Calculate skip distance and beam coverage for angle beam UT testing at standard refracted angles (45, 60, 70 degrees)
Input Parameters
Results
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Full Skip Distance
in
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Half Skip Distance
in
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Beam Spread (half angle)
deg
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Scanning Range from Weld
in
Note: Standard angles per AWS D1.1 Annex S and ASME V Art. 4. Scan range should cover at least half skip to full skip distance from weld toe.
Reference
Skip Distance = 2 x t x tan(refracted angle)
Half Skip = t x tan(angle)
Beam Spread: sin(theta) = 1.22 x lambda / D
lambda = V_shear / frequency
V_shear (steel) = 0.1280 in/us