Determine the cyclic variation of stresses and strains for a two-bar
assembly loaded axially by a constant mechanical load and a cyclic thermal load of ± 300°
C.
A mechanical load (P) = 15 N is applied to the rigid bar. A cyclic
thermal load is applied to Bar 1 as shown.
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File Name
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Open drive
letter:\Users\Public\Public Documents\SOLIDWORKS\SOLIDWORKS
version\samples\Simulation
Examples\Verification\NAFEMS_NL2B.SLDASM.
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Study Type
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Nonlinear static with large strain and large displacement
formulations
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Mesh Size
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Use standard mesh with a global element size of 0.577
mm.
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Material Properties
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Bar 1 and Bar 2
Model Type:
Plasticity - von Mises
| Material
Property |
Value |
| Elasticity modulus (E) |
10000 MPa |
| Poisson's ratio (ν) |
0 |
| Yield stress (σy) |
10 MPa |
| Tangent Modulus |
1000 MPa |
| Coefficient of thermal expansion |
1x10-5
/K |
| Hardening factor |
1 |
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Rigid Bar
- Elastic Modulus (E) = 1
x 108 MPa
- Poisson's ratio (ν) =
0
The rigid bar is assigned stiffer
material properties to simulate the behavior of a rigid body.
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Results
Plot the cyclic variation of stress component SX for Bar
1.
X-axis shows half cycles (pseudo time in sec) and Y-axis shows
stress in MPa.
Plot the cyclic
variation of stress component SX for Bar 2.
X-axis shows half cycles
(pseudo time in sec) and Y-axis shows stress in MPa.
Reference
NAFEMS Publication R0026, The International Association
for the Engineering Analysis Community, “Selected Benchmarks for Material
Non-Linearity”, 1993.