Examples of using Specimen width in English and their translations into German
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The stresses on reaching the yield limit are independent of specimen width.
The specimen width has a clear influence on the results of largescale tensile tests.
On the 80 mm thick wide-plates, the specimen width could not be altered to that extent.
The strains on fracture of the specimens, however, also decrease with with increasing specimen width.
Up to a specimen width of 300 mm, this increase is sharper than on specimens of greater width. .
The elongations at force maximum and on fracture of the specimens increase. with increasing specimen width.
The critical flaw length becomes larger with increasing specimen width, the critical a/W-ratio, however, becomes smaller.
Fig.1.35 shows the dependence of the stresses in an unnotched crosssection(gross stress)at room temperature on the ratio of notch- or crack length to specimen width a/W.
A comparison of the elongations measured at different specimen widths over a fixed test length is very problematical.
They allow the gripping force to be reduced to prevent jaw breaks, or inversely, increased,if the specimen slips continually or to accommodate varying specimen widths.
Adjustable depth-stop with scales for common specimen widths helps to ensure that the clip-on extensometer is always attached centrally to the specimen. .
The critical flaw length which, when exceeded, results in no further measurable plastic deformation in the undisturbed crosssection,increases with temperature and specimen width and the relationship between specimen width and notch length is not linear.
It is therefore understandable that with increasing specimen width the elongations increase at first and that the rise flattens out at greater widths of the specimen. .
With increasing specimen width the transition temperature Τ is cL shifted to higher values and the net stresses and total elongations measured on the wider specimens are smaller than on the narrower specimens. .
The increase of the critical flow length is not proportional to the change of specimen width, the critical a/W-ratios decrease with increasing specimen width.
For the basic test, the specimen width(200mm) is greater than the length(100mm), as some geotextiles have a tendency to contract, or"neck down", at an angle to the force direction under tensile loading.
The value derived for the critical flaw-length, at which yield stress is still attainable in the unnotched crosssection is 20 mm for specimen width of 120 mm,30 mm for specimen width of 300 mm and 35 mm for specimen width of 600 mm.
At 170 K, the specimen width has hardly any influence on the stresses, the specimens fractured, following slight plastic deformations and a small proportion of ductile crack growth, by an unstable propagated cleavage fracture Fig.I.31.
As is evident from Fig.I.28,the elongations at maximum force are then independent of specimen width, although it must be considered that specimens from 300 mm specimen width onwards have also deformed within the undisturbed cross-section.
As, simultaneously with the specimen width, the ratio between notch length and specimen width(a/W) is being altered, series of wide plates have also been studied in which at constant specimen width, the notch length and hence the a/W ratio has been altered.
In the temperature range in which the large specimens fracture after having exceeded the yield limit,there is a critical ratio of flaw length to specimen width below which the specimens undergo plastic deformation not only in the flawed zone but also in the sound portion of the cross-section.