Biegeverhalten von kernverbund‐systemen
Biegeverhalten von kernverbund‐systemen
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核心联盟系统的责任
DOI：
10.1002/app.1978.070221011
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发表时间：
1978
影响因子：
3
通讯作者：
Dr.‐Ing. G. Lang
中科院分区：
文献类型：
--
作者：
Dr.‐Ing. G. Lang
夹层结构的拉伸和弯曲计算数据表明，在受到横向力的弯曲载荷作用下，芯材中会产生剪切应力，该应力影响铝饰面聚乙烯复合芯材的弯曲性能。这种影响是由于参与化合物的聚合物的粘弹性特性造成的，取决于温度和负载持续时间。混合到芯材料中的添加剂除了增加芯本身的刚性之外，还产生更有利的弯曲性能，前提是同时可以通过添加剂提高板和芯之间的粘合效果的牢固性。在这种情况下，必须考虑生产条件的影响。
The data for the calculation of tensions and bendings of sandwich structures show that in case of bending loads, which are not free from transverse forces, shearing stress occurs in the core, and this stress influences the bending properties of polyethylene compound cores provided with aluminum facings. This influence is due to the viscoelastic properties of the polymers participating in the compound, dependent on the temperature and the load duration. Additives mixed into the core material produce, besides increased rigidity of the core itself, a more favorable bending behavior provided it has been possible at the same time to improve the firmness of the adhesive effect between the plates and the core by means of the additive. In this case the influence of the production conditions must be taken into consideration.