A ship runs aground, a cell phone drops off a table, gasoline sloshes in a gas tank and explodes. These are events that happen very quickly and involve permanent structural damage or the interaction of fluid and structure. You need to design products to hold up, but real world testing may be expensive or impossible. You can’t build a oil tanker and then run it aground to check for oil spills, for example. But you can use Dytran to simulate the behavior of small to extremely large assemblies in disastrous events, such as a drop, an impact, a shake, or a blast, to examine what might cause a product to fail.
Dytran is an explicit finite element analysis (FEA) solution for analyzing complex nonlinear behavior involving permanent deformation of material properties or the interaction of fluids and structures. Dytran enables you to study the structural integrity of designs to ensure that final products stand a better chance of meeting customer safety, reliability, and regulatory requirements.
Combining simulation technologies
Only a multi-discipline solution offers the most accurate results. Dytran combines structural, material flow, and fluid-structure interaction (FSI) analysis in a single package. Dytran uses a combination of Lagrangian and Eularian solver technology to analyze short-duration transient events that require finer time step to ensure a more accurate solution. You can apply Dytran to problems that have a high degree of material nonlinearity (foam, rubber, and large deformations in metal), large geometry nonlinearity (buckling, crippling, and cracking), and extreme boundary nonlinearity (a structure folding over onto itself.)
Adding custom solutions
Depending on your specific needs, you can purchase additional modules to work inside the Dytran interface. An optional LS-DYNA module allows you to simulate complex assemblies (such as an entire airplane hull) in high performance computing environments. An Dytran Underwater Shock Analysis (USA) module allows you to run Dytran with third party USA boundary element code for underwater shock FSI to examine, for example, how a naval vessel responds to shock waves from an underwater explosive. Dytran also supports coupled analysis with third-party occupant safety modeling programs such as the Articulated Total Body code, so you can study the safety occupants when a car crashes into a side rail.
Applications
- Simulate an automobile or airplane crash to optimize a the structure for occupant safety.
- Optimize designs of baffles and separators in automotive fuel tanks to reduce noise levels caused by fluid motion.
- Determine the collapse characteristics of the main lift frame of a helicopter in vertical crash simulations.
- Understand how a consumer product design (cell phone or remote control) holds up during a drop or fall to the floor.
Benefits
- Obtain detailed insight into the dynamic explicit nonlinear behavior of real-world problems.
- Improve overall design quality by understanding the effects of design changes.
- Optimize the structural integrity and performance of products to meet safety, reliability, and regulatory requirements.
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