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. 2020 Nov 27;7:575445. doi: 10.3389/frobt.2020.575445

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Copyright © 2020 Xiao, Poon, Lim, Meng and Ren.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Bending tests. (A) Bending angle measurement without loading, (B) Bending angle graph without loading, (C) Bending angle measurement under loading, (D) Bending angle graph under loading.