叁模量现象及叁模量梁理论

TRIMODULUS PHENOMENON AND TRIMODULAR BEAM THEORY

复合材料层合板在一些特殊的情况下可能出现叁模量现象。本文给出了一叁模量材料的实例 ,并对其制备的梁的极限承载力和挠度等进行了实测。在此基础上 ,推导了叁模量梁的极限承载力和极限挠度的计算公式。经与试验结果对照 ,证明对叁模量特征显著的材料 ,计算时应考虑三模量特性。

There are three moduli with some special composite laminates. One example of trimodular material is given in this paper. And the ultimate load and deflection of the beam , which was made of it, are tested. The calculation formulas of ultimate load and deflection of the beam are deduced. Compared with the experiment results, it proves that the trimodulus property should be considered for the materials with outstanding trimodular characteristics. The trimodular beam theory can forecast the ultimate load and deflection of the trimodular beam.