NUMERICAL ANALYSIS OF DAMAGE DURING HOT FORMING
Journal Title: Computer Methods in Materials Science - Year 2018, Vol 18, Issue 3
Abstract
The main aim of the presented research is the analysis of damage evolution in 16MnCrS5 steel during hot forming based on results obtained from finite element modelling. Particular attention is put on the interaction between dynamic recrystallization (DRX) and damage initiation at the matrix-inclusion interface. Moreover, a modified Gurson-Tvergaard- Needleman (GTN) model is proposed with the nucleation criterion taken from an extended Horstemeyer model, which predicts damage nucleation based on material softening due to the DRX and stress state in the material.
Authors and Affiliations
Joanna Szyndler, MUHAMMAD IMRAN, MUHAMMAD JUNAID AFZAL, MARKUS BAMBACH
Keywords
Related Articles
- EP ID EP539147
- DOI -
- Views 102
- Downloads 0
A VISION SYSTEM TO SUPPORT DETERMINATION OF MECHANICAL PROPERTIES OF TUBES REQUIRED FOR COMPUTER MODELLING OF TUBE HYDROFORMING
Reliability of computer modelling of tube hydroforming depends strongly on mechanical properties of tubes, which are difficult to determine and sensitive to tube production methods. Some developments in experimental set-...
NONLINEAR DYNAMIC ANALYSIS OF AN AXIALLY MOVING POROUS FG PLATE SUBJECTED TO A LOCAL FORCE WITH KINETIC DYNAMIC RELAXATION METHOD
In some engineering applications like moving ships the axially moving FG structures have to be investigated. In this paper, the nonlinear response and stability of an axially moving porous FGM plate under a local concent...
USING NEURAL NETWORKS TO PREDICT THE FLOW CURVES AND PROCESSING MAPS OF TNM-B1
The ability to predict the behavior of a material is vital in both science and engineering. Traditionally, this task has been carried out using physics-based mathematical modeling. However, material behavior is dependent...
APPLICATION OF THE IMMUNE ALGORITHM IRM FOR SOLVING THE INVERSE PROBLEM OF METAL ALLOY SOLIDIFICATION INCLUDING THE SHRINKAGE PHENOMENON
In the paper the mathematical model of the inverse one-dimensional problem of binary alloy solidification, with the material shrinkage phenomenon taken into account, is defined. The process is described by using the mode...
THE IMAGING ALGORITHM FOR THE ULTRASONIC EVALUATION OF METAL CASTINGS BY THE APPLICATION OF AUTOMATED TESTING SYSTEMS BASED ON A SIX DEGREE OF FREEDOM ROBOTIC MANIPULATORS
Complex-shaped surface represents one of the challenges in ultrasonic testing of metal castings. This conditions the growing interest in development and application of the automated testing system based on a six degrees...