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triaxial Hopkinson techniques

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Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003301
EISBN: 978-1-62708-176-4
...Abstract Abstract Triaxial Hopkinson techniques can be used to simultaneously subject a sample to axial and lateral compressions. The lateral compression may be applied through a pneumatic pressure vessel or dynamically using a special Hopkinson technique. This article reviews these two...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003293
EISBN: 978-1-62708-176-4
... Indentation Testing.” another interesting development based on the split-hopkinson bar is the deformation of a sample at high strain rates while it is under a triaxial state of stress for both static and dynamic lateral confinement. (This is discussed in the article “Triaxial Hopkinson Techniques...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003303
EISBN: 978-1-62708-176-4
... the sample. This technique, termed momentum trapping , has continued to evolve to prevent large radial release waves from entering the sample and to prevent Hopkinson fracture (spallation) for a variety of sample configurations and shock-loading methods. When ideally trapped, the residual strain, ε res...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009010
EISBN: 978-1-62708-185-6
... Rate Testing” in Mechanical Testing and Evaluation , Volume 8 of the ASM Handbook , 2000, p 427). For strain rates from 100 to 1000 s −1 , the Hopkinson (Kolsky)-bar method is used. This article and the following discussions only consider isothermal conditions and strain rates below 0.1 s −1 , where...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003308
EISBN: 978-1-62708-176-4
... on laboratory specimens to simulate structural failures, eliminating the need to destructively test large engineering components. The simulation of structural component failure by notched-bar impact tests is based on severe conditions of high loading rate, stress concentration, and triaxial stress state...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005508
EISBN: 978-1-62708-197-9
...Abstract Abstract This article describes the most commonly used test methods for determining flow stress in metal-forming processes. The methods include tension, ring, uniform compression, plane-strain compression, torsion, split-Hopkinson bar, and indentation tests. The article discusses...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001831
EISBN: 978-1-62708-181-8
... history, environmental effects, and material quality. The principal technique used to analyze this evidence is electron fractography. Fundamental to the application of this technique is an understanding of how metals fracture and how the environment affects the fracture process. This article...