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

Conference · Mon Jan 01 04:00:00 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
• Country of Publication: United States
• Language: English

Related Subjects

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