Week-7 Head Impact

Project Description-                       Foreign object damage (FOD) is a big problem in aviation industry that reduces the level of safety for an aircraft. Foreign object damage (FOD) is a big problem in aviation…

The aim of this challenge is to create jloint using constraint joint card. four types of joints are demonstarted here   they are  1) revolute joint 2) spherical joint 3) cylindrical joint 4) translational joint   Revolute joint-   A revolute joint  has one-degree-of-freedom , it…

Modelling a Hyperelastic material from raw data   Hyperelastic material-                          these materials have the properties or ability to regain it original shape even after applying large strains, the material may sustain upto 500% of strain.…

OBJECTIVE-  the objective of this project is to extract stress-strain data from a curve and find young's modulus and yield stress, convert into true stress, effective plastic strain. the extracted data must be loaded into material card and simulated by simple dog bone specimen   Procedure 1. extract data from…

Introduction-   Head Impact test is considered as very important aspect  in pedestrian Safety in vehicle safety engineering. this test and simulation  must be done by all vehicles releasing in market based vehicle safety regulatory body(EuroNCAP). Head impact test effect or injury is measured in HIC(Head…

Introduction-   Mass scaling- the concept of mass scaling is used to reduce the Computational time for solving a simulation by adding non physical mass. we can initiate mass scaling in ls dyna by CONTROL_TIMESTEP card, by means of Dt2ms and Tssfac(time step scaling factor)    Objective-     the…

Introduction the given material is ogden rubber, it is hyper elastic material. hyperelastic material  are modeling rubber -like material in which deformation is large.hyperelastic material use strain energy to derive the relation between stress and strain  the given material properties are of ogden material. …

Introduction             This project is about modelling spotwelds using beams and solid element between two shell sections.  Comparison of  beam and element are made by comparing shear force and axial force. Given File       …

Challenge 4   Crash box Simulation   Introduction-                 Crash box is important component in determining the crashworthiness of vehicle. It is used to absorb kinetic energy during Testing of crashworthiness of vehicle or during…

CHALLENGE Aim- to create a simulation of drop test to Mobile phone with given meshed .K file Procedure- Import the .K file to LS prepost The file consists of three parts, but for drop test only two files are required for simulation Apply boundary spc for base plate in all Dof Apply set for Mobile part nodes and titled…