Products: ABAQUS/Standard ABAQUS/Explicit
Skew plate under normal pressure.
Mesh:
A coarse (2 × 2) and a fine (4 × 4) are tested for each element. In addition, a very fine (8 × 8) mesh is tested for each element in the explicit dynamic analysis.
Material:Linear elastic, Young's modulus = 210 GPa, Poisson's ratio = 0.3, density = 7800 kg/m3.
Boundary conditions:
along edges AB, BC, CD, and AD. 
0 at point A and 
at point B to prevent rigid body motion.
Loading:
Uniform pressure of –7.0 kPa in the vertical z-direction. In the explicit dynamic analysis the loading is applied such that a quasi-static solution is obtained.
This is a test recommended by the National Agency for Finite Element Methods and Standards (U.K.): Test LE6 from NAFEMS Publication TNSB, Rev. 3, “The Standard NAFEMS Benchmarks,” October 1990.
Target solution: Maximum principal stress = 0.802 MPa on the lower surface at point E.
The results are shown in Table 4.2.6–1 and Table 4.2.6–2. The values enclosed in parentheses are percentage differences with respect to the reference solution.
The skew sensitivity of shell elements is discussed in “Skew sensitivity of shell elements,” Section 2.3.4.
S4R elements.
S4RS elements.
S4RSW elements.