期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：8
页码：15745
DOI：10.15680/IJIRSET.2014.0308089
出版社：S&S Publications
摘要：Stress analysis plays important role in the structural integrity and optimization. Prior stress estimationhelps in better design of the products. Composites find wide usage in the industrial and home applications due to itsstrength to weight ratio. Especially in the air craft industry, the usage of composites is more due to its advantages overthe conventional materials. Composites are mainly made of orthotropic materials having unequal strength in thedifferent directions. Composite materials has the drawback of delamination and debonding due to the weaker bondmaterials compared to the parent materials. So proper analysis should be done to the composite joints before using it inthe practical conditions. In the present work, a composite plate with elastic pin is considered for analysis using finiteelement software Ansys.Initially the geometry is built using Ansys software using top down approach with different Boolean operations. Themodeled object is meshed with 3 dimensional layered element solid46 for composite plate and structural threedimensional solid element Solid45 for pin material. Various combinations are considered to find the strength of thecomposite joint under uniaxial loading conditions. Due to symmetry of the problem, only quarter geometry is built andresults are presented for full model using Ansys expansion options. The results show effect of pin diameter on thejoint strength. Here the deflection and load sharing of the pin is increasing and other parameters like overall stress, pinstress and contact pressure is reducing due to lesser load on the plate material. Further material effect shows, higheryoung modulus material has little deflection, but other parameters are increasing. Interference analysis showsincreasing of overall stress, pin stress, contact stress along with pin bearing load. This increase should be understoodproperly for increasing the load carrying capacity of the joint. Generally every structure is preloaded to increase thecompressive stress in the joint to increase the load carrying capacity. But the stress increase should be properlyanalysed for composite due to its delamination and debonding effects due to failure of the bond materials. Whenresults for an isotropic combination is compared with composite joint, isotropic joint shows uniformity of the resultswith lesser values for all parameters. This is mainly due to applied layer angle combinations. All the results arerepresented with necessasary pictorial plots.
关键词：Displacement; Bearing force; Frictional force; Finite Element Analysis; Ansys and 3 dimensional.
