Jul 23, 2004 #1 wp1 Mechanical Jun 23, 2003 4 0 0 US Can anyone give any info/definitions of the following? -coffin-manson fatigue coefficient -hardening exponent -coefficient of plastic resistance Thanks
Can anyone give any info/definitions of the following? -coffin-manson fatigue coefficient -hardening exponent -coefficient of plastic resistance Thanks
Jul 23, 2004 #2 harry123456 Automotive Jun 24, 2004 72 0 0 US Look at the first coupld of chapters of this book Fundamentals of Metal Fatigue Analysis ---bannantine Upvote 0 Downvote
Look at the first coupld of chapters of this book Fundamentals of Metal Fatigue Analysis ---bannantine
Jul 25, 2004 #4 PhV Computer Jun 2, 2004 11 0 0 Those parameters are mainly related to local approach in Fatigue engineering. Coffin manson characterizes the plastic area (equivalent of low cycle fatigue) Other parameters are related to Ramberg-Osgood cycle hardening/softening material curve PhV Upvote 0 Downvote
Those parameters are mainly related to local approach in Fatigue engineering. Coffin manson characterizes the plastic area (equivalent of low cycle fatigue) Other parameters are related to Ramberg-Osgood cycle hardening/softening material curve PhV
Jul 26, 2004 #5 MToft Structural Sep 30, 2002 20 0 0 GB Hi, As I found Bannantine quite hard to get hold of, here's my take on these parameters: A strain-life curve is basically made up of two log-log straight curves for the elastic and plastic strains; elastic coefficient = fatigue strength coefficient elastic exponent = " " (Basquin) exponent plastic coefficient = " ductility coefficient plastic exponent = " " (Coffin-Manson) exponent Basquin between -0.05 and -0.12 for some typical steels, Coffin-Manson from -0.5 to -0.7? Safe Technology of Sheffield, UK have provided some good advice, courses etc in the past... Good luck! Upvote 0 Downvote
Hi, As I found Bannantine quite hard to get hold of, here's my take on these parameters: A strain-life curve is basically made up of two log-log straight curves for the elastic and plastic strains; elastic coefficient = fatigue strength coefficient elastic exponent = " " (Basquin) exponent plastic coefficient = " ductility coefficient plastic exponent = " " (Coffin-Manson) exponent Basquin between -0.05 and -0.12 for some typical steels, Coffin-Manson from -0.5 to -0.7? Safe Technology of Sheffield, UK have provided some good advice, courses etc in the past... Good luck!
Aug 9, 2004 #6 jagad5 Mechanical Jun 21, 2002 85 0 0 US Try looking for Bannanntine at http://www.bookfinder.com a website that checks hundreds of new and used bookstores. You can find just about any book you want and can compare prices from many places. Doug Doug Upvote 0 Downvote
Try looking for Bannanntine at http://www.bookfinder.com a website that checks hundreds of new and used bookstores. You can find just about any book you want and can compare prices from many places. Doug Doug