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FATIGUE CRACK TIP STRAINS IN 7075-T6 ALUMINUM ALLOY (1987)

Nicoletto, Gianni

Oxford, UK : Blackwell Publishing Ltd

Fatigue & fracture of engineering materials & structures 10 (1987), S. 0

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ISSN: 1460-2695

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Notes: Abstract— The plastic enclave surrounding a fatigue crack in a 7075-T6 aluminum alloy specimen is studied using moiré interferometry. Two distinct plastic zones are identified from inspection of moiré interferometric fringe patterns. The sizes and shapes of the monotonic and the cyclic plastic zones are correlated with previous theoretical and experimental results. Live load strain distributions in the plastic enclave are computed from high sensitivity (0.417 micron per fringe) full-field in-plane displacement contour maps. Comparison with theoretical and experimental strain distributions are included.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1111/j.1460-2695.1987.tb01147.x

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