A new energy indicator in damage locating vector method (DLV) for detecting multiple damaged positions in beam and truss structures

Authors

  • Nguyen Minh Nhan Institute for Computational Science (INCOS), Ton Duc Thang University, Hochiminh City
  • Dinh Cong Du Institute for Computational Science (INCOS), Ton Duc Thang University, Hochiminh City
  • Vo Duy Trung Institute for Computational Science (INCOS), Ton Duc Thang University, Hochiminh City
  • Tran Viet Anh Institute for Computational Science (INCOS), Ton Duc Thang University, Hochiminh City
  • Nguyen Thoi Trung Institute for Computational Science (INCOS), Ton Duc Thang University, Hochiminh City

DOI:

https://doi.org/10.15625/0866-7136/38/3/5807

Keywords:

Damage locating vector method (DLV), strain energy, load vector, damage detection, vibration

Abstract

The paper presents a new indicator called normalized energy index (nei) in damage locating vector method (DLV) for detecting multiple damaged positions in beam and truss structures. In the DLV method, a set of load vectors, which is extracted from the change in flexibility matrix between an undamaged structure and a damaged one, is applied as static loads to the undamaged structure which are evaluated via the finite element modeling.  Then, the nei values are computed for each element by using the displacements. In order to verify the accuracy and efficiency of a proposed  indicator, a cantilevered beam and a 14-bay planar truss are considered

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Published

25-09-2016

How to Cite

Nhan, N. M., Du, D. C., Trung, V. D., Anh, T. V., & Trung, N. T. (2016). A new energy indicator in damage locating vector method (DLV) for detecting multiple damaged positions in beam and truss structures. Vietnam Journal of Mechanics, 38(3), 153–166. https://doi.org/10.15625/0866-7136/38/3/5807

Issue

Section

Research Paper

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