Abstract: Systems and methods for modeling stress intensity solutions of integrally stiffened panels are disclosed. In one embodiment, a method includes serving a process over the internet. The process includes taking a problem definition, automatically forming a finite element model at least partially based on the problem definition, automatically verifying a suitability condition of the finite element model, automatically solving a computational solution using the finite element model and automatically validating the computational solution. In one aspect, providing a problem definition includes at least one of providing a geometry definition, providing a crack definition, and providing load and constraint definition.