Material science and Metallurgy Lecture 5.pptx
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The document discusses the structure of materials in material science and metallurgy, focusing on concepts such as crystal structure, Bravais lattices, and atomic packing factors. It explains the geometric concept of a space lattice as a three-dimensional pattern of points, where unit cells are defined by crystallographic axes. Additionally, it highlights that there are 14 distinct arrangements of lattice points known as Bravais lattices which underpin the actual structures observed in crystals.
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WIRELESS COMMUNICATION SECURITY AND ITS PROTECTION METHODSsamueljackson3773
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In this paper, the author discusses the concerns of using various wireless communications and how to use
them safely. The author also discusses the future of the wireless industry, wireless communication
security, protection methods, and techniques that could help organizations establish a secure wireless
connection with their employees. The author also discusses other essential factors to learn and note when
manufacturing, selling, or using wireless networks and wireless communication systems. Deep Learning for Natural Language Processing_FDP on 16 June 2025 MITS.pptx
Deep Learning for Natural Language Processing_FDP on 16 June 2025 MITS.pptxresming1
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This gives an introduction to how NLP has evolved from the time of World War II till this date through the advances in approaches, architectures and word representations. From rule based approaches, it advanced to statistical approaches. from traditional machine learning algorithms it advanced to deep neural network architectures. Deep neural architectures include recurrent neural networks, long short term memory, gated recurrent units, seq2seq models, encoder decoder models, transformer architecture, upto large language models and vision language models which are multimodal in nature.362 Alec Data Center Solutions-Slysium Data Center-AUH-Glands & Lugs, Simplex...
362 Alec Data Center Solutions-Slysium Data Center-AUH-Glands & Lugs, Simplex...djiceramil
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submittalPavement and its types, Application of rigid and Flexible Pavements
Pavement and its types, Application of rigid and Flexible PavementsSakthivel M
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Pavement and its types, Application of rigid and Flexible Pavements20CE601- DESIGN OF STEEL STRUCTURES ,INTRODUCTION AND ALLOWABLE STRESS DESIGN
20CE601- DESIGN OF STEEL STRUCTURES ,INTRODUCTION AND ALLOWABLE STRESS DESIGNgowthamvicky1
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Understand concepts of limit state and working stress method of design of structural steel members and various types of connections.
Determine net area and effective sections in tension members, tension splices, lug angles and gussets.
Execute design of compression members as per IS codal practice.
Analyze concepts of design of flexural members.
Design structural systems such as roof trusses, gantry girders as per provisions of IS 800 2007 of practice for limit state method.
OUTCOMES:
On successful completion of this course, the students will be able to,
Analyze different types of bolted and welded connections.
Develop skills to design tension members, splices, lug angles and gussets.
Elaborate IS Code design practice of various compression members.
Design laterally supported and unsupported beams, built-up beams, plate girders and stiffeners.
Acquire knowledge about components of industrial structures, Gantry girders and roof trusses.
TEXT BOOKS:
1. Bhavikatti S S, Design of Steel Structures, By Limit State Method as per IS: 800 2007, IK International Publishing House Pvt. Ltd., 2019.
2. Subramanian N, Design of Steel Structures, Oxford University Press 2011.
REFERENCE BOOKS:
1. Duggal S K, Limit State Design of Steel Structures, Tata, McGraw Hill Education Pvt. Ltd., New Delhi, 2017.
2. Shiyekar M R, Limit State Design in Structural Steel, PHI Learning Private Limited, New Delhi, 2013.
3. IS: 800 2007, IS: 800 1984, General Construction in Steel Code of Practice, BIS, New Delhi.
Structural steel types Mechanical Properties of structural steel- Indian structural steel products- Steps involved in the Deign Process -Steel Structural systems and their Elements- -Type of Loads on Structures and Load combinations- Code of practices, Loading standards and Specifications - Concept of Allowable Stress Method, and Limit State Design Methods for Steel structures-Relative advantages and Limitations-Strengths and Serviceability Limit states.
Allowable stresses as per IS 800 section 11 -Concepts of Allowable stress design for bending and Shear Check for Elastic deflection-Calculation of moment carrying capacity Design of Laterally supported Solid Hot Rolled section beams-Allowable stress deign of Angle Tension and Compression Members and estimation of axial load carrying capacity.
Type of Fasteners- Bolts Pins and welds- Types of simple bolted and welded connections Relative advantages and Limitations-Modes of failure-the concept of Shear lag-efficiency of joints- Axially loaded bolted connections for Plates and Angle Members using bearing type bolts Prying forces and Hanger connection Design of Slip critical connections with High strength Friction Grip bolts.- Design of joints for combined shear and Tension- Eccentrically Loaded Bolted Bracket Connections- Welds-symbols and specifications- Effective area of welds-Fillet and but Welded connections-Axially Loaded connections for Plate and angle truss members andProposal for folders structure division in projects.pdf
Proposal for folders structure division in projects.pdfMohamed Ahmed
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Proposal for folders structure division in projectsAd
Material science and Metallurgy Lecture 5.pptx
- 1. Material Science and Metallurgy Chapter 01:Structure of Materials Presented By: Dr.S.D.Patil Associate Professor, Department of Mechanical Engineering
- 2. Crystal Structure Crystal Structure and Bravais lattice Atomic Packing Factor
- 5. The crystal structures observed in solids are described in terms of an idealized geometric concept called a space lattice. Space lattice is a three dimensional pattern of points in space. This is also called point lattice and shown in figure. The point in the space lattice with identical surroundings are called lattice points.
- 8. Unit cells are described by three vectors a, b and c drawn from one corner of the cell. These vectors define the cell and are called crystallographic axes of the cell. They may also be described in terms of their lengths (a, b,c) and the angles between them (留,硫,粒). These lengths and angles are lattice constant or lattice parameters of unit cell.
- 9. Review (example with square lattice) Lattice: square, with chosen primitive translation vectors 1ヌ, 2μ (u1 and u2 are integers); remember, the lattice is a mathematical mesh of points on space Basis: blue circle (located at (0,0)) + yellow oval (located at (a/2,a/2)); basis coordinates are found by identifying repeating unit cell, setting one corner of the cell as (0,0), and finding the fractional coordinate of the other atom(s) in the basis in terms of the chosen primitive translation vectors Unit cell=lattice+ basis; repeating unit in crystal Last lecture we discussed the primitive cell which is a property of the lattice (mathematical construct). The unit cell is a building block of a crystal
- 11. Lattice point can be arranged in only 14 different arrangements (arrays) called as Bravais lattices. The actual crystal structures will be similar to these 14 bravais lattices and can be obtained by assuming atoms or group of atoms at the position of lattice points.