# Applications of Fracture Mechanics in Notch Crack Growth

This article discusses the use of fracture mechanics in analyzing crack growth at notches, specifically looking at transitional crack length examples with a crack effective length from tip to tip inclusive of

## About Applications of Fracture Mechanics in Notch Crack Growth

PowerPoint presentation about 'Applications of Fracture Mechanics in Notch Crack Growth'. This presentation describes the topic on This article discusses the use of fracture mechanics in analyzing crack growth at notches, specifically looking at transitional crack length examples with a crack effective length from tip to tip inclusive of. The key topics included in this slideshow are . Download this presentation absolutely free.

## Presentation Transcript

Slide1applications of fracture mechanics to crack growth at NotchesS S l l 2c 2a L* L*: Transitional crack length Example:   2c = 5 mm, L* = 0.25 mm             2c = 25 mm, L* = 1.21 mm Numerical Solution: Newman 1971 For crack length l  ≥ 10% c: crack effective length is from tip to tip!!! (including notch)

Slide2Variación de latensión con la distancia: Para r = 1.25 ro: Kt cae de 3 ->2

Slide3Consequences:For relatively small (5-10 % notch size) cracks at a hole or at a notch, the stress intensity factor K is approximately the same as for a much larger crack with a length that includes the hole diameter / notch depth. plane window Reading: Fatige and the Comet Airplane (taken from S. Suresh, Fatigue of Materials)