Diffraction of SH-Waves by an Edge CrackSource: Journal of Applied Mechanics:;1979:;volume( 046 ):;issue: 001::page 101Author:S. K. Datta
DOI: 10.1115/1.3424479Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Diffraction of an antiplane shear (SH-) wave by an edge crack in a semi-infinite elastic medium is studied here. Asymptotic expansions for the scattered field both near and far from the crack are obtained for the case when the wavelength is large compared to the length of the crack. Near-field expansion is used to compute the dynamic stress-intensity factor at the tip of the crack. Also, the far-field expansion gives the scattered displacement amplitude, which is useful in ultrasonic nondestructive evaluation.
keyword(s): Diffraction , Waves , Fracture (Materials) , Displacement , Shear (Mechanics) , Wavelength , Nondestructive evaluation AND Stress ,
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| contributor author | S. K. Datta | |
| date accessioned | 2017-05-08T23:06:15Z | |
| date available | 2017-05-08T23:06:15Z | |
| date copyright | March, 1979 | |
| date issued | 1979 | |
| identifier issn | 0021-8936 | |
| identifier other | JAMCAV-26112#101_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/91851 | |
| description abstract | Diffraction of an antiplane shear (SH-) wave by an edge crack in a semi-infinite elastic medium is studied here. Asymptotic expansions for the scattered field both near and far from the crack are obtained for the case when the wavelength is large compared to the length of the crack. Near-field expansion is used to compute the dynamic stress-intensity factor at the tip of the crack. Also, the far-field expansion gives the scattered displacement amplitude, which is useful in ultrasonic nondestructive evaluation. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Diffraction of SH-Waves by an Edge Crack | |
| type | Journal Paper | |
| journal volume | 46 | |
| journal issue | 1 | |
| journal title | Journal of Applied Mechanics | |
| identifier doi | 10.1115/1.3424479 | |
| journal fristpage | 101 | |
| journal lastpage | 106 | |
| identifier eissn | 1528-9036 | |
| keywords | Diffraction | |
| keywords | Waves | |
| keywords | Fracture (Materials) | |
| keywords | Displacement | |
| keywords | Shear (Mechanics) | |
| keywords | Wavelength | |
| keywords | Nondestructive evaluation AND Stress | |
| tree | Journal of Applied Mechanics:;1979:;volume( 046 ):;issue: 001 | |
| contenttype | Fulltext |