家具T型結構試片之懸臂長與厚度比值（L/h）對其剪斷撓度的影響解析

The Analysis of the Cantilever Length and Thickness Ratio (L/h) of T-shape Structure Specimen for Furniture-Influence on Shear Deflection

林法勤(Far-Ching Lin)

《林產工業》 17卷1期 (1998/03) Pp. 103-109

https://doi.org/10.6561/FPI.1998.17(1).7

摘要

家具T型結構試片的懸臂撓度是由樑內的純彎矩和剪斷力所產生，因此其剪斷撓度應被考慮。根據虛功原理的推導，並和中央集中載重試片規格的比較，以及電腦程式的計算發現，當懸臂長度大於其厚度的7倍以上時，其剪斷撓度是可以忽略不計。

關鍵字

剪斷撓度 ； T型結構試片 ； 剪力形狀因數 ； 彈性係數 ； 剛性係數 ； 虛功原理

並列摘要

The deflection of T-shape structure specimen for furniture joint strength test was produced by both shear force and pure bending moment of the cantilever beam. Therefore, the shear deflection should be considered. According to the derivation by virtual work theory, comparison with the specification of simple supported beam, and calculation by computer program, the result shown that the shear deflection could be negligible when length of the cantilever beam was over 7 times of its thickness.

並列關鍵字

Shear Deflection ； T-shape Structure Specimen ； Form Factor for Shear ； Module of Elasticity ； Module of Rigidity ； Virtual Work