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QUESTION REGARDING FRACTURE TOUGHNESS TESTING
HI ALL
Actually I am a Student of 2 year M. Tech. studying in S. V. National Institute of Technology, Surat My name is Zoeb K Lakdawala. My topic for disseration is 'Implemenation of Fracture Mechanics on Pressure Vessels". In my disseration I want to develop a code on fracture mechanics and compare it with standard Packages like ANSYS & ABAQUS.
Actually In this project work i also wanted to conduct fracture toughness test using ASTM E - 1820 for that i have prepared the specimen as per ASTM E - 399( For measuring Stress Intensity Factor) & ASTM E - 1820(For Determination of J-R curve) using material SA 516 GR 70 but the major hindrence while reading the ASTM E - 1820 is that i how can i measure dm = total measured load-line displacement.
I will be most thankful to you if you give me suggestion regarding that
Hello zoeb I am also
Hello zoeb
I am also working with fracture toughness experiment. There are many possibilities to measure the load-displacement curve.
We used the split Hopkinson pressure bar for dynamic impact and measured the load-displacement values from classical theory.
So it depends on insturement you are employing if you want to measure the load-displacement curves experimentally.
I read Prof. C.T. Sun's paper (J.L. Tsai, C. Guo, and C.T. Sun, “Dynamic Delamination Fracture Toughness in Unidirectional
Polymeric Composites,” Composites Science and Technology, Vol. 61, 2001, pp. 87-94) and used crack gage to detect the crack
initiation time.
thanks
Thanks Chul JIn syn
for your reply can you suggest me some reference books for measuring the same
regards
Zoeb Lakdawala
Plane-Strain Fracture Toughness
Hi all
I am planning to estimate plane-strain fracture
toughness of my material based on E1820 with using one sample. There
are two procedurs in this standrad: 1) the basic method & 2) the
resistance curve method. I am looking for J1c and not R-curve. Do you
know if it is possible to use resistance curve method to get the
plane-strain facture toughness?
Thank you.
SEK