✦ LIBER ✦

Elastic Properties of the Tobacco Leaf

✍ Scribed by Zachary A. Henry; Haibing Zhang; Baoyi Su; Dennis O. Onks

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 249 KB
Volume: 76
Category: Article
ISSN: 0021-8634
DOI: 10.1006/jaer.2000.0536

No coin nor oath required. For personal study only.

✦ Synopsis

A stress}strain model was determined for elastic parameters of the tobacco leaf that permitted comparison among leaves of di!erent characters. Tests were made (1) on leaves from three stalk positions, (2) at two rates of loading, and (3) at four nominal leaf moisture contents. Tangent modulus at the in#ection point and the secant modulus at failure were discovered to be the most de"nite basis for di!erences observed in model curves due to stalk position, loading rate and moisture contents. The coe$cients of the last two terms of the model also showed some potential as indicators of elasticity at lower moisture contents. The most e!ective separation of e!ects occurred below 20% moisture content (w.b.). Energy absorbed and stress and strain values showed variation with treatment but lacked repeatability across treatments to be used as indicators of leaf character. Elastic parameter values were a!ected by rate of loading as well as moisture content and e!ective evaluation will require identi"cation of both.

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