The samples were cylindrical in cross section, with a reduced gage. Just provide the specification you are looking to test to and we will take care of the rest. Ametek stc supply a wide range of tensile testers under the chatillon and lloyd instruments brands. The data produced in a tensile test can be used in many ways including. Mechanical and physical testing of biocomposites, fibrereinforced composites and hybrid composites, 2019. Department of civil and construction engineering strength.
The experienced production staff works to designated. The important part of the specimen is the gage section. Strength and testing of materials engr211204 uploaded by. This manual has the current versions of our laboratory test procedures. Universal testing machine for mechanical properties of. Concepts the linear relationship is hookes law that represents elastic deformation. Instron manufactures tensile, compression, fatigue, impact, rheology, and structural testing machines, testing a variety of materials and range of applications. Tensile testing of composites is generally in the form of basic tension or flatsandwich tension testing in accordance with standards such as iso 5274, iso 5275, astm d 638, astm d 3039, and astm c 297. This lab introduces the uniaxial tensile test to determine the basic mechanical properties of a material. The tensile testing laboratory was conducted using an instron load frame and the bluehill data acquisition software. Tensile testing is a destructive mechanical testing method that subjects a sample to uniaxial tension until failure. Each group will test either 3 cubes or cylinders while one specimen will be cast extra.
By comparing the values of the two metals we can see that mild steel has higher values in all of the three properties which. Testing equipment manufacturers united testing systems. Example long laboratory report mechanical properties of 1018. Over 50 years of premier universal test machines utms united is a leading manufacturer of universal test machines, hardness testers and accessories i n business for over 50years, united has become one of the worlds premier manufacturers of stateoftheart material testing systems, also known as universal test. Tensile testing is an important materials test to select a specific material for an application, for quality control, and to predict how a material. Pdf welcome to the exciting world of experimenting on the strength of materials. Tensile testing of steel see web for typical report format including. The testing machine can be used for tensilecompressive test, torsion test, bend flexural test, and also for high temperature tensile tests. Example long laboratory report mechanical properties. Tensile testing is a destructive test process that provides information about the tensile strength, yield strength, and ductility of the metallic material. Abstract tensile test method for the determining of the. The test will be conducted in accordance with the standards specified by the american society for testing and materials astm.
Tensile testing is an effective way to investigate the mechanical properties of materials and it is a well established technique for bulk sample characterization. During the course of the tensile load application the computer will monitor. Uniaxial tension and compression testing of materials. To conduct a tensile test on a mild steel specimen. For most tensile testing of materials, you will notice that in the initial portion of the test, the relationship between the applied force, or load, and the elongation the specimen exhibits is linear. Do not remove specimens from abrasive cutoff machine until the wheel has stopped. The tensile test is most applied one, of all mechanical tests. Furthermore, splitting tensile strength test on concrete cylinder is a method to determine the tensile strength of concrete. For me lab i, you will usually report your values as mean. As you continue to pull on the material until it breaks, you obtain a complete tensile profile with a stress strain curve showing how it reacted to the forces being applied. Tensile testing download ebook pdf, epub, tuebl, mobi. The amount of force f applied to the sample and the elongation. A universal testing machine utm, also known as a universal tester, materials testing machine or materials test frame, is used to test the tensile strength and compressive strength of materials. To study the various component parts of the universal testing machine u.
Principles of hardness testing comparison of different hardness techniques lab 2 3. The mechanics of materials laboratory manual is written to describe the. In the material testing laboratory, tensile test was done on a mild steel. Mahatma gandhi missions laboratory manual jawaharlal. Find the tensile tester that matches your need here. This test is a destructive method, in which a specimen of a standard shape and dimensions prepared according to astm d 638. It is named after the fact that it can perform many standard tensile and compression tests on materials, components, and structures. If you miss a lab, you will have to do the experiment separately and write the report separately too. This provides valuable information about materials including ultimate tensile strength, yield strength, elongation and reduction in area.
Experiment 4 testing of materials in tension object. The tensile test data are characterized by terminology shown in figure 41. By doing this, tensile tests determine how strong a material is and how much it can elongate. The various experimental lab manual of strength of material is listed in this strength of material. The test unit will be introduced in the laboratory before the experiment by the relevant assistant. Rockwell diamond cone of vertex angle 120o and tip radius 0. In this linear region, the line obeys the relationship defined as hookes law where the ratio of stress to strain is a constant.
This test is a destructive method, in which a specimen of a standard shape and dimensions prepared according to astm d 638tandard test method for tensile properties of. Detailed steps required to check ultimate tensile strength using universal testing machine of any specimen, 2. Strength of materials list of practical 1 tostudy the universal testing machine u. After testing one sample of each material, a second round of tensile tests were performed on both. Compression strength test for moulding sand 4601 02 shear strength test for moulding sand 78 03 tensile strength test of core sand 912 04 permeability test 16 05 core hardness and mould hardness test 1706 sieve analysis to find grain fineness number of base sand 1820 07 clay content test 2122 partb foundry 01 solid pattern 3839 02. Consider the typical tensile specimen shown in fig. Strength of materials lab manual pdf sm lab manual pdf.
The basic idea of a tensile test is to place a sample of a material between two fixtures called grips which clamp the material. Tensile testing metallurgical laboratory is a complete independent laboratory for all your machining and testing needs. The main focus of this lab is on the plastic properties of the material. Experiment one 1 tensile stress testing introduction the purpose of this experiment is to apply a tensile force to a test specimen until the specimen is pulled to failure. With the advancement and continuing integration of composite materials and technology in todays modern industries, research in this field is becoming more and more significant. We then begin to apply weight to the material gripped at one end while the other end is fixed. Tensile test of brittle and ductile metals clockhouse. The procedure based on the astm c496 standard test method of cylindrical concrete specimen which similar to other codes lik is 5816 1999. You can learn a lot about a material from tensile testing. The investigation reported herein describes the development of a hollow cylinder testing device and an indirect tensile testing device and the feasibility of using this equipment for determining the tensile. The test is carried out at ambient temperature between 10cand 35 c, unless otherwise specified. In the tension test a specimen is subjected to a continually increasing uniaxial tensile force while simultaneous observations are made of the elongation of the specimen. Tensile, shear and compression tests of metallic and non metallic.
Tensile properties for plastics, polymers and steels are very sensitive to testing rates, but alu. Lab 3 tension test objectives concepts background experimental procedure report requirements discussion objectives experimentally determine the yield strength, tensile strength, and modules of elasticity and ductility of given materials. Cast iron rockwell b test brinell 10500 hardness test average 96. The rate at which a test is performed can have a significant effect on tensile properties. The material test curves have a region where the deformation caused by the stress is elastic, or not permanent. In addition, this data will be used to solve several mechanics problems. The data used for this lab report was not gathered from the student run experiments, but rather from standardized testing performed by the laboratory professor, to ensure accurate and consistent results. The object of this experiment is to measure the tensile properties of two polymeric materials, steel and aluminum at a constant strain rate on the tension testing machine. The material has known dimensions, like length and crosssectional area.
Direct tensile strength of intact rock core specimens d 3936 splitting tensile strength of intact core brazilian test d 3967 direct shear laboratory direct shear strength tests rock specimens, under constant normal stress d 5607 permeability permeability of rocks by. The tensile test of the geogrid is the most important test of this product. These resistances come due to atomic bonding between atoms of the material. Charpy test, izod test 6 to determine modulus of elasticity of beam simply supported at ends. Our tensile testing services allow us to deliver critical information relating to the strength, stiffness, and ductility of materials in line with your production requirements and business needs. Nov 02, 2009 for safe design of these components, there ultimate tensile strength and ductility one to be determine before actual use. However, if a test was identical to an aashto, ast, or mftp procedure it was not m duplicated in this manual. Ahmed taimah amrith senaratne jacob delisle justin mallory nour dowedar tristan grigg 8847509 8607778 8582241 8922240 8592374 8620307 group 2 team 8 experiment date. Lab manual strength of materials me303 mechanical engineering.
Tensile test method for the determining of the structural properties of individual carbon fibers carlton metcalfdoetsch honors mentor. Tensile tests are used to determine how materials will behave under tension load. This means when the stress is removed the specimen returns to its original length. Tensile testing of metals is a destructive test process that provides information about the tensile strength, yield strength and ductility of the material. Material for rockwell b test load, kgf for rockwell c test load, kgf 1. Tensile testing and hardness testing of various metals. These tests have been selected to illustrate the basic properties and methods of testing of concrete and steel. Each group will test 1 beam specimen while remaining one specimen will be cast extra. Strength can have many meanings, so let us take a closer look at what is meant by the strength of a material.
A convenient sample geometry for the tensile test is the dogbone geometry figure 1. Beladi, pe mechanics of materials lab p a g e 2 experiment one. Iso 10319 geosyntheticswidewidth tensile test uses widewidth. For safe design of these components, there ultimate tensile strength and ductility one to be determine before actual use. For flexural strength test, 3 beams having size of 100 x 100 x 500 mm will be prepared. Testing and materials test methods or other test specifications, and be sure the correct test speeds, loading profile and calculations are used. Department of civil and construction engineering strength of. Four different materials were tested, including 6061t6 aluminum alloy, a36 hot rolled steel, polymethylmethacrylate pmma, cast acrylic, and polycarbonate.
The tensile test measures the resistance of a material to a static or slowly applied force. Brinell test in a standard brinell test 10 mm diameter hardened steel ball is forced to penetrate the. Tensile testing is accredited to isoiec 17025 a2la and ac7101 nadcap with approvals encompassing the automotive, steel, medical, fastener, welding, and nuclear markets. This edition completely replacesy 201the 9 labofebruarratory manual of test procedures. Beladi, pe mechanics of materials lab p a g e 1 experiment one tensile stress test experiment one 1 tensile stress testing introduction the purpose of this experiment is to apply a tensile force to a test specimen until the specimen is. Splitting tensile strength of cylindrical concrete specimen. Steps to check and record brinell hardness of specimen, 3. Test procedures, sometimes simplified because of time limitation, are mostly those outlined by the american society for testing and materials astm standards. A material when subjected to a tensile load resists the applied load by developing internal resisting force. The most popular methods are brinell, vickers and rockwell hardness tests for metals and alloys.
A stressstrain curve is plotted from the loadelongation. Brass rockwell b test brinell 10500 hardness test average 71. Tensile testing provides data on the integrity and safety of materials, components and products, helping manufacturers ensure that their finished products are fitforpurpose and manufactured to the highest quality. One material property that is widely used and recognized is the strength of a material. To determine tensile strength on a required material mild steel. Using the instron series ix software, the forcedisplacement responses of each of the material at a displacement rate of 15 mmmin were acquired. Conclusion we were able to successfully tensile test aluminium and mild steel using the universal testing machine, from the data obtained we were able to successfully obtain the youngs modulus, ultimate tensile strength and yield stress values of the two metals. A tensile test, also known as a tension test, is one of the most fundamental and common types of mechanical testing. The test involves straining a test piece by tensile force, generally to fracture, for the purpose of determining one or more of the mechanical properties defined in clause 4. While many experimental tests exist to determine the mechanical properties, the simplest is the tension test.
University of ottawa faculty of engineering department of mechanical engineering engineering materials i mcg 2360 laboratory report l1. In this test ends of test piece are fixed into grips connected to a straining device and to a load measuring device. Tensile test experiment materials science and engineering. A technical writeup can be compared with a flower garland whose flowers are figures, graphs, pictures and equations. Determination of the tensile properties of different class of materials lab 1 2. For structural applications of materials such as bridges, pressure vessels, ships. To perform a tensile test of mild steel specimen on 2 universal testing machine. Lab report has to be formal, neatly written on good sheets in legible handwriting. Laboratory testing and interpretation of rock properties.
Conclusion we were able to successfully tensile test. Impact testing of materials charpy impact test lab 2 4. We will look at a very easy experiment that provides lots of information about the strength or the mechanical behavior of a material, called the tensile test. Tension test on the given specimens at least 2 materials for comparison and to plot the stress strain graphs. Lab manual study the utm and perform the tensile test. Ceen 043 behavior and properties of materials laboratory manual and exercises tension testing of metals 3 of calculations and exercises this laboratory contains a set of computations that need to be performed using the data collected from the laboratory experiments. In a simple tensile test, a sample is typically pulled to its breaking point to determine the ultimate tensile strength of the material. The topic of this lab is confined to the tensile property of polymers. During the tensile test pieces can fly out during fracture. We can perform any test that requires a universal testing machine tensile tester.
Tensile properties for plastics, polymers and steels are very sensitive to testing rates, but aluminum alloys exhibit little sensitivity. Tensile specimens and test machines stressstrain curves, including discussionsof elastic versus plastic deformation, yield points, and ductility true stress and strain test methodology and data analysis it should be noted that subsequent chapters contain more detailed information on these topics. Tensile testing, also known as pull testing, is a standard test where a sample is placed in grips and subjected to controlled tension until it fails. A tensile test applies tensile pulling force to a material and measures the specimens response to the stress. Pdf strength of material lab manual irshad ahmad khan. Tensile testing, also known as tension testing, is a fundamental materials science and engineering test in which a sample is subjected to a controlled tension until failure.
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