Introduction to the science and engineering of materials fall 2010 mse. Selection of materials and manufacturing processes towards achieving green engineering. The curves of both as prepared and annealed nanoglass samples are smooth without any popins indicating homogeneous deformation. Properties and applications of engineering materials. In the nineteenth and early twentieth centuries electrical apparatus relied on wood, cotton sleeving, natural waxes and. Materials usually shrink when cooled and expand when heated.
This quick and succint powerpoint slide presentation is useful for teachers. Percolation when a restorative material and the coefficient of thermal expansion of a tooth is mismatched, the restoration will shrink with cold beverages, opening gaps between the restoration and the tooth. Mechanical properties of materials are mentioned below. For materials like clay which soakreadily it is zero, whereas for materials like glass and. We have attempted to make this document complete, accurate, and useful, but we. A sound knowledge of mechanical properties of materials provides. Chapter 6 mechanical properties university of tennessee.
In such situation need to know mechanical properties of materfial so. For the purposes of this code, the basic properties used to define. Aalto university school of engineering department of civil engineering a. Lecture notes electronic and mechanical properties of. Engineering materials and their properties in this chapter materials are classified and the most important properties of the engineering materials are listed with short explanations.
Chapter 2 physical properties of food materials 25. In other words, the properties of materials can be sizedependent. Detailed facilitator notes powerpoint presentation pack including. Ppt properties and selection of engineering materials. When using part or all of the material, users are kindly requested to reference the source. Materials properties mechanical thermal opitcal physical magnetic chemical technological.
Mechanical properties of materials linkedin slideshare. Introduction to composite materials asm international. Lecture 01 mechanical and non mechanical properties of. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that. A materials density, ductility, and malleability are a factor or crystalline. Perhapsthemostnatural test of amaterials mechanical properties is the tensiontest,in which astriporcylinderofthematerial,havinglengthlandcrosssectionalareaa,isanchoredatone end and subjected to an axial load p a load acting along the specimens long. How can we understand and predict electrical, optical and magnetic properties. The size and shape of a raw food material can vary widely. Properties of industrial materials different materials exhibit different working properties.
Mechanical engineers calculate those forces and material scientists how materials deform elongate, compress, twist or break as a function of applied load, time, temperature, and other conditions. Mechanical properties stress strain mechanical properties based on elastic deformation stressstrain diagram modulus of elasticity poissons ratio flexibility resilience. It provides a quick, background overview for teachers and students on the properties. A free powerpoint ppt presentation displayed as a flash slide show on id. Innovative design means the imaginative exploitation of the properties offered by materials. Mechanical properties of dental materials authorstream. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Cive1010 building materials technology 5 cr 121 lecture 1. Mechanical properties of building materials by nauras saiyed asst. The properties of building materials are greatly influenced when saturated.
Physical characteristics of raw, unprocessed, as well as processed food materials include particle size and shape, particle and bulk density, porosity, and surface area. Emphasis on fundamental physical models in lectures application to real life situations. Chemical composition the chemical composition of steel that may be used to manufacture beams and plates for steel structures shall be specified in the paragraph corresponding to the relevant type of steel in section 27. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Types of magnetic materials the orbital and spin motion of of electrons and interaction between these electrons is the origin of magnetism. This ppt explains in brief all the mechanical properties of the building materials. Mechanical and nonmechanical properties of building materials prepared by.
Winner of the standing ovation award for best powerpoint templates from presentations magazine. The unit is appropriate for learners engaged in manufacturing and mechanical engineering, particularly where. A material which regains its original size and shape on removal stress is said to be elastic stress. Mechanical properties i mechanical properties 3 test types how is the response of a material to a f applied measured. Such a material iselastic accordingtothedescription ofelasticity given earlier immediate response,fullrecovery, andit is also linear in its relation between stress and strain or equivalently, force and deformation. Many material properties can be determined from the results of a tensile.
This might be a rather new concept to bring into the classroom as conventionally the properties of a substance solid, liquid or gas are related to the atoms and molecules that make up the substance and the way they are connected to one another chemical bonds. Ounderstand howpropertiesof materialscan be relatedto the characteristics of the material. Accordingly, the properties are measured in stresses usually in kilogramsforce per sq mm kgfmm2 or meganewtons per sq m mn. Mechanical properties of building materials authorstream. Mechanical properties of materials the aggregate of indexes that characterize the resistance of a material to a load acting on it, the degree to which it will deform under the load, and its behavior in the process of failure. Economics what will the finished product properties. Schwaiger group we analyzed the mechanical performance of cu 50 zr 50 metallic nanoglasses. Part i characterization of engineering materials 1 structure of engineering materials 3 1. Mechanicalpropertiesof polymers kamyardavoudi october,20 materialsscienceseminar. This property of the material is known as plasticity.
Mechanical properties in design and manufacturing mechanical properties determine a materials behavior when subjected to mechanical stresses properties include elastic modulus, ductility, hardness, and various measures of strength dilemma. Often materials are subject to forces loads when they are used. Find materials for this course in the pages linked along the left. Materials scientists learn about these mechanical properties by testing materials. In the following slides we will find the key properties which determine how materials behave joseppoch march 07.
Crystals are anisotropic with respect to most properties the growth shape of a well grown crystal has the internal symmetry of the crystal polycrystalline materials or aggregates of crystals may have isotropic properties due to averaging of may randomly oriented grains the properties of a crystal can be drastically altered in the presence of. Determine the previous history and composition of materials. Theory of waves in materials by jeremiah rushchitsky bookboon the book unites the basic theoretical facts of solid mechanics mechanics of materials and mechanics of wave processes. Experimental investigation of mechanical properties of 3d. For example, consider the element of an isotropic material shown in fig. While bet is an opensource program, all material remains wbcsds intellectual property. Physical and mechanical properties of dental materials. They are usually related to the elastic and plastic behaviour of the material. Therefore a hookean material is linear elastic, and materials engineers use these descriptors interchangeably. Ppt properties of materials powerpoint presentation. Determine materials properties and determine their possible uses.
The ratio ofcompressive strength of material saturated with water to that in dry state is known as coefficientof softening and describes the water resistance of materials. Electrical and optical properties as polymer materials have developed, their excellent and sometimes outstanding dielectric properties have guaranteed their widespread use as insulants in electrical and electronic engineering. We found that the hardness and youngs modulus increase for the nanoglasses compared to meltspun ribbons. Bet material download world business council for sustainable. Elastic deformation e is youngs modulusor modulus of elasticity, has the same units as. Mechanical properties and performance of materials samples of engineering materials are subjected to a wide variety of mechanical tests to measure their strength, elastic constants, and other material properties as well as their performance under a variety of actual use conditions and environments. A material which can undergo permanent deformation without rupture aid to be plastic material. Classes of materials materials are grouped into categories or classes based on their chemical composition.
Mechanical properties of materials 1 below in the figure, the net force vs. Material selection is determined by the capabilities and qualities of materials, or their properties. These properties are expressed as functions of stress strain,etc. Physical properties defined properties that define the behavior of materials in response to physical forces other than mechanical components in a product must do more than simply withstand mechanical stresses they must conduct electricity or prevent conduction, allow heat to transfer or allow its escape, transmit. Theoretical models, computational techniques, and results for the elastic constants, presented in.
If you continue browsing the site, you agree to the use of cookies on this website. Mechanicalpropertiesof polymers harvard university. Physical and mechanical properties of materials melting temperature 9 density 10 youngs modulus 11 yield stress and tensile strength 12 fracture toughness environmental resistance 14 uniaxial tensile response of selected metals and polymers 15 iii. A material is isotropic if the properties are independent of direction within the material.
Obe able to make right and wellfounded choice of materials 3. Am2540 strength of materials laboratory course material, iit madras. Emphasis on property measurements in labs using modern stateoftheart tools. Structure of materials the key to its properties a. Deterioration of material properties identify candidate materials 3. To get started finding electronic properties of engineering materials livingston solution manual, you are right to find our website which has a comprehensive collection of manuals listed. Lecture notes for mse 20901 university of virginia. Emphasis on real life examples in hw and recitations how do we measure eom properties. The properties covered here are especially those properties, which are important in manufacturing processes. These properties, today, are largely known and documented in.
602 1065 581 1472 427 341 1079 1466 483 949 1163 648 1009 1076 1519 3 738 1146 951 924 860 541 1260 1247 97 324 1239 864 928 564 533 555 251 1282 408 637 79 637 1171 580 1120 1413