Damage and failure characterization of 7075 aluminum alloy hot stamping

7000 series high strength aluminum alloys are increasingly used in manufacturing automobile body parts to meet the more stringent demands for automobile lightweight. Hot stamping of 7000 series high strength aluminum alloys is a complex thermal-mechanical coupling process and precise simulation is n...

Full description

Saved in:
Bibliographic Details
Published in:Journal of mechanical science and technology 2022, 36(1), , pp.351-357
Main Authors: Zhang, Zhiqiang, Cui, Yuejie, Chen, Qingmin
Format: Article
Language:English
Subjects:
Alloys
Aluminum alloys
Aluminum base alloys
Automotive bodies
Axial stress
Control
Damage assessment
Dynamical Systems
Engineering
Finite element method
Heat resistant alloys
High strength alloys
High temperature
Hot stamping
Industrial and Production Engineering
Mechanical Engineering
Original Article
Strain
Vibration
Weight reduction
기계공학
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:7000 series high strength aluminum alloys are increasingly used in manufacturing automobile body parts to meet the more stringent demands for automobile lightweight. Hot stamping of 7000 series high strength aluminum alloys is a complex thermal-mechanical coupling process and precise simulation is needed to predict material fracture. To obtain damage model of 7075 aluminum alloy in hot stamping, five different stress triaxiality specimens were designed. The fracture strain, critical strain and average stress triaxiality of different specimens were obtained by the hybrid finite element simulation and experiment (FE-EXP) method. GISSMO model of 7075 aluminum alloy at 400 °C was established. Compared with the experimental results of U-shaped part hot stamping under different lubrication conditions, the calibrated GISSMO model was demonstrated to predict the damage behavior of 7075 aluminum alloy during high temperature deformation accurately.
ISSN:1738-494X
1976-3824
DOI:10.1007/s12206-021-1234-4