TY - GEN
T1 - Detecting Crack on a Beam Subjected to Impact Load
AU - Gunawan, Fergyanto E.
AU - Huu Nhan, Tran
AU - Sutikno,
AU - Kamil, Insannul
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2022
Y1 - 2022
N2 - Crack often affects structural deformation nonlinearly, leading to difficulty detecting their existence using some Structural Health Monitoring methods. In this paper, we propose a damage index derived from the Euler-Bernoulli beam theory. Furthermore, we evaluate the method's ability to detect the crack when the specimen is subjected to an impact load. To assess the proposed damage index, we consider a beam specimen containing a lateral crack. The beam has a length of 300 mm and a square-shaped cross-sectional area of 20 mm × 20 mm. The beam is made of steel, is constrained at one end, and is subjected to an impact load at the other end. The beam lateral displacement at many observation points across the beam-free surface is recorded during the beam dynamics. The records are used to compute the proposed damage index. The results suggest that the index only detects the crack when the beam deformation is affected by the crack. When the crack face is suppressed to bear the compressive stress, the resulting deformation is not much different from that of the uncracked beam. In that condition, the proposed index is not able to indicate the existing crack.
AB - Crack often affects structural deformation nonlinearly, leading to difficulty detecting their existence using some Structural Health Monitoring methods. In this paper, we propose a damage index derived from the Euler-Bernoulli beam theory. Furthermore, we evaluate the method's ability to detect the crack when the specimen is subjected to an impact load. To assess the proposed damage index, we consider a beam specimen containing a lateral crack. The beam has a length of 300 mm and a square-shaped cross-sectional area of 20 mm × 20 mm. The beam is made of steel, is constrained at one end, and is subjected to an impact load at the other end. The beam lateral displacement at many observation points across the beam-free surface is recorded during the beam dynamics. The records are used to compute the proposed damage index. The results suggest that the index only detects the crack when the beam deformation is affected by the crack. When the crack face is suppressed to bear the compressive stress, the resulting deformation is not much different from that of the uncracked beam. In that condition, the proposed index is not able to indicate the existing crack.
KW - Cracked beam
KW - Damage index
KW - Euler-Bernoulli beam
KW - Lateral deformation
KW - Structural health monitoring
UR - http://www.scopus.com/inward/record.url?scp=85131877767&partnerID=8YFLogxK
U2 - 10.1007/978-981-19-1968-8_65
DO - 10.1007/978-981-19-1968-8_65
M3 - Conference contribution
AN - SCOPUS:85131877767
SN - 9789811919671
T3 - Lecture Notes in Mechanical Engineering
SP - 781
EP - 789
BT - The AUN/SEED-Net Joint Regional Conference in Transportation, Energy, and Mechanical Manufacturing Engineering - Proceeding of RCTEMME 2021
A2 - Le, Anh-Tuan
A2 - Pham, Van-Sang
A2 - Le, Minh-Quy
A2 - Pham, Hoang-Luong
PB - Springer Science and Business Media Deutschland GmbH
T2 - AUN/SEED-Net Joint Regional Conference in Transportation, Energy, and Mechanical Manufacturing Engineering, RCTEMME 2021
Y2 - 10 December 2021 through 12 December 2021
ER -