✦ LIBER ✦
A study about Ji, and δi, in three-point bend specimens with deep and shallow notches
✍ Scribed by Li Qing-Fen
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 416 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0013-7944
No coin nor oath required. For personal study only.
✦ Synopsis
An experimental study for determining 6i and Ji in three-point bend specimens with both shallow and deep notches has been described. A new method for obtaining Ji is simply introduced. Two clip gauges were used, P-V and P-A plots were simultaneously obtained on the same specimen. COD values were obtained from both P-V and P-A plots. Experimental results of three different heat-treated alloy steels show that the crack opening displacement and J-integral values of shallow cracks at initiation are much larger than those of deep cracks. The relationship of COD and J-integral is also studied.