TY - GEN
T1 - Multi-spot ultrasonic welding of thermoplastic composite single-lap joints
T2 - 18th European Conference on Composite Materials, ECCM 2018
AU - Zhao, T.
AU - Tsakoniatis, I.
AU - Rans, C.
AU - Villegas, I. F.
AU - Benedictus, R.
N1 - Publisher Copyright:
© CCM 2020 - 18th European Conference on Composite Materials. All rights reserved.
PY - 2020
Y1 - 2020
N2 - Thermoplastic composite spot welded joints are more well-suited for carrying shear load rather than peel load. However, peel load is difficult to be eliminated in single-lap joint configuration. In this paper, a series of mechanical tests were carried out to study the effects of the spot spacing and the number of welded spots on the secondary bending and subsequently on the strength of the multi-spot welded joints. Based on that, a comparative study was performed on the load-carrying capability of multi-spot welded and mechanically fastened joints assembled with multi-row fasteners. It was found that, by increasing the spot spacing and the number of welded spots, the secondary bending of the multi-spot welded joints can be effectively decreased, which eventually results in a comparable load-carrying capability with respect to the mechanically fastened joints.
AB - Thermoplastic composite spot welded joints are more well-suited for carrying shear load rather than peel load. However, peel load is difficult to be eliminated in single-lap joint configuration. In this paper, a series of mechanical tests were carried out to study the effects of the spot spacing and the number of welded spots on the secondary bending and subsequently on the strength of the multi-spot welded joints. Based on that, a comparative study was performed on the load-carrying capability of multi-spot welded and mechanically fastened joints assembled with multi-row fasteners. It was found that, by increasing the spot spacing and the number of welded spots, the secondary bending of the multi-spot welded joints can be effectively decreased, which eventually results in a comparable load-carrying capability with respect to the mechanically fastened joints.
KW - Mechanical behaviour
KW - Secondary bending
KW - Spot welded joint
KW - Thermoplastic composites
UR - http://www.scopus.com/inward/record.url?scp=85084163841&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85084163841
T3 - ECCM 2018 - 18th European Conference on Composite Materials
BT - ECCM 2018 - 18th European Conference on Composite Materials
PB - Applied Mechanics Laboratory
Y2 - 24 June 2018 through 28 June 2018
ER -