Suchergebnisse

This paper describes the implementation of a new material model into LS-DYNA version 960, LSTC (1-4), a material model capable of predicting the TRIP-effect of HyTensX for different forming operations in different temperature ...

The Crash Simulation of Magnesium Structures with Finite Element Methods demands the use of suitable material and failure models. An associated plasticity model describing the complex asymmetric yield behaviour in tension and ...

The Hill-Ogden elastic constitutive equation for incompressible and compressible rubber-like materials is presented. The derivation and computer programs to determine the material constants for these equations from uniaxial and ...

Presented is a theoretical description and computation method to calculate configurational forces in the context of the finite element method. We take fully 3D-case dynamics and large deformations in hyper-elastic materials into ...

Ceramic materials are commonly used in protective armour applications and may be subject to high-energy ballistic impacts in these situations. Under simple loading conditions, ceramics may be regarded as elastic-brittle materials. ...

The simulation of rubber materials is becoming increasingly important in automotive crashworthiness simulations. Although highly sophisticated material laws are available in LS-DYNA to model rubber parts, the determination of material ...

The presentation "Computational Micro-Mechanical Model of Composite & Flexible Woven Fabric with Fiber Reorientation" begins with the motivation of the model development and states different kind of problems. Further topics are about ...

In an evaluation of crashworthiness for the cars that are made of aluminum alloys, the evaluations that consider a fracture phenomenon come to be needed because conventional aluminum alloys have low fracture strain (10 - 20%). Since ...

Occupant restraint systems such as seatbelts and airbags are designed to cushion the motion of the occupant when a collision occurs. For an occupant sitting in a normal driving or passenger position, the airbag significantly reduces ...

Recent efforts to model fully coupled CFD-airbag processes have motivated the implementation of a gas mixture model in LS-DYNA. The new model, *MAT GAS MIXTURE, allows the mixing of up to eight different gases. It is designed to ...