Transient elastodynamic response of a circular crack in a thick plate under torsion

Conference · Mon Jan 01 00:00:00 EST 1979

OSTI ID:6267096

Chen, E P

The elastodynamic response of a thick plate under torsion is considered. A penny-shaped crack is assumed to exist in the center of the plate such that the problem is axisymmetric in nature. The crack is pressurized suddenly along its surfaces resulting in transient conditions. This problem is also equivalent to that of sudden appearance of a crack in the loaded plate. Hankel and Laplace transforms are used to reduce the problem to the solution of a pair of dual integral equations. A numerical Laplace inversion routine is used to recover the time-dependence of the solution. The dynamic stress intensity factor is determined and its dependence on time and geometry is discussed.

• Research Organization: Sandia Labs., Albuquerque, NM (USA)
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 6267096
• Report Number(s): SAND-78-2336C; CONF-790615-1; TRN: 79-013080
• Resource Relation: Conference: 3. US national congress on pressure vessels and piping, San Francisco, CA, USA, 25 Jun 1979
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
PLATES
CRACKS
CIRCULAR CONFIGURATION
ELASTICITY
HANKEL TRANSFORM
LAPLACE TRANSFORMATION
MECHANICS
STRESSES
TORSION
TRANSIENTS
CONFIGURATION
INTEGRAL TRANSFORMATIONS
MECHANICAL PROPERTIES
TENSILE PROPERTIES
TRANSFORMATIONS
420200* - Engineering- Facilities
Equipment
& Techniques