Linear
Elastic Fracture Mechanics
Linear
elastic fracture mechanics (LEFM) is the basic building block
of most fracture mechanics analyses, and provides a measure
of when a structure will fracture or at what rates a crack
will propagate due to stress corrosion or fatigue.
LEFM is
applicable to brittle fracture situations where the load-deflection
response of the cracked body is essentially linear up to the
point of fracture. LEFM is a highly developed technology owing
to an extensive amount of basic applied research and testing.
It is applicable to analyzing and predicting all aspects of
crack growth behavior (fatigue, environmental-assisted fatigue,
stress corrosion, and arrest of a fast running crack), as
well as the final fracture event.
LEFM is
widely accepted by the engineering community and is in general
use in many areas, including ASME Codes, Regulatory Guides,
material specifications, and industry design manuals.
pc-CRACK
incorporates twenty-five (25) fracture mechanics models for
a wide variety of crack/structure configurations for computation
of stress intensity factor (KI) as
a function of crack size (a). Fatigue and stress corrosion
crack growth capability is also provided, along with built-in
material properties for selected materials.
This module
allows the user to input KI versus
crack size data not available within pc-CRACK (e.g. from finite
element analyses or newly published fracture mechanics solutions).
Proceed
to Elastic Plastic Fracture Mechanics Page
Return
the to the pc-CRACK Homepage
|
