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Simply Supported Uniform Loading over 2/3 of plate from fixed edge Stress and Deflection Equation and C
Flat Rectangular Plate, Three Edges Fixed, One Edge (a) Simply Supported Uniform Loading over 2/3 of plate from fixed edge Stress and Deflection Equation and Calculator.
Per. Roarks Formulas for Stress and Strain for flat plates with straight boundaries and constant thickness
Flat Rectangular plate, Three Edges Fixed, One Edge Uniform Loading over 2/3 of Plate
Rectangular plate;
Three Edges Fixed 
Uniform Loading over
2/3 of plate from fixed edge 
At x = 0, z = 0
Stress
Reaction Force
Stress at x = 0, z = 0.6b
and 
At x = 0, z = b
Reaction Force
At x = ± a/2, z = 0.4b
Stress
Reaction Force
Where used:
E = Modulus of Elasticity (lbs/in^{2})
q = Total load or force to Plate (lbs/in^{2})
v = Poisson’s ratio (assumed to be 0.3)
t = plate thickness, (in)
a = plate length, (in)
b = plate width, (in)
σ_{b} = stress, (lbs/in^{2})
R = Reaction Force
(lbs/in)
β_{1,2,3,4} = Constant From Table A
γ_{1,2,3} = Constant From Table A
Table A
a/b

.25

0.50

0.75

1.0

1.5

2.0

3.0

β_{1} 
0.020 
0.080 
0.164 
0.274 
0.445 
0.525 
0.566 
β_{2} 
0.003 
0.016 
0.044 
0.093 
0.193 
0.252 
0.286 
β_{3} 
0.012 
0.043 
0.081 
0.108 
0.112 
0.091 
0.066 
β_{4} 
0.031 
0.111 
0.197 
0.255 
0.284 
0.263 
0.204 
γ_{1} 
0.115 
0.230 
0.334 
0.423 
0.517 
0.542 
0.543 
γ_{2} 
0.002 
0.015 
0.048 
0.088 
0.132 
0.139 
0.131 
γ_{3} 
0.125 
0.250 
0.345 
0.396 
0.422 
0.417 
0.405 
Reference:
Roarks Formulas for Stress and Strain, 7th Edition
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