Current Developments in Residual Stress Measurement by Invasive But Nondestructive Methods. Is the Complementarity There?

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Authors
  1. Roy, G.
  2. Porter, J.
  3. Holden, T.
  4. Pineault, J.
Corporate Authors
Materials Technology Lab-CANMET, Ottawa ONT (CAN);Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
Four methods of nondestructive residual stress determination, X-ray Diffraction (Xrd), Neutron Diffraction, Magnetic Barkhausen Noise (MBN), and Acousto elasticity using Electromagnetic Acoustic Transducers (EMAT) were used to determine residual stress in a steel plate. The results were compared with analytically calculated and Finite-Element-Method computed stress distributions, based on the plate geometry and boundary conditions, such as forces and displacements. The plate material was ASTM A517 steel (Grade 117), with an upper yield strength of 810MPa, and its chemical analysis confirmed the low-alloy composition, except for a substantially lower value of Cu, 0.19 instead of 0.40. Its elastic constants, (determined from tensile test specimens) were, Young's modulus, 225GPa, and Poisson's ratio, 0.28. The nominal dimension of the plate were 610mm (length) x 305mm (width) x 12mm (thickness).
Keywords
Aging aircraft;A517 steel
Report Number
DREA-SR-1999-162-PAP-44 — CONTAINED IN CA000150
Date of publication
01 Oct 1999
Number of Pages
1
DSTKIM No
CA000194
CANDIS No
511918
Format(s):
Hardcopy;Document Image stored on Optical Disk

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