Adams-Marc Co-Simulation Provides Efficient and Accurate Method of Simulating Misuse Load Events
SimAcademy Webinar Archive: Patran Fringe Results Processing
This webinar discusses contour results processing in patran and the associated settings in a Fringe plot along with the usage of Patran Ranges and its modification. A small demonstration will be shown on these topics.
SimAcademy Webinar Archive: Bonora Damage Model
Finite element modeling has been widely used to predict the failure. One such technique is a progressive failure analysis (PFA). However the limitation of progressive failure analysis is that it assumes material to be linear elastic up to the point of failure. To deal with failure analysis of ductile materials there are various damage models available in MSC Marc. One such damage model is Bonora model which is used to predict the ductile damage in materials that are subjected to large plastic deformation that typically occurs in manufacturing processes.
SimAcademy Webinar Archive: Contact Pair Modeling – New Approach to Contact Model Setup in Patran 2013 with MSC Nastran 2013.1
Patran 2013 supports the new MSC Nastran 2013.1 contact pair user interface by providing a new Contact Pair Load and Boundary Condition (LBC) graphical user interface. The interface allows users to create contact pairs using individual contact property sets, or re-use existing interface definitions by referencing existing property sets. This capability, along with Patran's global property editing capability, provide a powerful, scalable UI that is suited equally well to creating both individual contact pairs, and large numbers of complex contact pairs, using common properties. Along with the new contact pair user interface is a set of tools that allow users to automatically create contact bodies and contact pairs based on user-defined criteria.
SimAcademy Webinar Archive: Nastran Embedded Fatigue (NEF) – Capabilities and Applications
Fatigue failures are often identified through testing. However, since the advent of FE based stress solvers, starting with Nastran in the 1960’s, attention has focused on the concept of FE based fatigue calculation procedures. MSC Fatigue (1990) was the first such commercial package of similar commercial FE based tools. These methods, both test and FE based, treat the fatigue calculation process as a post processing task and this has been an accepted convention throughout. Now in the recent time, MSC Nastran Embedded Fatigue (NEF) breaks this convention by coupling the stress and fatigue calculation process into one simultaneous operation. This new capability has wide ranging implications in fatigue and reliability in large mechanical engineering. By combining the two separate processes into one simultaneous process the need for any kind of intermediate data is removed. Such intermediate files can sometimes be a limiting factor in the size of model that can be handled.
SimAcademy Webinar Archive: Defining and Attaching External Super Elements Using Two Step Method
The limits on hardware resources, combined with budget restrictions (large runs and stochastic variations can be time-consuming), limits the ability of engineers to solve large, complicated problems with high fidelity meshes. A solution to these problems (both hardware and time budget), can be achieved for many models by using superelements in MSC Nastran. By using superelements, the analyst can not only analyze larger models (including those which exceed the capacity of your hardware), but he can also become more efficient in performing the analysis, thus allowing more analytical design cycles or iterations in the analysis. Another benefit of superelements efficiency can be realized when models are subjected to probabilistic or stochastic analysis by varying portions of the structure.
SimAcademy Webinar Archive: Thermo-Mechanical Analysis Using SOL 400
Thermo-Mechanical Analysis in SOL 400 has been in MSC Nastran since 2008. MSC Nastran has features of multi-discipline analysis where various analyses can be coupled or chained. Multi-physics is a thermo-mechanical bi-directional coupling. Coupling the two physics is advantageous when they are closely linked together. For example in frictional heat generation or heat generation due to plastic heating. Chaining is running the two physics in sequence. We will discuss the procedure and advantages of doing a multi-physics coupled problem and chained thermal-mechanical problems. Also look at the interaction of thermal and structural analysis. New thermal enhancements in MSC NASTRAN 2013.1 in Sequential Thermo-Mechanical with Quadratic Temperature Distribution will be covered.