Open AccessEnhance the Mechanical Strength of Metal Plates by Processing the Shape of the Bulge
Author(s) -
Zhiyou Han,
Yongdang Chen
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/631/3/032021
Subject(s) - bulge , materials science , deformation (meteorology) , stress (linguistics) , displacement (psychology) , composite material , structural engineering , ultimate tensile strength , engineering , physics , psychology , stars , linguistics , philosophy , astronomy , psychotherapist
The shape change of spherical bulge can affect the mechanical strength of sheet metal parts. The strength contrast experiment between the local bulge plate and the flat plate was designed to analyze the influence and mechanism on mechanical strength from local bulge shape change. The experiment took an approach measuring the combined displacement and stress of each unit on the stressed surface and the central axis under the same thickness and load to compare the difference of mechanical strength. The results show that the bulge plate brings maximum stress and maximum displacement less than 6% of the plate, smaller mean stress and displacement, lower content of strong stress and high deformation unit, and it is more obvious when the load direction is the same as the bulge direction. The method can provide a new idea for enhancing the mechanical strength of components and reducing the amount of material used in equipment manufacturing.