Computation Method in Failure Analysis of Mechanically Fastened Joints at Layered Composites

Ivana Ilić, Zlatko Petrovic, Mirko Maksimović, Slobodan Stupar, Dragi Stamenković
2012 Strojniski vestnik  
This paper considers a computation method in failure analysis of layered composites containing pin-loaded holes. The investigation is focused on developing a reliable computation procedure to analyze initial failure load for pin-loaded holes at layered composite structures. Finite element method (FEM) is used to determine stress distribution around the fastener hole. Combining Chang-Scott-Springer characteristic curve model and Tsai-Wu initial failure criterion are used to determine joint
more » ... e. Special attention in this work is paid to pin-load distributions and its effect on the load level of failure and its location. In previous work initial failure analysis was carried out using cosine distribution between pin/lug mechanically fastened joint. Here contact finite element pin/lug model is analysed. The influence of stacking sequences of layered composites containing pin-loaded holes is also investigated. Special attention is paid to failure load and mode analyses in composites with stacking sequence [0/(±45) 3 /90 3 ] S . The computation results are compared with available experimental results. Good correlations between computation and experimental results are obtained.
doi:10.5545/sv-jme.2011.157 fatcat:jr53obwetnhnlkshmq4it2nc7i