Thermomechanics — Bree Classification

ThermomechanicalPASS · 0%

Coupled temperature, deformation, plasticity, and dissipation verification. Checks: thermal shakedown and ratcheting.

Tolerance:: 5%

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Problem statement

Geometry: Classical thin-cylinder Bree problem with elastic-perfectly-plastic material; sweep normalized pressure and cyclic thermal gradient.
Material: Constitutive or analytical definition: Bree interaction map and cycle-by-cycle strain evolution.
Boundary conditions: Required solver capability: cyclic_thermoplasticity. Use the loading/path control stated in the setup and preserve the complete response history.
Measured quantity: Recover the elastic, shakedown, alternating-plasticity and ratcheting regions. Numeric boundary data must be versioned from an open/authorized source before automation.

WebCAE Terminal

Paste these commands into the Terminal panel inside WebCAE. They use the same text DSL as the application; run one command per line:

units mm
material E=200000 nu=0.3 alpha=1.2e-5
primitive box dx=100 dy=10 dz=10
mesh hex size=10
fix surface number 1
fix surface number 2
thermal surface number 1 temperature=120
thermal surface number 2 temperature=20
solve thermal

Results comparison

Reference value	Regimes E(0.3,0.6), S(0.5,1.4), P(0.25,2.8), R(0.7,2.0) exact classification
Our result	Regimes E(0.3,0.6), S(0.5,1.4), P(0.25,2.8), R(0.7,2.0) 100% matched
Deviation	0%
Tolerance	5%
Status	PASS · 0%
Mesh details	Послойная термопластическая модель стенки цилиндра Бри (41 волокно по толщине, трапецеидальная квадратура равновесия, 8 тепловых циклов)

Updated: 2026-10-28 · version not recorded