Chemistry Material Science Lab Consulting Report
Consulting Report
Mechanical Properties
Cold-Rolled Steel
Student: Predrag Bogunovic
STUDENT ID: 11807777
DATE: 4-APR-2014
1 TABLE OF CONTENTS
1
Introduction .................................................................................................................................... 2
2
Methods .......................................................................................................................................... 2
3
Results............................................................................................................................................. 3
4
Discussion........................................................................................................................................ 4
5
Conclusion ....................................................................................................................................... 4
1
1 INTRODUCTION
This report elaborates on mechanical properties such as 0.2% Offset Proof Stress,
Ultimate Tensile Stress and Young’s Modulus of cold-rolled steel. This material will be used by Ace Flying Fox Ltd for the purpose of building a prototype supporting gantry which has to sustain a maximum stress of 670MPa.
2 METHODS
Five samples of cold-rolled steel of 50mm gauge length, 3mm thickness and
12.5mm width are tested to AS 1931-2007 Metallic Materials – Tensile Testing at
Ambient Temperature with SHIMADZU Tensile Strength Tester Machine.
Fig 1. SHIMADZU Tensile Strength Tester Machine.
The data is collected in the sense of Applied Load (N) vs. Displacement (mm).
Average Applied Load and Displacement from all five specimens is then used to calculate the Stress (MPa) and Strain. Stress/Strain graph is then plotted in order to find the Yield Point (YP) and Ultimate Tensile Stress (UTS) by visual inspection of the graph. Young’s Modulus is then found by dividing Stress by Strain in the elastic region. 0,002 Strain is located on the Strain axis of the graph and
Mechanical Properties
Cold-Rolled Steel
Student: Predrag Bogunovic
STUDENT ID: 11807777
DATE: 4-APR-2014
1 TABLE OF CONTENTS
1
Introduction .................................................................................................................................... 2
2
Methods .......................................................................................................................................... 2
3
Results............................................................................................................................................. 3
4
Discussion........................................................................................................................................ 4
5
Conclusion ....................................................................................................................................... 4
1
1 INTRODUCTION
This report elaborates on mechanical properties such as 0.2% Offset Proof Stress,
Ultimate Tensile Stress and Young’s Modulus of cold-rolled steel. This material will be used by Ace Flying Fox Ltd for the purpose of building a prototype supporting gantry which has to sustain a maximum stress of 670MPa.
2 METHODS
Five samples of cold-rolled steel of 50mm gauge length, 3mm thickness and
12.5mm width are tested to AS 1931-2007 Metallic Materials – Tensile Testing at
Ambient Temperature with SHIMADZU Tensile Strength Tester Machine.
Fig 1. SHIMADZU Tensile Strength Tester Machine.
The data is collected in the sense of Applied Load (N) vs. Displacement (mm).
Average Applied Load and Displacement from all five specimens is then used to calculate the Stress (MPa) and Strain. Stress/Strain graph is then plotted in order to find the Yield Point (YP) and Ultimate Tensile Stress (UTS) by visual inspection of the graph. Young’s Modulus is then found by dividing Stress by Strain in the elastic region. 0,002 Strain is located on the Strain axis of the graph and