Experimental Technique for Developing Intermediate Strain Rates in Ductile Metals

Name: Experimental Technique for Developing Intermediate Strain Rates in Ductile Metals
Brand: Biblioscholar
SKU: 9781288308781
Price: 7385 HUF
Availability: InStock

Szerző: Hugh E Gardenier

Nyelv:

Kötés: Puha kötésű

Kiadó: Biblioscholar

Elérhetőség: Beszállítói készleten

Küldés 14-21 napon belül

7 385 Ft

Quantifying the strain-rate sensitive dynamic properties of structural materials is an important are...

Információk a könyvről

Szerző

Hugh E Gardenier

Nyelv

Angol

Kötés

Könyv - Puha kötésű

Kiadva

2012

oldal

198

EAN

9781288308781

ISBN

9781288308781

Enbook ID

08242764

Kiadó

Biblioscholar

Súly

363

Méretek

189 x 246 x 11

Teljes leírás

Quantifying the strain-rate sensitive dynamic properties of structural materials is an important area of research in the solid mechanics field. Property evaluation is typically accomplished using dynamic tests which involve rapid loading or impact of specimens. In these tests, inertial forces and wave propagation make it difficult to accurately record the material response to a loading condition at an equivalent location. Furthermore, these tests typically generate high strain rates (in excess of 10 3 s - 1 and an experimental method for generating rates of strain in the intermediate strain rate regime which is relatively simple, low cost, and reliable is still lacking. This research effort develops an experimental technique for generating tensile plastic strain rates up to 10 2 s -1 in ductile metals. The technique relies on an impact from a load cell instrumented drop weight machine capable of delivering a suitable impact velocity and energy to globally deform a slotted beam specimen. At impact, a state of plastic uniaxial tensile stress is created in the ligament underneath a slot. The ligament is instrumented with an electrical-resistance strain gauge, and the strain history from the gauge is measured and stored in a digital oscilloscope. The Johnson-Cook constitutive equation is assumed to reflect the material behavior and its parameters are determined through a matching of the experimental strain history with a finite element simulation.

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Experimental Technique for Developing Intermediate Strain Rates in Ductile Metals

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