Some aspects of inverse problem analysis for a layered halfspace

✍ Scribed by B. Novotny

• Publisher: Springer
• Year: 1994
• Tongue: English
• Weight: 584 KB
• Volume: 14
• Category: Article
• ISSN: 0178-7675
• DOI: 10.1007/bf00370077

✦ Synopsis

The present paper discusses the questions associated with the nondestructive testing of flexible pavements. The problem of how to determine layer moduli from the measured surface deformation is solved using technique based on the theory of ill-posed problems. The proposed iterative solution process exploits the capacity to compute effectively the derivatives of the error functional with respect to elastic moduli. The properties of the procedure are analysed and tested by numerically solved example problems. It is shown that by simulated computer experiments based on the solution procedure properties, valuable information on the measuring instrumentation setup may be obtained.

Formulation of inverse problem

In the current pavement management systems it is believed that valuable information on the mechanistic properties of flexible pavement can be deduced by applying the proper specific load to the pavement surface and by measuring induced deformations of the surface in preselected points. The response