Product: Abaqus/Standard
Material:
Young's modulus = 200 × 103 N/mm2, Poisson's ratio = 0.3, Creep law: 
= A
A
, A = 10–16, A = 10–14, 
= 5.0, and m = 0.5.
Boundary conditions:
on line AD and 
at mid-point of line AD.
Loading:
= 100 N/mm2 for 
10000 hours and = 110 N/mm2 for 
10000 hours.
This is a test recommended by the National Agency for Finite Element Methods and Standards (U.K.): Test 12(c) from NAFEMS Publication Ref: R0027, “NAFEMS Fundamental Tests of Creep Behaviour,” June 1993.
The results are shown in the following table. The values enclosed in parentheses are percentage differences with respect to the reference solution.
| Abaqus Results | |
|---|---|
| t |  |
| 0.00 | 0.0000 (0.00%) |
| 147.21 | 0.0013 (–5.29%) |
| 1580.80 | 0.0055 (–1.62%) |
| 8800.00 | 0.0181 (–0.54%) |
| 15028.00 | 0.0316 (–0.32%) |
| 18438.00 | 0.0393 (–0.26%) |
| 20000.00 | 0.0427 (–0.23%) |
The total creep time for this test is 20000 hours. The times listed in the above table are the times calculated by the Abaqus automatic time stepping algorithm with CETOL = 0.1. The creep law is defined via user subroutine CREEP.