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Sermpong Niemsakul. Determination and analysis of critical damage criteria for predicting fracture in forming process by uniaxial tensile test. Master's Degree(Materials and Production Engineering (International Program)). King Mongkut's University of Technology North Bangkok. Central Library. : King Mongkut's University of Technology North Bangkok, 2016.
Determination and analysis of critical damage criteria for predicting fracture in forming process by uniaxial tensile test
Name: Sermpong Niemsakul
keyword:
Uniaxial tensile test
LCSH:
Drawing (Metal-work)
LCSH:
Fracture mechanics
LCSH:
Steel
-- Brittleness
LCSH:
Finite element method
Abstract:
A major fracture in a forming process is a fracture and excessive thinning due
to the limit in the tensile formability of the material. This has posted the main problem
to the designer to determine the process in which it can minimize or maintain the
formability of the material during forming. Finite Element Modeling (FEM) is normally
used to as a tool to design the process and cutting tools. The accuracy of the FEM is
highly dependent on input parameters, such as material properties, flow stress, friction
coefficient, a sequence or speed cycle of the forming machine. One of the important
parameters as the input parameters is a fracture limit of the material. Many researchers
have been proposed and investigated with different models. Critical Damage Criteria
(CDC) are among of many criteria in which are used to define this fracture limitation.
However, the technique used to determine the Critical Damage Value (CDV) is still a
controversial topic. In this research, the aim is to determine the suitable CDV for
different CDCs by using uniaxial tensile test for predicting the fracture behavior of the
tensile test. Different CDCs', namely Normalized Cockcroft & Latham, Rice & Tracy
and McClintock, would be evaluated and tested the accuracy for predicting the fracture
on the tensile test specimen of material SPHC [JIS G3131] with thickness of 4 mm. The
Normalized Cockcroft & Latham could give a good prediction in both load vs. stroke
prediction and fracture behavior of the workpiece after the tensile test and forming of
the part which has the same stress path as the uniaxial tensile stress such as pulley.
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Name: Yingyot Aue-u-lan
Role:
Thesis Advisors
Email :
yingyot.a@tggs.kmutnb.ac.th, yingyot.a.pe@tggs-bangkok.org
Created:
2016
Modified:
2564-04-07
Issued:
2021-04-07
วิทยานิพนธ์/Thesis
application/pdf
eng
DegreeName: Master of science
Level: Master's Degree
©copyrights King Mongkut's University of Technology North Bangkok
RightsAccess:
ใช้เวลา
0.029796 วินาที
Sermpong Niemsakul
| Title | Contributor | Type |
|---|---|---|
| Determination and analysis of critical damage criteria for predicting fracture in forming process by uniaxial tensile test
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Sermpong Niemsakul | Yingyot Aue-u-lan | วิทยานิพนธ์/Thesis |
Yingyot Aue-u-lan