The goal is to create a complete set of tools to improve our understanding of hydraulic fracture,” says Wohlever. This enables Abaqus to do an arbitrary realistic hydraulically driven fracture in axis symmetric 2D and 3D models. “We have taken the general 3D fracture capability of XFEM and coupled them with our coupled pore pressure-displacement solution. Speaking of failure and durability, 6.14 also advances the extended finite element method (XFEM). XFEMS used to assess fractures in the excavator bucket. In Wohlever’ s example it appears the boom wasn’t optimized for the load, it’s low fatigue durability meant it was back to the drawing board for this particular design cycle. FE-safe can then be used to ensure the system is still durable with respect to fatigue. Using Tosca a user can determine the points of low stress on an excavator boom arm and then perform structural optimizations at those areas while maintaining design constraints. Tosca and FE-safe are work well together. With this tool the goal of producing a product with a zero fatigue failure rate is feasible.” “It produces accurate fatigue and failure calculations that can reduce maintenance costs by helping you design the parts correctly the first time. “It reduces the amount of physical testing that needs to be done,” explains Wohlever. While at the same time ensure the products can be efficiently manufactured,” says Wohlever.įE-safe is another solver which joined SIMULIA in 2013. “The goals of Tosca are to help you develop innovative products quickly, and help you produce stiffer structures that meet the durability that is needed. The Tosca solver, which joined SIMULIA last year, can be used for structural and fluid flow optimization. Tosca optimization reduces the boom weight by 20%.įE-Safe Fatigue analysis shows that this current design isn’t quite up to snuff. It is worth noting that this linking can also include 3rd party technology. As the Abaqus simulation looks into the loads of the excavator digging, it sends feedback to Dymola which tell the system to react. Take our excavator for instance, “This will let you design and optimize control systems like a hydraulic circuit or a load sensor within the context of a realistic simulation in Abaqus,” says Wohlever.
Thanks to Isight, version 5.8 allows you to couple system level logical and physical control systems (inside a CATIA Dymola simulation) into Abaqus. It also allows for better system optimization.
This simplifies the development cycle by reducing the number of physical inputs the user must perform. It chains together simulations when the outputs of one process are needed as inputs for another. Coupling simulations saves data input time and allows system optimizations.įor those not in the know, Isight is used for process and model integration.