aluminum plate 96061-t60 floor hatch cover
 

aluminum plate (6061-t6) floor hatch cover
hoping someone can help me with this. can anyone give me a formula to calculate the maximum concentrated load on an aluminum hatch cover. the cover being 36" square 3/8" thick and supported on four sides with a one inch bearing.
thanks in advance.
check out roarks "stresses & strains" which gives formula for stress & deflection of plates.