus PDFs can be downloaded from official website.
For all other agriculture 3rd sem syllabus for diploma m scheme tndte you can visit Agriculture 3rd Sem Syllabus for Diploma M Scheme TNDTE Subjects. The detail syllabus for strength of materials is as follows.
Rationale:
Day by day, engineering and technology experience tremendous growth. Design plays a major role in developing engineering and technology. Strength of material is backbone for design. The strength of material deals generally with the behaviour of objects, when they are subject to actions of forces. Evaluations derived from these basic fields provide the tools for investigation of mechanical structure.
Objectives:
- Define various Support reaction and equilibrium.
- Calculate the deformation of materials, which are subjected to axial load and shear.
- Determine the moment of Inertia of various sections used in industries.
- Estimate the stresses induced in thin shells.
- Draw the shear force and bending moment diagram of the beam for different loads.
Unit I
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Unit II
Deformation Of Metals
Mechanical properties of materials: Engineering materials -Ferrous and non-ferrous materials – Definition of mechanical properties – Alloying elements-effect of alloying element – Fatigue, fatigue strength, creep – temperature creep – cyclic loading and repeated loading – endurance limit.
Simple stresses and strains: Definition – Load, stress and strain -Classification of force systems – tensile, compressive and shear force systems – Behaviour of mild steel in tension up to rupture – Stress -Strain diagram – limit of proportionality – elastic limit – yield stress -breaking stress – Ultimate stress – percentage of elongation and
percentage reduction in area – Hooke’s law – Definition – Young’s modulus – working stress, factor of safety, load factor, shear stress and shear strain – modulus of rigidity. Linear strain – Deformation due to tension and compressive force – Simple problems in tension, compression and shear force.
Definition – Lateral strain – Poisson’s ratio – volumetric strain – bulk modulus – volumetric strain of rectangular and circular bars -problems connecting linear, lateral and volumetric deformation -Elastic constants and their relationship – Problems on elastic constants – Definition – Composite bar – Problem in composite bars subjected to tension and compression – Temperature stresses and strains – Simple problems – Definition – strain energy – proof resilience – modulus of resilience – The expression for strain energy stored in a bar due to Axial load – Instantaneous stresses due to gradual, sudden, impact and shock loads – Problems computing instantaneous stress and deformation in gradual, sudden, impact and shock loadings.
Unit III
Geometrical Properties Of Sections And Thin Shells
Properties of sections: Definition – center of gravity and centroid -position of centroids of plane geometrical figures such as rectangle, triangle, circle and trapezium-problems to determine the centroid of angle, channel, T and I sections only – Definition-centroidal axis-Axis of symmetry. Moment of Inertia – Statement of parallel axis theorem and perpendicular axis theorem. Moment of Inertia of lamina of rectangle, circle, triangle, I and channel sections-Definition-Polar moment of Inertia-radius of gyration – Problems computing moment of inertia and radius of gyration for angle, T, Channel and I sections.
Thin Shells: Definition – Thin and thick cylindrical shell – Failure of thin cylindrical shell subjected to internal pressure – Derivation of Hoop and longitudinal stress causes in a thin cylindrical shell subjected to internal pressure – simple problems – change in dimensions of a thin cylindrical shell subjected to internal pressure – problems – Derivation of tensile stress induced in a thin spherical shell subjected to internal pressure – simple problems – change in diameter and volume of a thin spherical shell due to internal pressure – problems.
Unit IV
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Unit V
Theory Of Torsion And Springs
Theory of torsion – Assumptions – torsion equation –
strength of solid and hollow shafts – power transmitted – Definition -Polar modulus – Torsional rigidity – strength and stiffness of shafts -comparison of hollow and solid shafts in weight and strength considerations – Advantages of hollow shafts over solid shafts -Problems.
Types of springs – Laminated and coiled springs and applications -Types of coiled springs – Difference between open and closely coiled helical springs – closely coiled helical spring subjected to an axial load – problems to determine shear stress, deflection, stiffness and resilience of closed coiled helical springs
Text Books:
- Strength of Materials, R. S. Khurmi, S.Chand & Co., Ram Nagar, New Delhi.
- Strength of Materials, S. Ramamrutham, 15 Edn 2004, DhanpatRai Pub. Co., New Delhi.
Reference Books:
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For detail syllabus of all other subjects of BE Agriculture, M scheme do visit Agriculture 3rd Sem syllabus for M scheme.
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