CONSULTANCY SERVICE FOR RYOWO (HOLDING) COMPANY, LIMITED
Uniaxial Tensile Test on SMC Panels
by Dr. P.C. Tse (Associate Professor, BSc, MSc, PhD, MHKIE, CEng) Department of Mechanical Engineering The Hong Kong Polytechnic University
Date: 19 April 2006
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The Hong Kong Polytechnic University Department of Mechanical Engineering
Contents
(A) Summary (B) Uniaxial Tensile Test and Fibre Mass Fraction Measurement (C) Conclusions
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The Hong Kong Polytechnic University Department of Mechanical Engineering
(A) Summary Uniaxial tensile test of SMC Panels were carried out in accordance to BS 2782-3: Methods 320A to 320F:1976 "Methods of Testing Plastics – Part 3: Mechanical properties – Methods 320A to 320F: Tensile strength, elongation and elastic modulus" and Singapore Standard 245:1995 (ICS 23.020.10) "Specification for Glass Reinforced Polyester Sectional Water Tanks″. A typical specimen prepared for uniaxial tensile test is shown on the figure in Appendix 1 and a specimen under test is shown on the figure in Appendix 2. Five specimens from each SMC panel were tested to obtain the Young’s modulus, Poisson’s ratio, elongation and failure stress. The fibre mass fraction of the panels was obtained in accordance to BS2782 : Part 10 : Method 1002 : 1977 EN60 "Determination of Loss on Ignition" and BS 5734-1:1990 "Polyester Moulding Compounds for Electrical and Other Purposes" at some selected locations. A typical specimen for fibre fraction measurements and the fibre obtained after burn-off process are shown on the figures in Appendix 4.
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The Hong Kong Polytechnic University Department of Mechanical Engineering
(B) Unixial Tensile Test and Fibre Mass Fraction Measurement • All the specimens for uniaxial tensile test were supplied by the client. • Specimens were prepared and tested in accordance to BS 2782-3: Methods 320A to 320F:1976 "Methods of Testing