Rib and Boss Design for Drop Test Pass

Drop test failures often trace to thin walls and sharp corners. Adding ribs to large flat surfaces increases stiffness without much weight. Place bosses at screw holes to spread impact loads. Keep wall thickness uniform to avoid stress risers.

Use fillets generously at internal corners. A radius of at least 1/3 the wall thickness reduces stress concentration. Avoid sharp notches near mounting points. For plastic enclosures, consider material with higher impact strength like ABS or polycarbonate.

Simulate drop from required height using FEA. Focus on critical edges and corners. Test prototypes with accelerometers to validate. Iterate design changes based on failure modes observed.

Remember, a small rib can make the difference between crack and survive. Prioritize stiffness where impact occurs. Keep it simple and robust.

#Tolerancing# #Fasteners#