Tensile test

Elements are subjected to tensile loading in this problem. The problem is analyzed using seven different element types. The mesh is shown in Figure 1.

The material model is isotropic linear elasticity. The material properties used are Young's modulus = 1.0, Poisson's ratio = 0.0, and density = 1. Taking advantage of the symmetry of the configuration, the bottom of the model in each case is constrained against displacement in the vertical direction, and the left side is constrained against displacement in the horizontal direction.

The magnitude of the concentrated load is chosen such that the total strain is .01. The load magnitude is increased linearly from zero to its final value over the first half of the step; it is then held constant over the second half of the step to verify that any oscillatory dynamic effects are minimal.