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Buckling analysis of tri-layer beams with multiple separated delaminations

机译:具有多层分隔的三层梁的屈曲分析

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摘要

In the present work, nondimensionalized axial and bending stiffnesses are used to investigate the buckling behavior of tri-layer beams having asymmetric double separated delaminations. A generalized analytical analysis using the Euler-Bernoulli beam theory is developed. Appropriate boundary and kinematic conditions are used to formulate the systematic homogeneous equations. The model is verified with the previously published data for homogeneous beam case and an excellent agreement between the results is observed. Effective-slenderness ratio, a new nondimensionalized parameter, is defined and introduced which strongly influences the buckling phenomenon.
机译:在目前的工作中,使用无量纲的轴向和弯曲刚度来研究具有不对称双分离分层的三层梁的屈曲行为。建立了使用欧拉-伯努利光束理论的广义分析。使用适当的边界条件和运动学条件来公式化系统齐次方程。该模型已通过先前发布的均质梁案例数据进行了验证,并且观察到结果之间的极佳一致性。定义并引入了有效细长比,这是一个新的无量纲参数,它会严重影响屈曲现象。

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