Here, the fully three dimensional stress state is examined. This course explores the topic of solid objects subjected to stress and strain. Buy nptel course dvds by iits and iisc, prepare for gate. Cosmolearning is a free educational website for students and teachers. Lecture summaries are also available for the first half of the. Todays learning outcome is to describe a procedure for finding the principal stresses and principal planes on a 3d state of stress by solving the eigenvalue problem. The force f is acting on the surface over an area da of the surface. Iesese engineering engineering services examination is conducted by upsc. Extension of failure envelope ed backward intersects the xaxis at f on the negative side of origin o. Video lesson mechanical engineering strength of materials video lecture training, list videos, quiz, materials, useful links, documents and discussions for mechanical engineering strength of materials video lecture training.
This notes are best for strength of material subject. Mechanical engineering advanced strength of materials nptel. Nptel provides elearning through online web and video courses various streams. If i have a really big multigigabyte video file produced by premiere pro, involving a few images and audio, how can i make the video a.
Mohr circle and principal and shear stress duration. Spend time on studying, not for searching material to study. Strength of materials 1 pdf notes sm 1 pdf notes file to download are listed below please sm i check it. Tutorial homework problems are developed for each course to support the problem solving techniques specific for that course. Ies video lectures get high quality video lectures, tutorials for ies preparation that includes video lectures for mechanical, electronics, civil, and electrical engineering. Civil engineering free online courses free video lectures. Mohrs circle explanation in detail in simple languagr. A semigraphical procedure using mohrs circle in geotechnical engineering 63 steps for the construction and use of mohrs circle geotech y for the given state of plane stress. Draw the circle passing throughx on the t s coordinate system.
Mechanical engineering strength of materials nptel. Application of the mohrcircle construction to problems of. Ppt mohr circle powerpoint presentation free to view. The goal of this site is presently to help the undergraduates pursuing b.
Download nptel video lectures mp4 flv without going through nptel website. Elastic constants and strain energy densities recap of lectures 1 to 11. Mohrs circle are categorized into six cases, depend on the sign of shear stress and which normal stress is larger. Theories of failure memorial university of newfoundland. Introduction free body diagram revisited normal, shear and bearing stress stress on inclined planes under axial loading strain mechanical properties of materials true. Note the equations are given here in the s1s2 plane, where s1 is greater than s2. So in our further lectures what we try to look into is that how further we discuss. Mohrs circle explanation in detail in simple languagr closed ask question asked 2 years, 8 months ago. Civil engineering encompasses all those work that involves construction, maintenance and innovative design of different aspects and things like bridges, canals, buildings and more.
Someone please explain me mohrs circle in detail in a simple language. Autoplay when autoplay is enabled, a suggested video will automatically play next. This video lecture will introduce you to concepts of principal stress, principal plane and mohrs circle analysis. In our video lectures, we will take you through the different steps which are involved in civil engineering. Here are a few examples of answer entry in masteringengineering beyond numerical input. Elastic, inelastic, plastic and viscoelastic material. Stress transformation and mohrs circle for stresses. Learn for free, pay a small fee for exam and get a certificate. It has numerous applications in the field of construction engineering. He also developed the graphical technique for drawing the circle in 1882. Blogging about nptel, digimat digital learning platform, nix operating systems and freeopen source software. Mohrs circle and mohrs circle analysis and how to identify a pole and the.
The best way to download any youtube playlist is via youtubedl command prompt utility. Ed is the failure envelope tangential to mohrs circle at d with an angle. Tutorial homework problems educator features mastering. Strength of material som notes free pdf download strength of material notes by prof. Then the stress is defined as the intensity with which the. In this tutorial, the tutor explains different types of stresses and strains acting on various construction materials.
You can download this utility from this link downloads 2017. A significant portion of this course was taught at the blackboard, so the following lecture notes are not intended to fully capture the content of the course. You can find most of the materialsnotes related to civil engineering. Nptel, online courses and certification, learn for free. Means department of geological sciences, state university of new york at albany, 1400. The lecture notes tend to be more detailed in the second half of the course. Mohrs stress circle watch more videos at lecture by. Now taking this as centre and ob or oa as radius if we plot the circle, eventually we are going to get the mohr s circle. For the most part, the discussion was confined to twodimensional states of stress.
There will be some repetition of the earlier analyses. Stress transformation and mohrs circle for stresses 1. Nptel online certification courses since 20, through an online portal, 4, 8, or 12week online courses, typically on topics relevant to students in all years of higher education along with basic core courses in sciences and humanities with exposure to relevant tools and technologies, are being offered. And so, we looked at the 3d state of stress early in the course. Download nptel video lectures mp4 flv without going. Sound hi, this is module 26 of mechanics of materials i. Maiti department of mechanical engineering iit bombay for more details on nptel visit. It is a graphical method to determine normal, tangential and resultant stresses on any oblique planes and position and magnitude of principal stresses. Nptel video lecture topics for mechanical engineering new no. Up next lectue 23 construction of mohr s circle duration.
Stress concentrations, mohrs circle for plane strain, and measuring strainsin this section, we will learn about stress concentrations, and discuss plane strain, develop mohrs circle for plane strain, and explore methods of measuring strain. You can complete mohrs circle answer questions on a computer. Nptel video lectures, iit video lectures online, nptel youtube lectures, free video lectures, nptel online courses, youtube iit videos nptel courses. Theories of failure maximum shear stress theory to use this theory for either two or threedimensional static stress in homogeneous, isotopic, ductile materials, first compute the three principal stresses 1, 2, 3 and the maximum shear stress as 12 max 2 max min 2 pp then compare the maximum shear stress to the failure criterion. Som principal stress mohr circle lecture 4 youtube. Strength of materials 2 pdf notes sm 2 pdf notes file to download are listed below strength of materials 2 notes pdf sm 2 notes pdf. Select toggle helper to showhide keyboard instructions below the canvas in a mohrs circle question, youll be asked either to draw a mohrs circle on a graph to show stressstrain or to analyze a mohrs circle by marking points along the circumference of.
Proone is a product from that helps in the preparation of technical competitive exams such as gate, ies, drdo, barc, jto, etc. Mohr circle video tutorials video lecture for mohr circle. Soil mechanics free online course video tutorial by iit bombay. Mohrs circle equation the circle with that equation is called a mohrs circle, named after the german civil engineer otto mohr. Mohrs circle is a geometric representation of the 2d transformation of stresses and is very useful to perform quick and efficient estimations, checks of more extensive work, and other such uses. This section provides information about lecture topics, lecture notes, and lecture summaries. Syllabus of amie exams section b, mechanical engineering. Application of the mohrcircle construction to problems of inhomogeneous deformation w. Soil mechanics online course video lectures by iit bombay. Up next mohr circle and principal and shear stress duration. Radius of mohrs circle is equal to the maximum shear stress. Gate mechanical engineering strength of materials video.
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