Technical Tidbits Archive: 2012-2014
To learn more about the materials we develop, read about our high performance alloys.
Resources
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Fatigue-Issue 72-December 2014
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Explore some of the unexpected ways that fatigue failures can crop into your designs.
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Fatigue Failure Diagnosis-Issue 71-November 2014
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See how fatigue failures are diagnosed in the field, and how to distinguish them from other failure modes.
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Simulating Fatigue Behavior-Issue 70-October 2014
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Discover how to use finite element analysis and other simulation methods to estimate fatigue life.
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Linear Elastic Fracture Mechanics Fatigue Analysis-Issue 69-September 2014
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Learn about the fracture mechanics fatigue method, and how it is used to generate Paris Law constants.
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Stress Intensity and Fracture Toughness-Issue 68-August 2014
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Introduce yourself to the concepts of fracture toughness, and learn what stress intensity is.
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Strain Life Fatigue Analysis Methods-Issue No 67-July 2014
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Consider the advantages and disadvantages of stress life and strain life fatigue methods compared side by side.
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Introduction to the Strain Life Fatigue Method-Issue 66-June 2014
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Familiarize yourself with strain life fatigue methods, useful at lower cycles than stress life fatigue methods.
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Stress Life Fatigue Methods-Issue 65-May 2014
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Review the concepts of stress life discussed previously and read some relevant commentary on the accuracy and usefulness of this method.
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Goodman (Haigh) and Other Related Diagrams-Issue 64-April 2014
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Learn about Goodman and other diagrams that are used to determine maximum allowable alternating stresses under a given loading condition.
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Mean Stress and Alternating Stress-Issue 63-March 2014
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Discover how to use S-N data generated in fully reversed cyclic loading to estimate life under loading conditions with different stress ratios.
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Fatigue Life Prediction Using S-N (Wohler) Diagrams-Issue 62-February 2014
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Find out how to properly estimate the fatigue life or fatigue strength of your component using statistically relevant data and the appropriate modification factors.
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Variables Affecting Fatigue Performance-Issue 61-January 2014
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Examine other variables such as anisotropy or edge condition that may affect the service life of your particular application.
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Effect of Stress Concentration Factors on Fatigue Life-Issue 60-December 2013
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Consider how the stress concentration effects of notches, grooves, and corners can reduce the fatigue life of your components.
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Fatigue Strength Modifying Factors-Part 3-Issue 59-November 2013
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Determine the effects of component size, geometry, and loading on the fatigue performance of your design.
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Fatigue Strength Modifying Factors-Part 2-Issue 58-October 2013
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Discover how to estimate the fatigue strength or fatigue life of your part at temperatures greater than the test temperature.
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Fatigue Strength Modifying Factors-Part 1-Issue 57-September 2013
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Read about how the condition of the surface of your part can affect the fatigue life.
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Statistical Analysis of S-N Wohler Diagrams-Issue 56-August 2013
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See how to come up with a statistically meaningful and relevant fatigue strength or maximum allowable stress for your application.
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S-N Wohler Diagrams-Issue 55-July 2013
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Examine how the results of fatigue test data are plotted in a usable manner, and how fatigue strength is defined on a case by case basis.
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Characterization of Fatigue Behavior-Issue 54-June 2013
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Familiarize yourself with how and for how long the fatigue behavior of a material is characterized.
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Fatigue and Stress Ratios-Issue 53-May 2013
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Learn how the stress ratio describes the severity of a particular cyclical loading cycle, and provides insight into what testing you need to do to ensure reliability.
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Introduction to Fatigue-Issue 52-April 2013
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Introduce yourself to the concept of fatigue failure, and what you can do to prevent the process from causing your design to fail.
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Strain Hardening And Formability-Issue 51-March 2013
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Explore how anisotropy and the strain hardening behavior of a material affects how easily you can form it.
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Strain Hardening-Issue 50-February 2013
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Learn about strain hardening in a material, and how it governs the manufacturing and peformance of that material in your designs.
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Tensile Strength Considerations-Issue 49-January 2013
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See how easily-measured tensile strength is determined, and how a material's ductility (or lack thereof) influences the appearance of the fracture in a tensile test.
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Elastic Modulus-Issue 48-December 2012
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Discover how the elastic modulus helps to determine the performance of your connector design in multiple ways.
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Yield Strength And Other Near Elastic Properties-Issue 47-November 2012
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Learn the importance of near elastic properties, and the various tests that are used to determine them.
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Stress-Strain Concepts Revisited-Part 2-Issue 46-October 2012
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Introduce yourself to the important material properties derived from a stress-strain curve, and how the tensile test is instrumental in obtaining them.
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Stress-Strain Concepts Revisited-Part 1-Issue 45-September 2012
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Learn how a tensile test is used to generate a stress-strain curve, which contains many important material properties you need to know about.
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Connector Insertion Force-Issue 44-August 2012
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Find out how to minimize the insertion force upon mating your connector, without degrading the electrical contact performance.
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Alloy 390-Issue 43-July 2012
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Learn about Alloy 390, an alloy with strength near that of high strength copper beryllium and conductivity near that of high conductivity copper beryllium.
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Summary Of Electrical Contact Coatings-Issue 42-June 2012
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Review the different considerations for various coating types, and how to choose the optimum material for your design.
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The Effects of Arcing-Issue 41-May 2012
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Explore the damaging effects of electrical arcing, and what you can do to minimize any potential damage.
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Introduction to Arcing Contacts-Issue 40-April 2012
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Familiarize yourself with the different types of electrical arcing in separable contacts, and where, when and why they occur.
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Silver As A Contact Material-Issue 39-March 2012
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Read about the advantages of silver for contact materials, particularly in higher voltage separable contacts.
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The Platinum Group Metals As Contact Materials-Issue 38-February 2012
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Find out where platinum, palladium, and other similar metals are used for electrical contact surfaces, and what to watch out for when you do use them.
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Gold As A Contact Material-Issue 37-January 2012
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Explore the advantages of gold and what makes it an ideal material for electrical contacts, when cost constraints allow it.
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