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Article
Mode III fatigue crack propagation in low alloy steel
To provide a basis for estimating fatigue life in large rotating generator shafts subjected to transient oscillations, a study is made of fatigue crack propagation in Mode III (anti-plane shear) in torsionally...
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Article
Effects of friction and high torque on fatigue crack propagation in Mode III
Turbo-generator and automotive shafts are often subjected to complex histories of high torques. To provide a basis for fatigue life estimation in such components, a study of fatigue crack propagation in Mode I...
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Chapter
Fatigue Crack Growth Under Mode I And II Loading
The effects of loading history (transient torque and cyclic bending) on failure modes and crack growth rates in, turbo-generator shafts are investigated. The results show that failure mode is Mode III fatigue ...
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Article
Study of the interface and its effect on mechanical properties of continuous graphite fiber-reinforced 201 aluminum
The formation of fiber-matrix interfacial reaction zone and its impact on mechanical properties of Gr/201 Al composite (41 vol pct fiber) was evaluated in the as-received condition and after heat treatment in ...
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Chapter
Nondestructive Evaluation of Damage and Degradation of Mechanical Properties in Composite Panels Subjected to Impact
Materials. The materials used in this research were T300/5208 unidirectional graphite/epoxy composite panels supplied by the Army Materials Technology Laboratory. The panels were in square form of 12 in. by 12. i...
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Article
High-strength high-conductivity Cu-Nb microcomposite wire by powder metallurgy
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Article
Strength and microstructure of powder metallurgy processed restacked Cu-Nb microcomposites
Powder metallurgy (PM) was used to fabricate Cu-Nb microcomposites both at the laboratory and intermediate industrial scales. Ultimate tensile strengths (UTSs) of 1.6 and 1.035 GPa were obtained for the labora...
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Article
A comparison of two Nextel 440 Fibre reinforced aluminium composites using acoustic emission
The acoustic emission (AE) response and mechanical behaviour of two Nextel 440 fibre reinforced aluminium composites were compared. The total cumulative AE events were found to occur in two regions. The first ...
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Article
Fatigue-life prediction of SiC particulate reinforced aluminum alloy 6061 matrix composite using AE stress delay concept
A study of the residual fatigue life prediction of 6061-T6 aluminum matrix composite reinforced with 15 vol % SiC particulates (SiCp) by using the acoustic emission technique and the stress delay concept has been...
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Article
The effect of processing variables on the microstructures and properties of aluminum brazed joints
Aluminum brazed joints are used extensively in the automotive and aircraft industries. In order to insure the integrity of the bond, the effects of processing variables on the quality of the bond must be under...