I am working on strength assessment of composite structural repair using lap joint. I am using 1D approach where I calculate fastener loads in each bolt row by hand calculations (Not FEM based). This is a very conservative approach as I am considering the max loads in the entire repair area. However, to reduce the conservatism and estimate the loads closer to FE, I am looking forward to extend this method to consider the biaxial loading to calculate the fastener loads more accurately. Can anybody suggest how to do this.
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