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Author:

He, C (He, C.) | Van Velsor, JK (Van Velsor, JK.) | Lee, CM (Lee, CM.) | Rose, JL (Rose, JL.)

Indexed by:

CPCI-S

Abstract:

It is necessary to quantify the amount of delamination present in load hearing rock bolts, as small amounts may be deemed acceptable and large amounts may lead to catastrophic failure. In this work, a semi-analytical FEM model is used to calculate the theoretical wave structures for a rod embedded in concrete. A qualitative relationship between percent delamination and wave reflection energy is demonstrated. It is shown that with the proper selection of inspection parameters, it is possible to inspect large lengths (10+ ft.) of embedded rod using an ultrasonic guided wave pulse-echo technique.

Keyword:

length inspection delamination detection ultrasonic guided waves rock bolt

Author Community:

  • [ 1 ] Beijing Univ Technol, Beijing 100022, Peoples R China
  • [ 2 ] Penn State Univ, University Pk, PA 16802 USA

Reprint Author's Address:

  • [He, C]Beijing Univ Technol, Beijing 100022, Peoples R China

Email:

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Source :

REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 25A AND 25B

ISSN: 0094-243X

Year: 2006

Volume: 820

Page: 195-201

Language: English

Cited Count:

WoS CC Cited Count: 16

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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