Hi all,
I am wanting to perform some pin-type bearing tests per ASTM E238. I unfortunately dont have access to the templer extensometer suggested in the standards. Is there an alternative approach for measuring bearing deflection, ideally with a standard tensile extensometer?
Additionally, can...
Hi all,
I recently performed some axial fatigue tests (ASTM E466) on a metal alloy. A handful of the specimens fractured in the threaded grip sections. Is this a common failure type for axial fatigue?
Could it be due to poorly machined threads or that the thread pitch (1mm pitch was used) was...
Hi all,
I am wanting to improve the surface finish on some Ti-6Al-4V ELI test specimens and a demonstrator component. These parts are in two surface conditions currently, some in the machined conditions +/- 1 um Ra and +/- 6.5 um Rz, and some in the electropolished condition, +/- 3.3 um Ra and...
Hi all,
I am wanting to calculate how long a fatigue test will take per specimen. ASTM E466 states that up to 100 Hz test frequency for constant amplitude axial fatigue test is acceptable.
If the test is performed at 100 Hz and say for 2 million cycles, am I correct in saying the test will...
Hi all,
We recently had some ASTM E8 number 3 specimens machined and threaded, a handful of the specimen's threads wouldn't turn into the threaded grips.
Is it possible to test these with V notch wedge grips and if so can/should some of the threaded material be machined away to reduce the risk...
