考虑化工设备成本的粘接结构件质量控制模型

化工设备在进行生产活动过程时会对设备本身造成一定程度的损耗,特别是在粘接结构的界面处。粘接结构件的质量好坏会直接影响化工设备的使用寿命,粘接性能好的构件能大大增加设备寿命,但往往这种设备的制作成本很高。因此我们需要对粘接结构的质量和成本进行综合评估,在保证经济成本最低的情况下对粘接结构件的质量控制。文章通过对粘接构件构建界面力学模型,通过研究张力-位移界面本构关系来控制粘接结构件界面处的质量,同时还通过这个模型来控制设备成本。

Adhesive bonding of composite aircraft structures:Challenges and recent developments

In this review paper,the challenges and some recent developments of adhesive bonding technology in composite aircraft structures are discussed.The durability of bonded joints is defined and presented for parameters that may influence bonding quality.Presented is also,a numerical design approach for composite joining profiles used to realize adhesive bonding.It is shown that environmental ageing and pre-bond contamination of bonding surfaces may degrade significantly fracture toughness of bonded joints.Moreover,it is obvious that additional research is needed in order to design joining profiles that will enable load transfer through shearing of the bondline.These findings,together with the limited capabilities of existing non-destructive testing techniques,can partially explain the confined use of adhesive bonding in primary composite aircraft structural parts.