Dual-axis hole-drilling ESPI residual stress measurements

Journal Article · Tue Jan 01 00:00:00 EST 2008 · Journal of Engineering Materials and Technology

OSTI ID:960589

Steinzig, Michael ^[1]; Schajer, Gary ^[2]

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1. Los Alamos National Laboratory
2. UNIV OF BRITISH COLUMBIA

A novel dual-axis ESPI hole-drilling residual stress measurement method is presented. The method enables the evaluation of all the in-plane normal stress components with similar response to measurement errors, significantly lower than with single-axis measurements. A numerical method is described that takes advantage of, and compactly handles, the additional optical data that are available from the second measurement axis. Experimental tests were conducted on a calibrated specimen to demonstrate the proposed method, and the results supported theoretical expectations.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 960589
• Report Number(s): LA-UR-08-05414; LA-UR-08-5414; JEMTA8; TRN: US201006%%1231
• Journal Information: Journal of Engineering Materials and Technology, Journal Name: Journal of Engineering Materials and Technology; ISSN 0094-4289
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DATA
ERRORS
EVALUATION
INTERFEROMETRY
RESIDUAL STRESSES
STRESS ANALYSIS