Short Crack Propagation Model Applied to Shot Peened Aluminium Alloys

J. Solis; J. Oseguera-Peña; I. Betancourt

doi:10.4028/www.scientific.net/AMR.65.53

Paper Titles

Transferability of the Gurson Damage Model Parameters with Charpy and Tensile Tests with Different Constrain Level
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Mechanics of Randomly Folded Thin Materials
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Effect of Mixed Mode Loading Induced by Asymmetrical Stress upon Crack Initiation from Corrosion Pits
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Evaluation of Brittle Layers Obtained by Boriding on AISI H13 Steels
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Short Crack Propagation Model Applied to Shot Peened Aluminium Alloys
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Effect of Boriding on the Mechanical Properties of AISI 1045 Steel
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Verification of the Ultrasonic Qualification for Structural Integrity of Partially Concrete Embedded Steel Elements
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Rotating Bending Fatigue Tests on Aluminum Alloy AISI-SAE 6061-T6 at High Speed (150 Hz), and Close to Elastic Limit
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Residual Strength and Fracture Path for Drilled Epoxy-Glass Composites
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Short Crack Propagation Model Applied to Shot Peened Aluminium Alloys

Abstract:

The Navarro-Rios micromechanical model was used to assess the bounds of two different damage zones: crack arrest region and crack propagation region of controlled shot peening (CSP) of high strength aluminium alloys. Performance of CSP in terms of fatigue resistance was investigated. This comparison indicated that CSP in terms of fatigue depends on the competition between its beneficial and detrimental products, i.e. surface roughness and compressive residual stresses respectively. The gathered information can be used for safe load determinations in design.