K-Solutions with Assumed-Stress Hybrid Elements

by Oscar Orringer, Assoc. Dir.; Aeroelastic and Structures Research Lab., MIT, Cambridge, Mass.,
James W. Mar, Prof. of Aeronautics and Astronautics; MIT, Cambridge, Mass.,
Pin Tong, Principal Staff Scientist; Mechanics Div., DOT Transportation Systems Center, Cambridge, Mass.,
George Stalk, Research Asst.; Aeroelastic and Structures Research Lab., MIT, Cambridge, Mass.,
Ken-Yuan Lin, Research Asst.; Aeroelastic and Structures Research Lab., MIT, Cambridge, Mass.,


Serial Information: Journal of the Structural Division, 1977, Vol. 103, Issue 2, Pg. 321-334


Document Type: Journal Paper

Abstract: The hybrid crack-containing finite element provides a powerful tool for fracture mechanics analysis of geometries too complicated to be treated by classical mehods. The basis of the hybrid method is reviewed, with emphasis upon the techniques used for crack elements. A new family of axisymmetric and plane-stress bi-material crack elements is introduced through example solutions of simple problems. Also, several example applications of analyses of real structural details with a single-material plane stress crack element are presented.

Subject Headings: Cracking | Hybrid methods | Finite element method | Stress analysis | Geometrics | Axisymmetry | Plane strain

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