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Topic: Tensile test

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  Tensile Properties
A tensile test is a fundamental mechanical test where a carefully prepared specimen is loaded in a very controlled manner while measuring the applied load and the elongation of the specimen over some distance.
Tensile tests are used to determine the modulus of elasticity, elastic limit, elongation, proportional limit, reduction in area, tensile strength, yield point, yield strength and other tensile properties.
From this point on in the tensile test, some permanent deformation occurs in the specimen and the material is said to react plastically to any further increase in load or stress.
www.ndt-ed.org /EducationResources/CommunityCollege/Materials/Mechanical/Tensile.htm   (1988 words)

 The Ductile Iron News - New Developments in Sand Testing
Tensile strength has been the conventional test used to control the strength characteristics of the sand, but the tensile strength test is quite variable as far as repeatability, and is not sensitive enough to humidity which can cause deterioration of cores.
In this test, two standard test specimens are rotated in a screen for one minute, and the weight percent of sand that abrades from the surface is measured.
This test is very similar to the old mold permeability test, except that the readings are the reverse (dense molds have lower permeabilities), and the MQI package is more portable and uses more modern technology including a digital readout.
www.ductile.org /magazine/2002_2/sandtesting.htm   (3520 words)

 FHI - Chapter 5: Standards, Specifications and Tests
Thus, the sample used for tensile testing would not be expected to deteriorate as much as the condom tip, which is not protected within the roll.
Also, the tensile test measures the condom in an area and direction that are not the most critical to condom performance during use.
For example, in the leakage test, in a group of 315 condoms selected for testing from a batch of 150,001 to 500,000 manufactured condoms (a standard test size), a 0.40 AQL allows acceptance of the entire batch if three condoms fail the test; if four fail, the entire batch is rejected.
www.fhi.org /en/RH/Pubs/booksReports/latexcondom/standspectests.htm   (3691 words)

 Tensile stress - Wikipedia, the free encyclopedia
Tensile stress (or tension) is the stress state leading to expansion; that is, the length of a material tends to increase in the tensile direction.
In the uniaxial manner of tension, tensile stress is induced by pulling forces across a bar, specimen, etc. Tensile stress is the opposite of compressive stress.
Tensile stress may be increased until the reach of tensile strength, namely the limit state of stress.
en.wikipedia.org /wiki/Tensile_stress   (303 words)

 Tensile Testing Tension Testing Tensile Test Tension Test   (Site not responding. Last check: 2007-10-29)
A tensile test, also known as tension test, is probably the most fundamental type of mechanical test you can perform on material.
Tensile tests are simple, relatively inexpensive, and fully standardized.
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.
www.instron.com /wa/applications/test_types/tension/default.aspx   (763 words)

 Materials Testing Service: Material Tests
Split Tensile strength is a measure of a material's ability to resist a diametric compressive force.
This test is usually used in accordance to masonry or concrete testing and is very similar to the tensile strength to metallic materials and plastics.
This test is used to evaluate the shear resistance of the cementitious material.
fp.uni.edu /rrttc/mts/C-Split-tensile.asp   (299 words)

 tensile testing, failure analyses, tensile test experts,
Tensile properties are one of the most important aspect of qualifying a compound or plastic resin.
Tensile testing is defined as determining the force required to elongate the specimen and recording how much the material has elongated until it breaks (failure).
Another aspect of tensile testing is Modulus (elastic) which is the ratio of the applied stress to the strain it produces in the region in which strain is linearly proportional to stress.
www.crtlabs.com /tensile_testing.html   (188 words)

 [No title]
The test is used to directly or indirectly measure the most important material properties such as yield strength, tensile strength, elastic modulus, elongation, resilience, and toughness.
In this test, a prepared material sample (i.e., a specimen) is axially loaded in tension, and it is pulled until it fractures.
When the screen asks to return the crosshead of the tensile testing machine to initial position Click “CANCEL” (we do not want the crosshead to go back because the specimen is elongated now and as we return the crosshead it might cause damage).
comp.uark.edu /~szhang1/Exp1-tensiletesting.doc   (1556 words)

 Tensile Test Plastics ASTM D 638 D 882 D 1708┬áISO 527   (Site not responding. Last check: 2007-10-29)
Tensile tests measure the force required to break a specimen and the extent to which the specimen stretches or elongates to that breaking point.
Tensile tests produce a stress-strain diagram, which is used to determine tensile modulus.
Standard test fixtures are installed inside the chamber, and testing is conducted inside the controlled thermal environment the same as it would be at ambient temperature.
www.ptli.com /testlopedia/tests/tensile-plastics-D882.asp   (349 words)

 SUPERPAVE Indirect Tensile Test - Equipment - Bituminous Mixtures Laboratory (BML) - Labs - Research - Asphalt - ...
The Superpave Indirect Tensile Test (IDT) is used to determine the creep compliances and indirect tensile strengths of asphalt mixtures at low and intermediate pavement temperatures.
Indirect tensile strengths at temperatures in the range of -10 to 30°C are used for fatigue cracking analyses.
The indirect tensile strength of the specimen for thermal cracking analyses is determined by applying a load at a rate of 12.5 mm per minute of crosshead movement until the load starts to decrease because of specimen failure.
www.fhwa.dot.gov /pavement/asphalt/labs/mixtures/idt.cfm   (724 words)

 Welcome to EPCO Products
The tensile strength of the 304 and 316 series stainless steel used in the production of these products is an important consideration for designers when selecting what style, diameter and material that is used in their product.
The tests were done on a straight pull tensile test (Figures 1 and 2 Tensile Test), an edge pull (Figures 3 and 4 Edge Pull) and a side pull (Figures 5 and 6 Side Pull).
Fixtures for each series of tests were fabricated at the university to accommodate tensile, side pull, and edge pull on the bow eyes.
www.epcomarineproducts.com /tensile_test.asp?nav=aboutprod   (283 words)

 MatWeb - The Online Materials Information Resource   (Site not responding. Last check: 2007-10-29)
The ability of a material to resist breaking under tensile stress is one of the most important and widely measured properties of plastics used in structural applications.
The tensile testing machine pulls the sample from both ends and measures the force required to pull the specimen apart and how much the sample stretches before breaking.
The tensile modulus is the ratio of stress to elastic strain.
www.matweb.com /measurements/tensilestrength.htm   (372 words)

 DoITPoMS TLP - Crystallinity in polymers - Tensile testing   (Site not responding. Last check: 2007-10-29)
After the sample has failed and the test is complete the data is transferred to a computer, where it can be treated and presented as a stress-strain curve.
The test is performed at different strain rates in order to demonstrate the time-dependence of the sample's behaviour.
No cold drawing is observed at the higher strain rate as it is not slow enough for the polymer chains within the sample to disentangle and reorganise themselves parallel to the direction of applied stress; at the lower strain rate there is enough time for cold drawing to occur.
www.doitpoms.ac.uk /tlplib/polymers/tensile-testing.php   (523 words)

 Alloy, Metal Terminology (T)
Usually measured by placing a standard test piece in the jaws of a tensile machine, gradually separating the jaws, and measuring the stretching force necessary to break the test piece.
Tensile strength is commonly expressed as pounds (or tons) per square inch of original cross section.
The percentage of tin is usually kept as low as possible because of its high cost; however, about 15% is normally necessary in order to obtain proper coating of the steel, since pure lead does not alloy with iron and some surface alloying is necessary for proper adhesion.
www.metal-mart.com /Dictionary/dictlett.htm   (1388 words)

 [No title]
Test data can easily be exported to other programs that accept comma delimited files with the click of a button.
As an example if a particular test result had a value that was higher than its corresponding limit, the out of tolerance condition would be flagged as Fail: XX+ in the gate column of the result table (XX is a two letter abbreviaton for the test result).
To see a bar chart or histogram of specific data move the cusor to the column containing the desired data (eg Peak Force), click on the starting row of the data and drag the cursor down until all the desired data is highlighted and release the mouse button.
www.benztesters.com /software/tensile/index.html   (3712 words)

 Tensile Testers - Universal Testing Machines - from Benz
Test data is easily exported to most word processing, spreadsheet and SPC software.
A wide range of testing capabilties are possible including tensile, elongation, compression, shear, peel, flexural, and proof of load for most materials and components.
In addition to tensile testing, Benz tensile testers test tear strength, peel strength, adhesion, coefficient of friction, burst, proofload, stress relaxation and custom tests.
www.benztesters.com /tt2100.htm   (897 words)

 Engineering - Irvin Test Capabilities - Irvin Aerospace, North America   (Site not responding. Last check: 2007-10-29)
If tests are outside of our in-house capabilities we are located close to many mature test houses and test facilities and enjoy excellent long-term relationships with the operators.
Our tensile test machines are fully computer controlled and provide high quality data in a digital format.
We have designed and built full-fidelity models and drop test rigs to ensure our designs are put through their paces before our customers entrust their products to them.
www.airbornesystems-na.com /flighttesting.html   (607 words)

 Tensile Test   (Site not responding. Last check: 2007-10-29)
Testing or experimentation is part of the scientific method, to verify or falsify an already formed expectation with an observation.
In education, a test is used to measure students' performance, knowledge or skills.
The River Test is a river in Hampshire, England.
www.relativeaccess.com /File/19662-Tensile.Test.Html   (408 words)

 Tensile Test Equipment at Data Weighing Systems, Inc.
For the fixed, large scale tensile testing operation, the Dillon DTM System II is a powerful piece of equipment.
There are three things that high and low capacity tensile testing machines have in common at Data Weigh.
Finally, the third common factor for tensile testing equipment of all capacity ranges is the Data Weighing Systems support, calibration and repair staff.
www.dataweigh.com /search/tensile_test.asp   (386 words)

 Introduction to the Tensile Test
The tensile test is probably the simplest and most widely used test to characterize the mechanical properties of a material.
Usually the cross-section of the truss members are determined by using the moduli and yield strength obtained from tensile tests, requiring that all members behave elastically and not deflect by significant amounts.
In this tutorial we will describe the tensile test, the material moduli and other strength properties that can be obtained from the results of the test, the classification of material behavior, and load measurement using the load cell.
www.shodor.org /~jingersoll/weave/tutorial/node1.html   (318 words)

 Tensilkut Product Line: Tensilkut machines, lathes and other Tensile Test Sample Preparation Equipment
The ideal tensile specimen should duplicate the pure basic metal or plastic being tested with a total absence of tool marks, incipient cracks, induced stresses, internal deformation or heat distortion.
Templates for the most common metal and non-metallic physical test specimens, including tensile, flexural, tensile-impact and compression standards, are in stock for quick delivery; others are made to order.
To prepare a test specimen, a rough sheared or sawn strip is inserted into the template between the upper and lower guide bars and is not removed from the template until both sides of the specimen are completely machined, reducing the possibility of operator error.
www.tensilkut.com /products.htm   (1894 words)

 Tensilkut CNC machines, lathes and other Tensile Sample Preparation machines.
A test specimen is the most important component of tensile testing, for it determines the actual physical properties of the metal or plastic being tested.
The physical test specimen must conform to exacting dimensions and must be free of induced cold working or heat distortion.
Qualified laboratory personnel and accurately calibrated universal testing machines are important, but the ultimate tensile test results are based on the quality and accuracy of the test specimen.
www.tensilkut.com   (171 words)

 VSR technologies - Suppliers of Custom Assembly and Test Systems
Ample Test Space - With a crosshead stroke of 38 inches (also available with up to 60 inches of stroke), there is plenty of room for parts and fixtures.
Tensile and Loop Load Fixtures - Our tester comes with fixtures for performing standard tensile strength or loop load tests on seatbelt retractors.
Instructions and pictures of test setups can be shown to an operator before a test is started.
www.vsrtech.com /products-restraint-tensile.htm   (214 words)

 Untitled Document
The tensile test of a standard ASTM steel specimen to failure provides the important basic properties of steel, viz., the proportional (or elastic limit) of the material, the yield stress, the ultimate stress, the elongation (strain) and the material stiffness (Young's modulus of elasticity.
To examine the behavior of mild steel tested to failure in tension.
Incomparison to the tensile test of steel, we ran a tensile test on Polyethylene Hi-Density plastic.
civilx.unm.edu /laboratories_ss/mechmat/tensilesteel.html   (681 words)

 Tensile Testing — Industries Served, Cleveland, Ohio
Casting houses rely on Tensile Testing's expertise in sectioning and specimen preparation to complement required analytical methods for castings that are utilized in the automotive, aerospace and general manufacturing business sectors.
Tensile Testing also has the capability to provide small lot laboratory-oriented heat treatment of materials and specimens.
Commercial and captive laboratories that may not possess an extensive array of test equipment, not have "in-house" specimen fabrication capabilities and/or be facing an overflow of testing/under-capacity situation recognize Tensile Testing's commitment to high quality, cost-effective and timely service to meet their own clients' needs.
www.tensile.com /industries.asp   (1260 words)

 Materials Testing | Mechanical Materials Testing | Tensile Testing Equipment
MTI Electromechanical Universal Testing Machine Systems are offered in ten standard capacities ranging from 5 kN to 450 kN (1,000 pounds to 100,000 pounds) force.
A PHOENIX Reconstruction to create a state-of-the-art Universal Testing Machine from your old load frame might be an attractive alternative to the purchase of a new system.
Testing Fixtures of all required types are available.
www.mti-atlanta.com   (205 words)

 Tension Test   (Site not responding. Last check: 2007-10-29)
Data from test are used to determine elastic limit, elongation, modulus of elasticity, proportional limit, reduction in area, tensile strength, yield point, Yield Strength and other tensile properties.
Procedures for tension tests of metals are given in ASTM E-8.
Methods for tension tests of plastics are outlined in ASTM D-638, ASTM D-2289 (high strain rates), and ASTM D-882 (thin sheets).
www.instron.com /wa/resourcecenter/glossaryterm.aspx?ID=164   (111 words)

The crosshead is extended on both sides to have 2 testing spaces for accommodating 2 different load sensors with different set of grips.
The facility of controlling the test via Computer with online force v/s elongation graph is also available with data analysis and report printout facility, tension, compression, cyclic and stress relaxation test can be carried very effectively using extremely powerful interactive software, which makes the machine versatile.
Micro controller based electro-mechanical testing machines suitable for carrying out tensile test on variety of materials such as yarns, fabrics, Lea, Elastomers, papers, wires, etc. Various models are available up to 500 Kg.
www.samdani.com /electronics/index_files/tensiletesterEM.htm   (277 words)

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