Mech Guru

Products:  Abaqus/Standard  Abaqus/Explicit   Objectives This example demonstrates the following Abaqus features and techniques: predicting debond growth in a single leg bending (SLB) specimen using the  *DEBOND  option with the VCCT fracture criterion in Abaqus/Standard; predicting debond growth using the VCCT fracture criterion and surface-based cohesive behavior in Abaqus/Explicit; and predicting progressive delamination growth at the interface in this specimen subjected to sub-critical cyclic loading using the low-cycle fatigue criterion based on the Paris law. Application description The example examines the debonding behavior of a single leg bending specimen and compares the simulation results with the results of the analysis performed using the VCCT-based fracture interface elements discussed in Mabson (2003). Damping is also used in a two-dimensional model to demonstrate how it can stabilize the crack growth. The same model is analyzed usi...

Products:  Abaqus/Standard  Abaqus/Explicit   Objectives This example demonstrates the following Abaqus features and techniques: predicting debond growth in a double cantilever beam (DCB) using the  *DEBOND  option with the VCCT fracture criterion, cohesive elements, and surface-based cohesive behavior in Abaqus/Standard; demonstrating the use of the  *CONTACT CLEARANCE ASSIGNMENT  option with the VCCT fracture criterion and surface-based cohesive behavior in Abaqus/Explicit to predict debond growth; restricting delamination growth and predicting the onset of debonding in models without a predefined crack tip using cohesive elements to supplement the VCCT fracture criterion for modeling the Z-pins and stitches that are commonly used in aerospace applications; and predicting progressive delamination growth at the interface in a double cantilever beam subjected to sub-critical cyclic loading using the low-cycle fatigue criterion based on the Pa...