Dies ist eine Übersichtsseite mit Metadaten zu dieser wissenschaftlichen Arbeit. Der vollständige Artikel ist beim Verlag verfügbar.
An Investigation of the Mechanical Properties of Materials at very High Rates of Loading
2.957
Zitationen
1
Autoren
1949
Jahr
Abstract
A method of determining the stress-strain relation of materials when stresses are applied for times of the order of 20 microseconds is described. The apparatus employed was a modification of the Hopkinson pressure bar, and detonators were used to produce large transient stresses. Thin specimens of rubbers, plastics and metals were investigated and the compressions produced were as high as 20% with the softer materials. It was found that whilst Perspex recovered almost as soon as the stress was removed, rubbers and polythene showed delayed recovery, and copper and lead showed irrecoverable flow. The phenomenon of delayed recovery is discussed in terms of the theory of mechanical relaxation and memory effects in the material.
Ähnliche Arbeiten
VI. The phenomena of rupture and flow in solids
1921 · 10.546 Zit.
Fracture characteristics of three metals subjected to various strains, strain rates, temperatures and pressures
1985 · 6.054 Zit.
Analysis of Stresses and Strains Near the End of a Crack Traversing a Plate
1957 · 5.344 Zit.
Fracture of Brittle Solids
1993 · 4.734 Zit.
On the ductile enlargement of voids in triaxial stress fields∗
1969 · 4.717 Zit.