Could you tell me where should I modify

[carlota]

Hi, everyone：
I am building a cable-stayed bridge with two towers , and analyzing its seismic vulnerability, the piers and towers are nonlinearBeamColumn element,and they are made of fiber sections. The following error occurred in the gravity analysis stage.

#####################################################
UniaxialMaterial::setTrial() - material failed in setTrialStrain()
Large trial compressive strain
UniaxialMaterial::setTrial() - material failed in setTrialStrain()
Large trial compressive strain
UniaxialMaterial::setTrial() - material failed in setTrialStrain()
Large trial compressive strain
UniaxialMaterial::setTrial() - material failed in setTrialStrain()
ForceBeamColumn3d::update() - section failed in setTrial
Domain::update - domain failed in update
LoadControl::update - model failed to update for new dU
WARNING NewtonRaphson::solveCurrentStep() -the Integrator failed in update()
StaticAnalysis::analyze() - the Algorithm failed at iteration: 0 with domain at load factor 0.1
OpenSees > analyze failed, returned: -3 error flag

##################################################
Does anyone have idea about where the problem is and give me some suggestions. I'd appreciate for your help. Thanks.

[mhscott]

Probably an error in your section definition. Do a moment-curvature analysis. Try different materials.

[carlota]

Thank you very much for your reply, I will try again with a different material.

[carlota]

dear mhscott:
I'm very sorry to bother you again. After I modified the material, the following error appeared again. Is it the error of mass and gravity?
########################################
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 70(dW: << 0.0399154, dW0: 54389.5)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 124(dW: << 17.6352, dW0: 54390.6)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 205(dW: << -147.505, dW0: 66249.
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 259(dW: << -1.5762, dW0: 66237.4)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 316(dW: << 36.5342, dW0: 2.87936e+30)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 317(dW: << 0.000162453, dW0: 8.84531e+50)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 318(dW: << 3.19031e-05, dW0: 1.17461e+51)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 319(dW: << 11.7628, dW0: 8.319e+50)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 320(dW: << 0.012207, dW0: 5.2617e+50)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 321(dW: << 53.3961, dW0: 3.41671e+50)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 322(dW: << 3.2436e+06, dW0: 1.50835e+50)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 323(dW: << 0.000466452, dW0: 6.24894e+49)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 324(dW: << 0.100106, dW0: 2.05211e+49)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 325(dW: << 24.6021, dW0: 2.77182e+50)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 326(dW: << 28.8275, dW0: 6.26881e+50)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 327(dW: << 43602.6, dW0: 1.38711e+51)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 328(dW: << 0.0261023, dW0: 1.4938e+51)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 329(dW: << 25.9291, dW0: 9.45781e+50)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 330(dW: << 2.05181, dW0: 6.52874e+49)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 331(dW: << 1.9956, dW0: 6.08973e+49)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 332(dW: << 577.412, dW0: 8.12852e+47)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 333(dW: << 0.00747883, dW0: 7.15126e+46)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 334(dW: << 543.401, dW0: 4.01929e+47)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 335(dW: << 76.615, dW0: 2.11257e+28)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 336(dW: << 34.0905, dW0: 5.48202e+48)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 337(dW: << 6.61922, dW0: 1.09966e+48)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 338(dW: << 0.00788734, dW0: 1.05444e+48)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 339(dW: << 0.0732143, dW0: 1.34286e+48)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 340(dW: << 0.00165048, dW0: 1.32655e+48)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 341(dW: << 1.64592, dW0: 1.09572e+48)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 342(dW: << 1558.01, dW0: 6.89821e+47)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 343(dW: << 601.36, dW0: 5.16215e+47)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 344(dW: << 1.95124, dW0: 3.72582e+47)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 345(dW: << 9.35886, dW0: 1.91726e+47)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 346(dW: << 678.255, dW0: 1.53652e+47)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 347(dW: << 33.3958, dW0: 3.41324e+46)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 348(dW: << 0.00152398, dW0: 1.60179e+46)
WARNING - ForceBeamColumn3d::update - failed to get compatible element forces & deformations for element: 349(dW: << 6.71774, dW0: 7.40227e+45)
Domain::update - domain failed in update
LoadControl::update - model failed to update for new dU
WARNING ModifiedNewton::solveCurrentStep() -the Integrator failed in update()
StaticAnalysis::analyze() - the Algorithm failed at iteration: 0 with domain at load factor 0.1
OpenSees > analyze failed, returned: -3 error flag
static over
################################################################

Looking forward to your reply, thank you very much.

[mhscott]

Do a moment-curvature analysis of the section