Multi-spot ultrasonic welding of thermoplastic composite single-lap joints: Effect of spot spacing and number of spots on weld strength

T. Zhao; I. Tsakoniatis; C. Rans; I. F. Villegas; R. Benedictus

Multi-spot ultrasonic welding of thermoplastic composite single-lap joints: Effect of spot spacing and number of spots on weld strength

T. Zhao
, I. Tsakoniatis
, C. Rans
, I. F. Villegas
, R. Benedictus

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

255 Downloads (Pure)

Abstract

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.

Original language	English
Title of host publication	ECCM 2018 - 18th European Conference on Composite Materials
Publisher	Applied Mechanics Laboratory
Number of pages	8
ISBN (Electronic)	9781510896932
Publication status	Published - 2020
Event	ECCM18: 18th European Conference on Composite Materials - Athens, Greece Duration: 24 Jun 2018 → 28 Jun 2018 Conference number: 18 http://www.eccm18.org/

Publication series

Name	ECCM 2018 - 18th European Conference on Composite Materials

Conference

Conference	ECCM18: 18th European Conference on Composite Materials
Abbreviated title	ECCM18
Country/Territory	Greece
City	Athens
Period	24/06/18 → 28/06/18
Internet address	http://www.eccm18.org/

Keywords

Mechanical behaviour
Secondary bending
Spot welded joint
Thermoplastic composites

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1e6515a667af47a0807e1ff780aeb091Final published version, 594 KB

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Zhao, T., Tsakoniatis, I., Rans, C., Villegas, I. F., & Benedictus, R. (2020). Multi-spot ultrasonic welding of thermoplastic composite single-lap joints: Effect of spot spacing and number of spots on weld strength. In ECCM 2018 - 18th European Conference on Composite Materials (ECCM 2018 - 18th European Conference on Composite Materials). Applied Mechanics Laboratory.

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title = "Multi-spot ultrasonic welding of thermoplastic composite single-lap joints: Effect of spot spacing and number of spots on weld strength",

abstract = "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.",

keywords = "Mechanical behaviour, Secondary bending, Spot welded joint, Thermoplastic composites",

author = "T. Zhao and I. Tsakoniatis and C. Rans and Villegas, \{I. F.\} and R. Benedictus",

year = "2020",

language = "English",

series = "ECCM 2018 - 18th European Conference on Composite Materials",

publisher = "Applied Mechanics Laboratory",

booktitle = "ECCM 2018 - 18th European Conference on Composite Materials",

note = "ECCM18: 18th European Conference on Composite Materials, ECCM18 ; Conference date: 24-06-2018 Through 28-06-2018",

url = "http://www.eccm18.org/",

}

Zhao, T, Tsakoniatis, I, Rans, C , Villegas, IF & Benedictus, R 2020, Multi-spot ultrasonic welding of thermoplastic composite single-lap joints: Effect of spot spacing and number of spots on weld strength. in ECCM 2018 - 18th European Conference on Composite Materials. ECCM 2018 - 18th European Conference on Composite Materials, Applied Mechanics Laboratory, ECCM18: 18th European Conference on Composite Materials, Athens, Greece, 24/06/18.

Multi-spot ultrasonic welding of thermoplastic composite single-lap joints: Effect of spot spacing and number of spots on weld strength. / Zhao, T.; Tsakoniatis, I.; Rans, C. et al.
ECCM 2018 - 18th European Conference on Composite Materials. Applied Mechanics Laboratory, 2020. (ECCM 2018 - 18th European Conference on Composite Materials).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Multi-spot ultrasonic welding of thermoplastic composite single-lap joints

T2 - ECCM18: 18th European Conference on Composite Materials

AU - Zhao, T.

AU - Tsakoniatis, I.

AU - Rans, C.

AU - Villegas, I. F.

AU - Benedictus, R.

N1 - Conference code: 18

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 - https://www.scopus.com/pages/publications/85084163841

M3 - Conference contribution

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 -

Multi-spot ultrasonic welding of thermoplastic composite single-lap joints: Effect of spot spacing and number of spots on weld strength

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Keywords

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