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Fatigue Crack Growth Article Featured In Quality

Article on Fatigue Crack Growth Demonstrates Expertise

A new article by Laboratory Testing Inc’s Guy Connelly is featured in the June 2014 issue of Quality Magazine. The article entitled “Fatigue Crack Growth Testing 101” explains why, how and when the test is conducted and provides an overview of the test methodology without overwhelming detail.

Following an introduction, the article is divided into three sections:

  • Fatigue Crack Growth Specimen
  • Test Apparatus
  • Method and Results

FlashThe section subtitled Fatigue Crack Growth Specimen, deals with preparing a representative sample of material with a notch. The next section, Test Apparatus & Method, outlines the testing process to determine crack growth rate and crack growth measurement. The Results section profiles the data obtained from the testing that is used to formulate results. The article also includes images complementing the text and giving readers a visual introduction to samples, equipment and results.

Quality Magazine is a monthly publication that is geared towards manufacturing professionals. Their issues can be found in-print and online.

Material Testing Experts with Diverse Capabilities

GuyConnellyGuy Connelly is a Senior Engineer at Laboratory Testing Inc. In his position, Guy works closely with customers that have unique applications to develop special processes, and also conducts routine fracture toughness and fatigue testing. He graduated from Lehigh University with a B.S in Mechanical Engineering and an M.S in Applied Mechanics.

Laboratory Testing performs the fatigue crack growth test to ASTM E647 with the following capabilities:

  • Test Methods – Compliance (FCGR-C)
  • Control Methods – Constant Load, increasing, decreasing, and constant delta K, and constant Kmax
  • Load – load cells capable of running from 50 lbs. to 55,000 lbs.
  • Temperature – between -250° F and +400° F
  • Test Specimens – C(T) compact tension; M(T) middle tension
  • Fixturing – C(T) and M(T) specimen geometries in a range of sizes

In addition to Fatigue Testing & Fracture Toughness Testing, LTI is capable of a wide variety of Mechanical Testing services, including Hardness, Impact, Stress Rupture, Tensile and Elevated Temperature Tensile.

Want to learn more about fatigue crack growth? Contact Laboratory Testing and talk to a specialist today.