Research Article

A Higher-Order Thermomechanical Vibration Analysis of Temperature-Dependent FGM Beams with Porosities

Table 3

Temperature and material graduation effect on first dimensionless natural frequency of S-S FG porous beam with different FG type and porosity parameter and thermal loading .

FGM typeLoad type

= 20 [K])
FGM (I)0UTR6.303895.558145.072724.278753.727643.331043.01417
LTR6.358045.615915.132404.34043.789113.390853.07191
NLTR6.358045.616975.134184.343373.792693.394323.07434
STR6.392205.649205.165254.372673.820893.421923.10216
0.1UTR6.889395.911015.30854.369083.744633.308442.96886
LTR6.937015.962435.361894.42443.799713.36183.02011
NLTR6.937015.963505.363684.427373.803273.365253.02251
STR6.968385.992635.391524.453383.828183.389533.04698
0.2UTR7.824796.418445.627824.478763.758653.274112.90872
LTR7.865946.463615.675414.527843.807433.321112.95356
NLTR7.865946.464705.676814.530813.810973.324512.95592
STR7.894946.490855.701494.553543.832593.345512.97705
FGM (II)0UTR6.303895.558145.072724.278753.727643.331043.01417
LTR6.358045.615915.13244.34043.789113.390853.07191
NLTR6.358045.616975.134184.343373.792693.394323.07434
STR6.392205.649205.165254.372673.820893.421923.10216
0.1UTR6.641115.788215.246734.380473.791123.372613.04242
LTR6.691385.842185.302644.438283.848653.428183.09605
NLTR6.691385.843265.304464.441303.852273.431893.09850
STR6.722765.974655.332634.467703.877583.456593.12341
0.2UTR7.048456.055225.443974.491543.858433.415493.0708
LTR7.095056.105615.496304.54573.912223.467423.12050
NLTR7.095056.106735.498184.548803.915903.470983.12300
STR7.123776.345785.523544.572373.938393.492873.14509

( = 40 [K])
FGM (I)0UTR6.033105.292924.810924.022573.476293.084922.77209
LTR6.213945.480655.002434.218133.671523.276412.95925
NLTR6.213965.482825.006104.224273.678933.283612.96429
STR6.284285.549185.070034.284553.736973.340463.02173
0.1UTR6.641135.671425.073154.140653.521523.090792.75553
LTR6.801585.838085.243774.314873.695083.260372.92054
NLTR6.801585.840285.247464.320993.702433.267472.92549
STR6.866145.900145.304644.374343.753523.317342.97583
0.2UTR7.595246.202065.418744.277593.563343.084452.72346
LTR7.736506.349215.56834.430943.715723.232612.86700
NLTR7.73656.351465.572034.437043.722993.239602.87185
STR7.796156.405125.62264.483553.767233.282602.91519
FGM (II)0UTR6.03315.292924.810924.022573.476293.084922.77209
LTR6.213945.480655.002434.218133.671523.276412.95925
NLTR6.213965.482825.006104.224273.678933.283612.96429
STR6.284285.549185.070034.284553.736973.340463.02173
0.1UTR6.384555.538445.001044.141283.557323.144472.81874
LTR6.553075.713725.179924.323773.739043.322052.99163
NLTR6.553075.715955.183674.329993.746513.329292.99671
STR6.617675.814765.241554.384193.798483.380073.04801
0.2UTR6.804595.819745.213334.268383.641263.204412.8646
LTR6.961715.983385.380364.438553.810223.368843.02398
NLTR6.961715.985695.384234.444913.817813.376173.02913
STR7.020826.124585.436284.493243.863903.421073.07452

( = 80 [K])
FGM (I)0UTR5.434964.700684.22113.434132.888362.499992.18730
LTR5.908345.1937844.726673.958403.421423.032822.71915
NLTR5.908345.198424.734543.971593.437393.048392.73012
STR6.05825.339564.870414.099723.560963.169772.85332
0.1UTR6.101075.143324.551183.624533.008652.582942.25038
LTR6.515305.193784.994114.083253.473723.045692.70968
NLTR6.515305.579935.001974.096283.489413.060922.72034
STR6.652325.706675.122864.2089830597423.166602.82749
0.2UTR7.103585.733564.959713.830093.121512.649282.29333
LTR7.463366.107995.343424.226843.522583.046312.68480
NLTR7.463366.112765.351314.239733.537993.061192.69516
STR7.589736.226055.457794.337413.630883.151632.78670
FGM (II)0UTR5.434964.700684.22113.434132.888362.499992.18730
LTR5.908345.1937844.726673.958403.421423.032822.71915
NLTR5.908345.198424.734543.971593.437393.048392.73012
STR6.05825.339564.870414.099723.560963.169772.85332
0.1UTR5.823154.986194.453173.598133.017462.610032.28715
LTR6.260555.441994.920304.081353.506843.096732.77022
NLTR6.260555.446754.928314.094643.522843.112282.78118
STR6.397815.598745.050924.209373.632933.220082.89057
0.2UTR6.275675.303824.703893.766933.145612.716322.38167
LTR6.680275.725445.135734.212443.594933.160802.82025
NLTR6.680275.730364.143954.225953.611093.176442.83130
STR6.805685.645705.253884.327843.708293.271302.92754