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White Paper: Frequency FE-Based Weld Fatigue Life Prediction of Dynamic Systems

In most aspects of mechanical design related to a motor vehicle there are two ways to treat dynamic fatigue problems, that is time domain vs. frequency domain approach. Time domain approaches are the most common and most widely used especially in the automotive industries and accordingly, it is the method of choice for the fatigue calculation of welded structures.

White Paper: Simultaneous Durability Assessment and Relative Random Analysis Under Base Shake Loading Conditions

For many automotive systems, it is required to calculate both the durability performance of the part and to rule out the possibility of the collision of individual components during severe base shake vibration conditions. The check for “collisions” has previously been done separately with the resultant “doubling up” of the analysis being both time-consuming and cumbersome. However, new technological advances now make it possible to do both these calculations at the same time and this paper will present results for an exhaust model analyzed using NASTRAN.

White Paper: Creating Accurate Surrogate and/or Accelerated Loads for Known Models or Structural Systems Types

For laboratory-based simulation, especially of parts or subsystems, there is a need (usually because of available test equipment) to simplify the loads down to single input loads one at a time (eg, X, then Y, then Z) and this poses significant challenges. Two common approaches are currently used. This paper presents the details of a new approach which is a variation of the FDS approach but using the actual system properties.

White Paper: OHB & CAEfatigue - Simultaneous Durability Assessment and Relative Random Analysis Under Base Shake Loading Conditions

For many aerospace systems it is required to calculate both the durability of the part and to rule out the possibility of collision of individual components during severe base shake vibration conditions. Advanced frequency domain methods now exist to enable the durability assessment to be undertaken fully in the frequency domain and utilizing the most advanced and efficient analysis tools.

Fatigue, Composites & Optimization: Themes for Partner Presentations at the Americas Altair Technology Conference

Americas ATC 2015 had one of the highest attendance in history, with about 750+ users in a span of 3 days attending workshops and presentations. Close to half the number of partners from the APA were present to interact with customers and showcase their technologies. Sridhar highlights the key points covered in the presentations.

CAEfatigue SAE Paper

Technical paper discussing advances relating to fatigue calculations for combined random and deterministic loads.

CAEfatigue Technical Paper for UK NAFEMS

Whitepaper discussing fatigue calculations for multi-input random and deterministic loads in frequency domain.

CAEfatigue Technical Paper for US NAFEMS

Whitepaper discussing improved methods of frequency domain fatigue calculations for automotive systems.

CAEfatigue Presentation Addressing Time v. Frequency Domain Analysis for Large Automotive Systems

Presentation covering development and application of time and frequency domain analysis in the automotive industry.

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