Journal Pre-proof Experimental investigation of impact of environmental temperature and optimal baseline for thermal attenuation in structural health monitoring based on ultrasonic guided waves Saqlain Abbas, Fucai Li, Yanping Zhu, Xiaotong Tu PII: S0165-2125(19)30298-7 DOI: https://doi.org/10.1016/j.wavemoti.2019.102474 Reference: WAMOT 102474 To appear in: Wave Motion Received date : 15 August 2019 Revised date : 22 October 2019 Accepted date : 22 November 2019 Please cite this article as: S. Abbas, F. Li, Y. Zhu et al., Experimental investigation of impact of environmental temperature and optimal baseline for thermal attenuation in structural health monitoring based on ultrasonic guided waves, Wave Motion (2019), doi: https://doi.org/10.1016/j.wavemoti.2019.102474. This is a PDF ﬁle of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the deﬁnitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its ﬁnal form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2019 Published by Elsevier B.V.