Aluminum 7085 and MMPDS-03

[Flesh]

Can someone who has the MMPDS-03 tell me if it has fatigue data for Al-alloy 7085 other than axial loading? I have the green letter for this alloy, and it contains the axial loading data. I'm interested to know if bending fatigue data is listed. I have noticed that all other 7000-series listed in MMPDS-01 contain only axial data. What is the reason for this?

 

[bf109g]

Flesh -

All I see in MMPDS-03 are stress/strain curves for 7085. I don't see any S/N curves at all for this alloy.

 

[Flesh]

Thanks for checking bf109g! I won't bother updating to version -03 at this time.

 

[WKTaylor]

There are representative plane-stran fracture toughness values for various -T7651 plate thicknesses and orientations given in Table 3.1.2.1.6. "Values of Room Temperature Plane-Strain Fracture Toughness of Aluminum Alloys"

Regards, Wil Taylor

 

[goodvibes]

Hey,

Here is one reference I found with a fatigue curve. Take it with a grain of salt. According to this reference using properties for 7050 should be conservative lacking any fatigue data for 7085.

http://www.materialsaustralia.com/Materials_Forum/Vol28/GP 141.pdf

Good luck