Date of download: 3/8/2018 Copyright © ASME. All rights reserved. From: Prediction of Asymmetric Yield Strengths of Polymeric Materials at Tension and Compression Using Spherical Indentation J. Eng. Mater. Technol. 2017;139(2):021002-021002-11. doi:10.1115/1.4035268 Figure Legend: True stress-true strain curves in uniaxial tension and compression test for polycarbonate (PC) at strain rate of 10−3 s−1

Date of download: 3/8/2018 Copyright © ASME. All rights reserved. From: Prediction of Asymmetric Yield Strengths of Polymeric Materials at Tension and Compression Using Spherical Indentation J. Eng. Mater. Technol. 2017;139(2):021002-021002-11. doi:10.1115/1.4035268 Figure Legend: Relationship between yield strength and strain rate obtained from tension and compression tests

Date of download: 3/8/2018 Copyright © ASME. All rights reserved. From: Prediction of Asymmetric Yield Strengths of Polymeric Materials at Tension and Compression Using Spherical Indentation J. Eng. Mater. Technol. 2017;139(2):021002-021002-11. doi:10.1115/1.4035268 Figure Legend: Indentation curves of shallow indentation using spherical indenter R = 500 μm for PC (a) and PMMA (b)

Date of download: 3/8/2018 Copyright © ASME. All rights reserved. From: Prediction of Asymmetric Yield Strengths of Polymeric Materials at Tension and Compression Using Spherical Indentation J. Eng. Mater. Technol. 2017;139(2):021002-021002-11. doi:10.1115/1.4035268 Figure Legend: Calculated Young's modulus with respected to indentation depth during loading process for PC (a) and PMMA (b)

Date of download: 3/8/2018 Copyright © ASME. All rights reserved. From: Prediction of Asymmetric Yield Strengths of Polymeric Materials at Tension and Compression Using Spherical Indentation J. Eng. Mater. Technol. 2017;139(2):021002-021002-11. doi:10.1115/1.4035268 Figure Legend: Relationships between indentation force and depth h3/2 for PC (a) and PMMA (b)

Date of download: 3/8/2018 Copyright © ASME. All rights reserved. From: Prediction of Asymmetric Yield Strengths of Polymeric Materials at Tension and Compression Using Spherical Indentation J. Eng. Mater. Technol. 2017;139(2):021002-021002-11. doi:10.1115/1.4035268 Figure Legend: Two-dimensional model of FEM computation for spherical indentation

Date of download: 3/8/2018 Copyright © ASME. All rights reserved. From: Prediction of Asymmetric Yield Strengths of Polymeric Materials at Tension and Compression Using Spherical Indentation J. Eng. Mater. Technol. 2017;139(2):021002-021002-11. doi:10.1115/1.4035268 Figure Legend: Examples of indentation curve, in which it investigates the effect of the yield strength σY (a) and the parameter α (b)

Date of download: 3/8/2018 Copyright © ASME. All rights reserved. From: Prediction of Asymmetric Yield Strengths of Polymeric Materials at Tension and Compression Using Spherical Indentation J. Eng. Mater. Technol. 2017;139(2):021002-021002-11. doi:10.1115/1.4035268 Figure Legend: Relationship between (F(h/R=0.5)/σY⋅h2) and (E∗/σr) at each parameter α

Date of download: 3/8/2018 Copyright © ASME. All rights reserved. From: Prediction of Asymmetric Yield Strengths of Polymeric Materials at Tension and Compression Using Spherical Indentation J. Eng. Mater. Technol. 2017;139(2):021002-021002-11. doi:10.1115/1.4035268 Figure Legend: Contour map of error distribution for σY (a) and differences (input value—estimation value) of parameter α (b)

Date of download: 3/8/2018 Copyright © ASME. All rights reserved. From: Prediction of Asymmetric Yield Strengths of Polymeric Materials at Tension and Compression Using Spherical Indentation J. Eng. Mater. Technol. 2017;139(2):021002-021002-11. doi:10.1115/1.4035268 Figure Legend: Comparison between the input value and the estimation from reverse analysis for representative materials for sensitivity analysis

Date of download: 3/8/2018 Copyright © ASME. All rights reserved. From: Prediction of Asymmetric Yield Strengths of Polymeric Materials at Tension and Compression Using Spherical Indentation J. Eng. Mater. Technol. 2017;139(2):021002-021002-11. doi:10.1115/1.4035268 Figure Legend: Indentation curves of deep indentation test using spherical indenter R = 20 μm for PC (a) and PMMA (b)

Date of download: 3/8/2018 Copyright © ASME. All rights reserved. From: Prediction of Asymmetric Yield Strengths of Polymeric Materials at Tension and Compression Using Spherical Indentation J. Eng. Mater. Technol. 2017;139(2):021002-021002-11. doi:10.1115/1.4035268 Figure Legend: Relationships between the yield strength σY and parameter α, which are from theory (Eq. (6)) and experimental estimation from Eq. (12) for PC (a) and PMMA (b).

Date of download: 3/8/2018 Copyright © ASME. All rights reserved. From: Prediction of Asymmetric Yield Strengths of Polymeric Materials at Tension and Compression Using Spherical Indentation J. Eng. Mater. Technol. 2017;139(2):021002-021002-11. doi:10.1115/1.4035268 Figure Legend: Changes in coefficients (A1, A2, and A3) in Table 2 with respect to parameter α