Two-Point Bending Stress Determination of Ultra-Thin Glass Plates

  • Po-Chi Sung
  • Wei-Chung WangEmail author
  • Yu-Wei Kuo
Conference paper
Part of the Structural Integrity book series (STIN, volume 8)


Based on the large deflection beam theory and the deflection beam profile equation, a two-point bending stress determination method for ultra-thin glass plates was proposed in this paper. The full-profile bending stress distribution as the ultra-thin glass plate is bent with any contact angle and any compression displacement in the two-point bending test can be determined by the proposed method. In experiment, the widths and heights of the profile as well as the compression forces of a 100 μm thickness ultra-thin glass plate bent with different contact angles and compression displacements were measured. Measurement results of the widths and heights of the profiles as well as the compression forces are in good agreement with the theoretical values.


Ultra-thin glass plate Bending stress Large deflection beam theory Two-point bending test Enhanced exposure theory of photoelasticity 



This paper was supported in part by the Ministry of Science and Technology (Grant no. MOST 106-2221-E-007-048 and 105-2221-E-007-047-MY3), Taiwan, Republic of China.


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Power Mechanical EngineeringNational Tsing Hua UniversityHsinchuTaiwan, Republic of China

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