Team Description
At Chalmers University of Technology in Goteborg, Sweden, the research group for dynamics at the Department of Applied Mechanics has a long tradition at working with wave propagation and scattering in elastic media. The main application has been to ultrasonic nondestructive testing and in particular a lot of modelling and development of computer software have been done for typical situations in the nuclear power industry during the last 15 years. This has concerned the scattering by defects, modelling of ultrasonic probes in transmission and reception, and calibration. Much work has been devoted to treat the scattering by simply shaped cracks in various situations by in 3D, both for isotropic and anisotropic media. Boundary integral equation (BIE) techniques have been applied for this purpose, but in contrast to a general boundary element approach (BEM), the unknown surface fields (crack-opening-displacements in this case) is expanded in orthogonal complete sets on the surface, which also include the correct edge conditions. It is noted that this approach is only valid for simply shaped cracks, but then yields very accurate and efficient numerical schemes.
List of publications
1. T. Krasnova, P.-A. Jansson, and A. Bostrom: Ultrasonic wave propagation in an anisotropic cladding with a wavy interface. Wave Motion 41 (2005) 163-177
2. A. Bostrom: Review of hypersingular integral equation method for crack scattering and application to modeling of ultrasonic nondestructive evaluation. Appl. Mech. Review 56 (2003) 383-405
3. A. Bostrom and P. Bovik: Ultrasonic scattering by a side-drilled hole. Int. J. Solids Struct. 40 (2003) 3493-3505
4. A. Bostrom, T. Grahn, and A.J. Niklasson: Scattering of elastic waves by a rectangular crack in an anisotropic half-space. Wave Motion 38 (2003) 91-107
5. P. Bovik and A. Bostrom: A model of ultrasonic nondestructive testing for internal and subsurface cracks. J. Acoust. Soc. Am. 102 (1997) 2723-2733
Team Leader and address
| Title | Prof. |
| Position | Group Leader |
| Sex | Male |
| Date Of Birth | 02/11/1951 |
| First Name | Anders |
| Patronymic Name | |
| Family Name | Bostrom |
| Organisation Type | Public |
| Organisation Registration Nr | |
| Academy / Branch | |
| Organisation / University / Institute | Chalmers University of Technology |
| Department | Department of Applied Mechanics |
| Laboratory | Division of Dynamics |
| Street Name | Horsalsvagen |
| Nr | 7 |
| Post Box | |
| Zip code | SE- 412 96 |
| City | Goteborg |
| Country | Sweden |
| Phone 1 | 46/31/7721526 |
| Fax 1 | 46/31/7723827 |
| Email 1 | anders.bostrom@chalmers.se |
| Email 2 | |
| Website | www.am.chalmers.se |
List of Senior Scientists in the team
| 1) | First Name | Per-Ake |
| Patronymic Name | ||
| Family Name | Jansson | |
| Year Of Birth | 1949 | |
| Institute | Chalmers University of Technology | |
| 2) | First Name | Jonathan |
| Patronymic Name | ||
| Family Name | Westlund | |
| Year Of Birth | 1981 | |
| Institute | Chalmers University of Technology |
Statistics
Number of Team Members involved in this project: 3
Number of Team Members under 35: 1
Number of Team Members who have individually received grants in INTAS projects: 0