Posts Tagged ‘composite’
OptiStruct offers a comprehensive optimization package aimed to simplifying the design of composite structures. This package includes three main optimization phases and associated techniques: Concept (free size), Dimension (size) and Sequence (shuffling). This video will focus on phase one, concept design through free size optimization.
|Giuseppe Resta - Business Development Manager, Global Automotive|
It doesn’t seem so long ago that passenger safety and vehicle crashworthiness were the battleground where automakers differentiated their products. Now, as many OEMs have created product development systems that rely on a CAE-driven strategy to deliver excellent passive safety performance, it appears to have taken a backseat to miles-per-gallon. Almost every car commercial touts greater fuel efficiency and seeks to validate the manufacturer’s environmental credentials.
Both safety and gas mileage advances have been pushed by regulation and pulled by consumer demand. Now that the United States has set the 54.5 mpg Corporate Average Fuel Efficiency (CAFE) standard for 2025 and lower CO2 emissions have been mandated in Europe, we are entering a new era of increased challenge that could lead to significant change in the way cars are designed and constructed. OEMs and suppliers are reviewing every component and considering the technologies available to meet these new demanding standards, including investment in engineered plastic and carbon-fiber-reinforced plastics (CFRP) that offer high stiffness-to-weight and strength-to-weight ratios.
Bob Yancey- Executive Director – Global Aerospace
Composites offer a number of compelling advantages, but they also present some daunting design challenges. For example, the orthotropic nature of continuous-fiber-reinforced composites presents the designer with many more design variables to consider, such as ply angles, fiber volume fractions and stacking sequences. Finding an optimal design with so many design variables can be quite challenging. In addition, there is little design experience with composite structures, so often designers develop “quasi-isotropic” designs that look similar to their metal part-designs. (more…)
ATK Aerospace Structures in Clearfield, UT is a premier aerospace design and manufacturing company focusing on the design and manufacture of composite structures.
ATK used Altair® OptiStruct® to provide the conceptual design ideas necessary to reduce the Altair Lunar Lander Descent Module weight and meet specified design requirements not achieved in the baseline design. In addition ATK was able to evaluate the application of composites while optimizing structural architecture of the lander module.