Journal of Theoretical and Applied Mechanics

BULGARIAN ACADEMY OF SCIENCES
NATIONAL COMMITTEE OF THEORETICAL AND APPLIED MECHANICS

Journal of Theoretical and Applied Mechanics

Print ISSN: 0861-6663 Online ISSN: 1314-8710

Editors' Suggestion

TIME-DEPENDENT DELAMINATION OF MULTILAYERED INHOMOGENEOUS BEAM LOADED IN PURE TORSION: AN ANALYTICAL SOLUTION

V. Rizov

The multilayered inhomogeneous beam configuration considered in this paper exhibits delamination fracture that is time-dependent due to the viscoelastic behaviour. Besides, the two external torsion moments applied on the beam vary smoothly with time. The beam has a rectangular cross-section. The layers of the beam are continuously inhomogeneous in longitudinal direction. The two crack arms are loaded in pure torsion. A solution of the strain energy release rate for the delamination is derived by analyzing the timedependent strain energy stored in the beam structure. An alternative method based on the analysis of the beam compliances under the two torsion moments is applied in order to verify the solution of the strain energy release rate.

JTAM, Vol. 54 No. 3 (2024) pp. 278-291

Journal of Theoretical and Applied Mechanics is a quarterly publication of the National Committee of Theoretical and Applied Mechanics at the Bulgarian Academy of Sciences. It publishes original research papers and invited survey articles in all areas of Mechanics. The Journal is published by the Insitute of Mechanics at the Bulgarian Academy of Sciences and is funded by the Bulgarian Science Fund. Subscription: Subscription rate per volume (4 issues): 80 EUR Checks, money orders etc. should be made out to the Institute of Mechanics, Bulgarian Academy of Sciences and should be sent to the address of the Editorial Office. Library exchange: All inquiries about library exchange should be addressed to the Editorial Office. Useful links: