THE STRESS ANALYSIS AROUND A PIN-LOADED HOLE IN FINITE COMPOSITE LAMINATES

In Ref (1) the authors of this paper put forward a elastic pin model consideringre deformation of pin and the effects of friction in contact area On the basis of above work, this paper studied the stresses around a pinloaded hole in finite laminate First, the flexibility equation of pin and the analytical expression of equivalent nodel forces around the hole have been established.Next, based on the contact conditions, and using the analytical formulas mentioned above and FEM, the FEM-anatytical mixed method is developed for calculating the stresses around a pin-loaded hole in finite laminate.Finally, a numerical example is given.The analysis shows that the results of the calculation are verp consistant with the experimental data.