Table of fatigue strengths for different steels

  • Thread starter TSN79
  • Start date
418
0
I'm looking at a table of fatigue strengths for different steels. I would like to know what the figures mean. For instance, for S235 under streching/pressure it says [tex]0\pm160[/tex] and [tex]130\pm130[/tex]. I believe the values are supposed to be average tension pluss/minus amplitude tension, but I'm not sure. I'm hoping someone can explain this to me, and so maybe I can understand the Smith-diagrams soon as well.
 

brewnog

Science Advisor
Gold Member
2,701
7
TSN79 said:
I'm looking at a table of fatigue strengths for different steels. I would like to know what the figures mean. For instance, for S235 under streching/pressure it says [tex]0\pm160[/tex] and [tex]130\pm130[/tex]. I believe the values are supposed to be average tension pluss/minus amplitude tension, but I'm not sure.
Pretty much. The values will be mean stress (not tension), followed by the stress amplitude for the particular fatigue test used.
 

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving
Top