Virtual Zoom Class
URL will be emailed once payment has been received.
Engineering Critical Assessments: ECA (virtual)
$1,849.00
15 in stock
15 in stock
Description
The course will cover:
- Background
- Discussion on flaws in pipelines and the methodology used to estimate the critical loads that flaws propagate
- Basic concepts
- Material toughness and crack driving force will be reviewed
- Current methods for stress-based design to establish critical conditions
- Crack-tip opening displacement, Failure Assessment Diagrams
- Discussion on tearing instability
- Recent developments
- Developments in strain-based design, introduced primarily for pipelines crossing unstable terrain or subjected to plastic strain during pipe laying, will be discussed.
- Methodology of ECA: Standard techniques to perform ECA based on fracture mechanics principles are available in a number of pipeline standards, including CSA Z662 (the Canadian pipeline code). For stress-based design, ECA may be done using the Crack Opening Displacement COD design curve (CSA) or Failure Assessment Diagram FAD.
- Current Developments: To support strain-based design, a toughness testing method using a single-edge-notched tension-loaded SE(T) (or SENT) specimen is nearing standardization
