Abstract
A method for determining the critical force for an axially compressed composite bar with account of deplanation of its cross sections is considered. It is proposed to consider the cross-sectional deplanation, which decreases the critical force, by lowering the basic flexural stiffness of the bar by the value resulting from this effect. General relationships for calculating this value for composite bars are obtained. Numerical results are presented, which show the decrease in the critical force as a function of some parameters for transversely isotropic bars of rectangular cross section.
Similar content being viewed by others
REFERENCES
A. N. Guz', Stability of Three-Dimensional Deformable Bodies [in Russian], Naukova Dumka, Kiev (1971).
R. B. Rikards and G. A. Teters, Stability of Shells of Composite Materials [in Russian], Zinatne, Riga (1974).
A. N. Guz', B. L. Pelekh, I. Yu. Babich, and G. A. Teters, “On the scope of applied theories in the stability problems for rods and plates with low shear stiffness in the case of uniaxial compression,” Mekh. Polim., 5, No. 6, 1124–1126 (1969).
Yu. M. Tarnopol'skii and A. V. Roze, Salient Features of Designing Articles of Reinforced Plastics [in Russian], Zinatne, Riga (1969).
I. Yu. Babich, A. N. Guz', and V. N. Chekhov, “Three-dimensional stability theory of fibrous and laminate materials,” Prikl. Mekh., 37, No. 9, 3–42 (2001).
V. G. Piskunov, A. V. Gorik, and V. N. Cherednikov, “Modeling of transverse shears of piecewise homogeneous composite bars using an iterative process with account of tangential loads. 1. Construction of a model,” Mech. Compos. Mater., 36, No. 4, 287–296 (2000).
V. G. Piskunov, A. V. Gorik, and V. N. Cherednikov, “Modeling of transverse shears of piecewise homogeneous composite bars using an iterative process with account of tangential loads. 2. Resolving equations and results,” Mech. Compos. Mater., 36, No. 6, 445–452 (2000).
P. M. Varvak and A. F. Ryabov (eds.), Handbook of Elasticity Theory [in Russian], Budivel'nik, Kiev (1971).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Gorik, A.V., Tolstopyatov, R.V. Account of the Cross-Sectional Deplanation of a Composite Bar in Determining the Critical Force. Mechanics of Composite Materials 39, 149–152 (2003). https://doi.org/10.1023/A:1023461412760
Issue Date:
DOI: https://doi.org/10.1023/A:1023461412760