VM324

VM324
Swelling Strain of a Block Under High Fluence Loading

Overview

Reference:

Yang, G., et al. (2021). Preliminary study on the thermal-mechanical performance of the U₃Si₂/Al dispersion fuel plate under normal conditions. Nuclear Engineering and Technology, 53(12), 3723–3732.

https://doi.org/10.1016/j.net.2021.05.014
Analysis Type(s): Static (ANTYPE,0)
Element Type(s):

3-D Structural Solid Elements (SOLID185)

Input Listing: vm324.dat

Test Case

A fluence is applied on a block constrained in the vertical direction (Figure 593). This induces a swelling strain. As it is constrained, the block generates stresses due to the swelling. The value of the swelling strain is compared to Mechanical APDL results.

Figure 593: Problem Sketch: Fluence Loading on a Block

Problem Sketch: Fluence Loading on a Block

Material Properties Geometric Properties Loading

Arruda-Boyce Model

μ = 50 MPa

λL = 5

d = 0.001

 

Material properties for linear swelling

C1 = 1E-3

W = L = H = 1 mm

Fluence Φt = 160

applied on the whole body

Analysis Assumptions and Modeling Notes

The problem is solved using 3D SOLID185 elements. The linear swelling is defined by TB,SWELL. The block is subjected to high fluence loading of 160, causing the block to have finite strain due to swelling, which is then acquired in /POST1.

Results Comparison

Results
Target Mechanical APDL Ratio
Swelling strain0.14840.14841.000