Product: ABAQUS/Standard
Mesh:
Collapsed elements with 1/4 point midside nodes are used at the crack tip. One-quarter of the test geometry is modeled.
Material:Young's modulus = 207 GPa, Poisson's ratio = 0.3.
Boundary conditions:
along edge CB, along edge AB.
Loading:
Uniform stress, = 100 N/mm2.
This is a test recommended by the National Agency for Finite Element Methods and Standards (U.K.): Test 8.1 from NAFEMS publication “2D Test Cases in Linear Elastic Fracture Mechanics,” R0020.
Target solution: K/K = 2.74, K =
The results are shown in the following table. The values enclosed in parentheses are percentage differences with respect to the reference solution.