OS-V: 0500 Laminated Strip

Test No. R0031/1 OptiStruct examines the bending stress at E, Interlaminar shear stress at D and the z-deflection at E for linear static analysis.

Figure 1. FE Model with Boundary Conditions and Loadcases

Model Files

Before you begin, copy the file(s) used in this problem to your working directory.

Benchmark Model

Quad4 and Hexa8 elements are used to create one quarter model of the laminated strip simply supported at A. For Quad4 elements Ply laminates are created and for Hexa8 elements the PSOLID property is used. A line load of 10 N/mm is applied at C.

The material properties for the laminated strip are:
1.0 × 105 MPa
υ 12
υ 23
5.0 × 103 MPa
3.0 × 103 MPa
G13 = G23
2.0 × 103 MPa
υ 12/E1
υ 21/E2

Linear Static Analysis Results

Target OptiStruct Results Normalized with the Target Value
Laminated Plate (Quad4):
Bending Stress at E (MPa) 683.9 570.196 1.19941213
Interlaminar Shear Stress at D (MPa) -4.1 -4.103 0.99926883
Z deflection at E (mm) -1.06 -1.045 1.01435407
Stacked Brick (Hex8):
Bending Stress at E (MPa) 683.9 572.81 1.19393865
Interlaminar Shear Stress at D (MPa) -4.1 -3.229 1.26974295
Z deflection at E (mm) -1.06 -1.028 1.0311284


NAFEMS R0031 - Composite Benchmarks, Hardy 2001