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Laboratory Testing, Inc. Introduces Fatigue Crack Growth Testing - LTI now includes fatigue crack growth testing in its line of mechanical testing services. The test presents resistance of materials to stable crack extension under cyclic loading. Fatigue crack growth testing is performed to the ASTM E647 standard
Laboratory Testing, Inc. Introduces Fatigue Crack Growth Testing

 

NewswireToday - /newswire/ - Hatfield, PA, United States, 2013/07/12 - LTI now includes fatigue crack growth testing in its line of mechanical testing services. The test presents resistance of materials to stable crack extension under cyclic loading. Fatigue crack growth testing is performed to the ASTM E647 standard.

   
 
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Laboratory Testing Inc. (LTI), a full-service materials testing, nondestructive testing and metrology lab, recently introduced fatigue crack growth testing as one of their many mechanical testing services. LTI’s lab performs fatigue crack growth testing, also called da/dN testing, according to the ASTM E647 standard. Constant load, increasing, decreasing and constant delta K, and constant Kmax control methods are offered. The test can be performed at temperatures between -250°F and 400°F and at loads running from 50 lbs. to 55,000 lbs.

The fatigue crack growth test generates a curve displaying the crack growth rate as the cyclic stress intensity factor (delta K) is varied. The test results also provide the data points and a da/dN-dK plot. Additionally, LTI also has the capability of providing customers with threshold and Paris Law values. Laboratory Testing works with customers to provide adaptable testing for specific testing and engineering needs.

The fatigue crack growth test reports the resistance of materials to stable crack extension under cyclic loading. Compact Tension (C(T)) and Middle Tension (M(T)) specimen configurations are supported in a variety of sizes. The M(T) specimen is primarily used for sheet materials, and the C(T) is used for a range of different material forms including sheet, plate, bar and forgings. Starter notches are formed using wire EDM.

Fatigue crack growth rates from the threshold regime to the critical region are typically developed using constant load or K-controlled parameters. The automated fatigue crack growth testing system at LTI uses MTS closed loop servo-hydraulic load frames controlled by FTA ADWin based system. Crack length is monitored using the compliance (FCGR-C) method.

Laboratory Testing Inc. provides fatigue crack growth testing through its Mechanical Testing Department, which also performs fracture toughness, hardness, impact, stress rupture and tensile testing. These other services are accredited by A2LA to ISO/IEC 17025 and by PRI/Nadcap, ensuring accurate and reliable results.

About Laboratory Testing, Inc. (LTI)

Laboratory Testing Inc. (labtesting.com) of Hatfield, PA is an independent testing and metrology laboratory in business since 1984. The laboratory offers materials testing and analysis services including mechanical, chemical, metallurgical and corrosion testing, nondestructive testing, root cause failure analysis, as well as calibration services, dimensional inspection, test specimen machining and certified reporting of results. The laboratory specializes in metal and polymer testing, but also analyzes powdered metals, ores, ferroalloys, composites and ceramics. LTI is accredited by PRI/Nadcap in materials and nondestructive testing and accredited by A2LA to ANS/ISO/IEC 17025 for mechanical, metallurgical and chemical testing, dimensional inspection and calibration services. LTI Metrology, a division of Laboratory Testing Inc., provides dimensional inspection and NIST-traceable calibration services for measuring hand tools, masters and a wide-range of measuring instruments and equipment. On-site calibration, repairs, new instruments and replacement parts are offered.

 
 
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Written by / Agency / Source: Laboratory Testing, Inc. (LTI)

 
 

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Laboratory Testing, Inc. Introduces Fatigue Crack Growth Testing

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Publisher Contact: Sharon Bentzley - LabTesting.com 
800-219-9095 sbentzley[.]labtesting.com
 
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IMPORTANT INFORMATION: Issuance, publication or distribution of this press release in certain jurisdictions could be subject to restrictions. The recipient of this press release is responsible for using this press release and the information herein in accordance with the applicable rules and regulations in the particular jurisdiction. This press release does not constitute an offer or an offering to acquire or subscribe for any Laboratory Testing, Inc. (LTI) securities in any jurisdiction including any other companies listed or named in this release.

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