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Spread Forces Throughout Equipment and Reduce Breakdowns

Spread Forces Throughout Equipment and Reduce Breakdowns

What you will learn from this article. 

  • How forces are distributed through an object.
  • Force diagrams are used to represent forces on an object.
  • Position and direction of a force determines the type of stress.
  • How to redistribute force in a structure.

Why don’t you fall to the ground when you sit in a chair? Why doesn’t the roof fall in on top of you? We don’t expect these sorts of things to happen. But at times chairs fail and people fall to the ground and at times roofs fall on people. When structures are put under sufficient stress they will fail. [Read more…]

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4 Steps to Accomplish HALT

4 Steps to Accomplish HALT

4 Not Always Easy Steps

Highly Accelerated Life Testing, HALT, is a method to discover the weaknesses in a design. Using a step stress approach of single and combined stresses, you can quickly expose the salient weaknesses in your design and/or assembly process.

The value of HALT is it’s quick and often finds problems not previously known. You will destroy one or more prototypes, yet the value of knowing specifically what needs improvement more than justifies the sacrifice of a few photos.

Conducting HALT may be part of your reliability plan. Keeping a few steps in mind will help make sure your HALT does provide value back to your development efforts. [Read more…]

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Reliability Paradigm Shift From Time to Stress Metrics

Reliability Paradigm Shift From Time to Stress Metrics

Traditional electronics reliability engineering began during the period of infancy in solid state electronic hardware. The first comprehensive guide to Failure Prediction Methodology (FPM) premiered in 1956 with the publication of the RCA release TR-1100:  “Reliability Stress Analysis for Electronic Equipment” presented models for computing rates of component failures.  “RADC Reliability Notebook” emerged later in 1959, followed by the publication of a military handbook know as  that addressed reliability prediction known as Military Handbook  for [Read more…]