A technique for assessing ductile fracture initiation / Azua Abdul Rahim

Abdul Rahim, Azua (1991) A technique for assessing ductile fracture initiation / Azua Abdul Rahim. [Student Project] (Unpublished)

Abstract

The objectives of this project is to determine the value of J at initiation of crack growth -Jxc.Jxc is the characteristic of the materials at or near the onset of crack. Multiple specimen test have been developed for measuring the value of J-Integral for the steel Grade 50D. These are: (i) standard size, And (ii) oversize with side grooving The results indicate that the values of Jxc using standard size using Instron 8032 machine accordingly to ASTM E813-81 is 12.1 kJ/m2, these value is invalid. Jxc for oversize specimen can not be obtained because the crack extension cannot growth. That problems causes by the machine. These technique consumed more time, materials and cost. There fore application of single test specimen method advisable for future research.

Metadata

Item Type:	Student Project
Creators:	Creators Email / ID Num. Abdul Rahim, Azua 89005330
Contributors:	Contribution Name Email / ID Num. Thesis advisor Mohd Said, Mohd Nor UNSPECIFIED
Subjects:	T Technology > TJ Mechanical engineering and machinery > Machine construction (General)
Divisions:	Universiti Teknologi MARA, Shah Alam > Faculty of Mechanical Engineering
Programme:	Advanced Diploma in Mechanical Engineering
Keywords:	Fracture concepts, J-Integral, multiple specimen
Date:	1991
URI:	https://ir.uitm.edu.my/id/eprint/73294