TY - JOUR

T1 - In-line residual strain monitoring for thermoplastic automated tape layup using fiber Bragg grating sensors

AU - Yadav, Neha

AU - Wachtarczyk, Karol

AU - Gąsior, Paweł

AU - Schledjewski, Ralf

AU - Kaleta, Jerzy

N1 - Publisher Copyright: © 2022 The Authors. Polymer Composites published by Wiley Periodicals LLC on behalf of Society of Plastics Engineers.

PY - 2022/1/5

Y1 - 2022/1/5

N2 - Automated tape layup (ATL) has been used extensively for manufacturing composites laminates using unidirectional prepregs for high-performance industries like aerospace. Residual stress is one of the defects that adversely affect the layup quality. These stresses affect geometrical tolerances in the form of distortion of the final product and are found to have a detrimental impact on the mechanical properties. In-line monitoring of such defects will help in productivity increase and achieving a reliable process control. The aim of the present work is to demonstrate the feasibility of fiber Bragg grating sensors for monitoring residual strains. FBGs are embedded inside a thermoplastic UD laminate. Temperature and strain discrimination is performed to recognize intermittent residual strains during the layup. Finally, intermittent residual strain is used to develop an understanding of the global residual strain. Effect of selective process parameter on residual stress formation and the evolution of the same is also analyzed.

AB - Automated tape layup (ATL) has been used extensively for manufacturing composites laminates using unidirectional prepregs for high-performance industries like aerospace. Residual stress is one of the defects that adversely affect the layup quality. These stresses affect geometrical tolerances in the form of distortion of the final product and are found to have a detrimental impact on the mechanical properties. In-line monitoring of such defects will help in productivity increase and achieving a reliable process control. The aim of the present work is to demonstrate the feasibility of fiber Bragg grating sensors for monitoring residual strains. FBGs are embedded inside a thermoplastic UD laminate. Temperature and strain discrimination is performed to recognize intermittent residual strains during the layup. Finally, intermittent residual strain is used to develop an understanding of the global residual strain. Effect of selective process parameter on residual stress formation and the evolution of the same is also analyzed.

UR - http://www.scopus.com/inward/record.url?scp=85122308552&partnerID=8YFLogxK

U2 - 10.1002/pc.26480

DO - 10.1002/pc.26480

M3 - Article

VL - 43.2022

SP - 1590

EP - 1602

JO - Polymer Composites

JF - Polymer Composites

SN - 1548-0569

IS - 3

ER -