Byron Skillings, Ladish Proposed Rates: An Aerospace Perspective ASTM E28.04 Workshop Byron Skillings, Ladish Proposed Rates: An Aerospace Perspective
Ladish - Common Aerospace Test Rates 0.005 in/in/min to yield 0.05 in/min to fracture (ASTM E21 & Customer Req) 1 minute to fracture 0.002 in/in/min to yield 0.1 in/in/min to fracture
Ladish - E8 Proposed Test Rates 0.015 in/min to Yield Proposed yield rate 5 to 7.5 X faster 0.45 in/min to fracture Proposed to fracture rate 4.5 - 9 X faster than present aerospace rates
Ladish - Is the change significant? Room temperature Ti testing examples
Ladish- Yield vs Test Rate Power Law Model
Ladish- Ultimate Strength vs Test Rate
Ladish – Yield Strength vs Ultimate Strength
Ladish – 0.2 Offset Yield Strength vs. Ultimate Strength
Ladish – Elongation vs Reduction of Area
Ladish – Test Summary
Ladish - Potential Industry Impact Design Curves Data Statistical Approvals Specifications