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... 6.44510 6.47070 6.47151 6.47170 ε r (%) 10.19 0.4119 0.01638 0.003863 0.0007726 Case c A more interesting case, from a practical point of view, appears when some of the dimensions of the beam are variable along the longitudinal axis (Fig. 5). The differential equations in this case are linear, but they have variable coefficients, so the energy approach is clearly advantageous against the matrix approach, specially when the structure is made of a large number of beams. The resulting critical buckling load ...
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... The factors affecting the critical load to cause elastic instability are the modulus of elasticity E, the geometric moment of inertia I , the length L and the type of mounting [30]. As far as the Young's modulus is ...
The longitudinal compressive response of unidirectional high-stiffness carbon fibres radially confined with glass fibre and embedded in an epoxy matrix are analysed in this study. The method was originally developed for reinforced concrete columns. For this class of hybrid composites, initial fiber misalignment along with material nonlinearity leads to the initiation of fibre kinking. The load carrying capability is expected to be preserved due to the presence of lateral confinement. However, compressive strength is highly depended on fibre alignment. If, via manufacturing highly aligned fibres can be formed, then this could potentially lead to micro-buckling failure initiation.
... The factors affecting the critical load to cause elastic instability are the modulus of elasticity , the geometric moment of inertia , the length and the type of mounting [30]. s far as the Young's modulus is concerned, a stiff material is more resistant to buckle. ...
The longitudinal compressive response of unidirectional high-stiffness carbon fibres radially confined with glass fibre and embedded in an epoxy matrix are analysed in this study. The method was originally developed for reinforced concrete columns. For this class of hybrid composites, initial fiber misalignment along with material nonlinearity leads to the initiation of fibre kinking. The load carrying capability is expected to be preserved due to the presence of lateral confinement. However, compressive strength is highly depended on fibre alignment. If via manufacturing highly aligned fibres can be formed, then this could potentially lead to micro-buckling failure initiation.
