PSI - Issue 8

V. Dattoma et al. / Procedia Structural Integrity 8 (2018) 444–451

448

Author nam

e / Structural Inte

grity Procedia 0

0 (2017) 000–00 0

5

ever intro exten conf

y possible und duce signific someter hav igurations are

esirable later ant errors in ing a gage l illustrated in

al movement the test. Due ength of 12.5 Figure 4.

of the fixture to the reduc mm has be

is avoided, w ed dimension en used to m

ithout introd s of the wind easure strain

ucing any rele ows existing around hole

vant load tha on the fixtur during test.

t can e an Test

a)

b)

Fig.

4. Test configura

tion: a) Open Ho

le Tension; b) Op

en Hole Compre

ssion

3. E

xperimental Mechanical s able 3 and 4 wing the ind idering the h idered in this icially the loc case of com ber of extenso the mean dat someter is av

results

3.1.

trength reports the m ication of the ole, and to th work, since al thickness o pressive test meter slippa a of elongatio oided. All da

T Follo cons cons artif num only exten In

ean values of standards and e nominal thi the use of th f the material the data of ges during the n to failure f ta normalized

0 0 0 0 lts of OHT mech F OHT [MPa] mean st. dev .951 0.037 .925 0.034 .961 0.041 .994 0.032 1.008 0.035 the mechanic the common ckness. This e local thickn , could lead to strain to fail test avoided or OHC test i to the mecha .

al strength fo practice, stre fact is partic ess, of the sp inappropriat ure and elast the possibilit s reported, ca nical propert

r tensile and ss is referred ularly import ecimen, that e conclusions ic modulus a y to obtain re lculated with ies of the pris

compressive to the gross s ant in the cas have been in . re not report liable data. Fo the few tests tine material f

tests respecti ection, i.e. wi e of the spec troduced redu ed since the r the same re where slippa or privacy re

vely. thout imen cing large ason ge of ason.

Table 3. E Specimen

xperimental resu Set

anical tests.

E OHT [M

Pa]

ε m

ax [%]

mean 0.797 0.857 0.946 0.911 0.866

s

t. dev. 0.061 0.046 0.050 0.062 0.020

mean 1.271 1.129 1.031 1.302 1.291

st. dev. 0.088 0.113 0.056 0.050 0.074

50-33-24 50-33-24 50-33-24 17-67-24 25-50-16

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