Skip to content. | Skip to navigation

Sections
Personal tools
Personal tools

2018

Parameter Identification of the *MAT_036 Material Model using Full-Field Calibration
Determination and Optimisation of a Temperature-Dependent-Failure curve for High-Strength Aluminium Alloys applicable for Hotforming
Shape optimization for CFD analysis using LS-OPT, ANSA and LS-DYNA ICFD
DIC-based Full-Field Calibration using LS-OPT®: An Update
This paper extends a 2017 study on full-field calibration using Digital Image Correlation (DIC) and the Finite Element Method to identify parameters of a material model developed for elastoplasticity. DIC is an optical method which provides full-field displacement or strain measurements for mechanical tests of materials and structures. It can be combined with the corresponding fields obtained from a Finite Element Analysis to identify ...
Application of a Full-Field Calibration Concept for Parameter Identification of HS-Steel with LS-OPT®
n recent years results of digital image correlation (DIC) techniques have significantly improved in terms of accuracy, resolution as well as the speed of experimental strain measurement. The current availability of 2D or even 3D surface strain history during loading allows new approaches in constitutive parameter identification. In addition, localization (Fig 1.) exhibited in the numerical simulation can be integrated with DIC to identify ...
Multi-disciplinary Optimization using LS-DYNA®
Crashworthiness, NVH (Noise Vibration & Harshness) are two distinct as well as very inter-connected attributes/disciplines of vehicle development process. As objectives of both are very differing, it is a challenge to design a vehicle equally performing in both with the global objectives of mass reduction and comfort. LS-OPT® is the tool, which can perform a multi-disciplinary optimization. Here we will perform a frontal crash of the vehicle ...
Classification-based Optimization and Probabilistic Analysis Using LS-OPT®
LS-OPT is a standalone Design Optimization and Probabilistic Analysis package with an interface to LS-DYNA® that is capable of solving a variety of reliability assessment and single or multi-disciplinary design problems. It consists of a flexible framework with various methods that are suited to specific types of problems. The solution methods in LS-OPT are broadly categorized as direct or metamodel-based. Metamodel-based methods build ...
Optimisation of Fixturing Clamps to Improve Panel Measurement Robustness
Tolerance measurement of sheet metal parts – such as those used in body in white assembly – is a critical task for the automotive industry that can lead to significant financial losses as a result of poor gauge R&R design and data misinterpretation. Current measurement systems use clamps to load panels onto fixtures. However, since non-rigid parts deflect with clamping pressure and under their own self-weight, measurement reproducibility and ...
Shape Optimization with LS-DYNA® Suite For MDO (Multidisciplinary Design Optimization)
LS-DYNA has been able to optimize several different calculations to meet each criterion with LS-OPT® freely. In previous year, we showed MDO (Multidisciplinary Design Optimization) would be great powerful solution that LS-DYNA suite including LS-OPT and LS-PrePost® would be able to solve crucial problem during development of product. In this study, we are trying shape optimization to solve trade-off which occurs in the process of product ...