纳米梁和纳米棒的屈曲与裂纹

The proceedings of the 13th international conference "Modern Building Materials, Structures and Techniques" (MBMST 2019) Pub Date : 2019-12-03 DOI:10.3846/mbmst.2019.038

H. Arif, J. Lellep

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引用次数: 3

摘要

利用非局部弹性理论研究了纳米梁和纳米棒的屈曲问题。所考虑的纳米梁具有分段的恒定截面尺寸，并且在台阶的再入角处产生裂纹或裂纹状缺陷而减弱。提出了一种确定带裂纹的阶梯纳米梁临界屈曲载荷的通用方法。对缺陷对临界屈曲载荷的影响进行了数值计算，并与其他研究人员的类似结果进行了比较。

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Buckling of nanobeams and nanorods with cracks

Buckling of nanobeams and nanorods is treated with the help of the nonlocal theory of elasticity. The nanobeams under consideration have piecewise constant dimensions of cross sections and are weakened with cracks or cracklike defects emanating at the re-entrant corners of steps. A general method for determination of critical buckling loads of stepped nanobeams with cracks is developed. The influence of defects on the critical buckling load is evaluated numerically and compared with similar results of other researchers.

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The proceedings of the 13th international conference "Modern Building Materials, Structures and Techniques" (MBMST 2019)

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