How do you analyze load distribution in multi-fastener bolted joints?

Multi-fastener joint analysis considers: Fastener flexibility (spring stiffness based on diameter, material, and grip length), Plate flexibility (member stiffness between fasteners), and Load path through the joint. Classical methods use spring-mass models where load distributes based on relative stiffness - end fasteners typically carry higher loads due to plate flexibility. Analysis accounts for bypass load (load continuing past joint) and bearing stress in each fastener hole. FEM with fastener elements provides detailed distribution. For fatigue-critical joints, load equalization through interference fit fasteners or optimized fastener patterns improves life.