2024 : 4 : 22
Mohammadreza sheykholeslami Borghani

Mohammadreza sheykholeslami Borghani

Academic rank: Assistant Professor
ORCID: https://orcid.org/0000-0003-0735-0225
Education: PhD.
ScopusId: 56079339100
Faculty: Engineering
Address: Arak University
Phone: 32625722

Research

Title
The effect of the roller profile on cave-in defect in reshaping process by considering nonlinear combine strain hardening
Type
JournalPaper
Keywords
Roll forming, reshaping, 2D-elastic plastic, cave-in defect, square tube, nonlinear combines strain hardening
Year
2022
Journal Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture
DOI
Researchers Siamak Mazdak ، Hasan Moslemi Naeni ، Mohammadreza sheykholeslami Borghani ، Manabo Kiuchi ، Hesam Validi

Abstract

The reshaping process of pipes is an important method in producing non-circular pipes. Desired profile products are produced by passing round pipe through the rotating rollers. Cave-in defect is one of the common defects in the reshaping process. Roller design issues can decrease this kind of defect. In this paper, a method based on the slab method and the incremental plasticity has been presented to the numerical study of a 2D reshaping process. For investigating the Cave-in defect, the contact model has been developed. The concept of element elongation has been introduced to increase the accuracy of the contact model. Based on the presented method, numerical software has been developed to simulate the 2D reshaping process. Elastic-plastic equations for this subject have been driven based on the incremental method, J yielding criterion, and non-linear combined hardening. The effects of the radius of …