Table 5 Effect of initial amperage \(\:{\varvec{\Phi\:}}_{0}\) of the integrated layers on the changes of frequencies of the sandwich curved beam with changes of thermal loads.

From: A unified multifield formulation for analysis of a sandwich graphene origami reinforced composite curved structure

\(\:{T(}^{O}K)\)

\(\:{{\Phi\:}}_{0}=0\)

\(\:{{\Phi\:}}_{0}=0.01\)

\(\:{{\Phi\:}}_{0}=0.02\)

\(\:{{\Phi\:}}_{0}=0.03\)

\(\:{{\Phi\:}}_{0}=0.04\)

320

36.48141

36.48250

36.48286

36.48315

36.48551

325

36.48093

36.48196

36.48264

36.48264

36.48437

330

36.48044

36.48143

36.48242

36.48213

36.48323

335

36.47996

36.48090

36.48220

36.48162

36.48209

340

36.47947

36.48037

36.48197

36.48110

36.48094

345

36.47931

36.47994

36.48091

36.48059

36.48022

350

36.47914

36.47950

36.47985

36.48008

36.4795

355

36.47898

36.47907

36.47879

36.47956

36.47878

360

36.47881

36.47863

36.47772

36.47742

36.47806

365

36.47822

36.47814

36.47730

36.47691

36.47734

370

36.47763

36.47765

36.47688

36.47640

36.47663

375

36.47704

36.47716

36.47647

36.47589

36.47591

380

36.47646

36.47666

36.47604

36.47645

36.47588

385

36.47574

36.47570

36.47568

36.47593

36.47574

390

36.47503

36.47475

36.47532

36.47542

36.47561

395

36.47431

36.47379

36.47496

36.47491

36.47548

400

36.47360

36.47283

36.4746

36.47263

36.47535

405

36.47323

36.47292

36.47436

36.47273

36.47496

410

36.47287

36.47301

36.47413

36.47283

36.47458

415

36.47251

36.47309

36.47389

36.47293

36.47420

420

36.47215

36.47318

36.47366

36.47303

36.47382

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