Forum: Reliability & Maintainability Questions and Answers
Topic: Reliability & Maintainability Questions and AnswersTopic Posted by: Reliability & Maintainability Forum (firstname.lastname@example.org )
Organization: System Reliability Center
Date Posted: Mon Aug 31 12:47:36 US/Eastern 1998
Original Message:Posted by: Sam
Date posted: Mon Jul 31 18:37:43 US/Eastern 2000
Subject: Coffin-Manson Eq.
We're using Coffin-Manson equation to calculate the acceleration factor (AF) of solder joint (failure mechanism is thermal fatigue). The AF is only related to temperature range. The question is: if the temperature transition rate affects the AF? If so, what's the equation? In addition, are there any other equations to calculate the AF for the above condition? Thanks in advance! Sam.