Modeling of Sandwich Sheets with Metallic Foam

• Type: Article in International Conference Proceedings Book
• Date: 2011

Authors

Mata, H (Author) Other; Natal N Jorge (Author) FEUP; Santos, A (Author) FEUP; Fernandes, AA (Author) FEUP; Valente, RAF (Author) Other; Parente, MPL (Author) FEUP

Conference proceedings International

Title: 8TH INTERNATIONAL CONFERENCE AND WORKSHOP ON NUMERICAL SIMULATION OF 3D SHEET METAL FORMING PROCESSES (NUMISHEET 2011), PTS A AND B

Pages: 725-732

8th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes (NUMISHEET 2011)

Seoul, SOUTH KOREA, AUG 21-26, 2011

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 2 Citations

Scientific classification

FOS: Engineering and technology > Mechanical engineering

Other information

Authenticus ID: P-003-005

DOI: 10.1063/1.3623678

Abstract (EN): World-wide vehicles safety experts agree that significant further reductions in fatalities and injuries can be achieved as a result of the use of new lightweight and energy absorbing materials. On this work, the authors present the development and evaluation of an innovative system able to perform reliable panels of sandwich sheets with metallic foam cores for industrial applications. The mathematical model used to describe the behavior of sandwich shells with metal cores foam is presented and some numerical examples are presented. In order to validate those results mechanical experiments are carried out. Using the crushable foam constitutive model, available on ABAQUS, a set of different mechanical tests were simulated. There are two variants of this model available on ABAQUS: the volumetric hardening model and the isotropic hardening model. As a first approximation we chose the isotropic hardening variant. The isotropic hardening model available uses a yield surface that is an ellipse centered at the origin in the p-q stress plane. Based on this constitutive model for the foam, numerical simulations of the tensile and bulge test will be conducted. The numerical results will be validated using the data obtained from the experimental results.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8