Application of indentation as a retardation mechanism for fatigue crack growth
Source abstract
Abstract
Abstract The aim of this study was to evaluate the influence of a mechanical impact applied in front of a crack tip on fatigue crack growth retardation. Many experiments and numerical simulations were conducted, and the methodology for the numerical evaluation of impact efficiency on fatigue life is stated. Data evaluation and analyses confirmed the expected crack growth retardation and lifetime enhancement. The impact energy, crack length and load level had a substantial effect on the retardation of crack growth. Under suitable conditions, the impact indentation technique can cause the full arrest of crack propagation. The efficiency of impact application as a crack stopper increased mainly because of the reduction in the stress intensity factor values. In some cases, this method can replace more conventional approaches, such as drilling or repair by bonded or mechanically joined patches.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Surface Treatment and Residual Stress · High-Velocity Impact and Material Behavior
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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