Bifurcation of an Obliquely Fiber-Reinforced Elastic Slab under Axial Loads

概要

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In the framework of the theory of continua with kinematical constraint of inextensibility, bifurcation from homogeneous finite deformation of an obliquely fiber-reinforced elastic slab under axial loads, both tensile and compressive, is studied. The matrix is assumed to be Blatz-Ko foam rubber. In spite of the uniform axial stress loading, the initial homogeneous deformation consists not only of axial extension or contraction but also of pure shear deformation owing to the oblique reinforcement. The bifurcation is analyzed on the basis of the incremental deformation theory. For various wavelength-to-thickness ratios, the critical loads are shown in the form of curves as a function of fiber inclination.
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