Total views : 143

An Approach for Measurement of Young’s Modulus of Glass in the Form of a Slab


  • Department of Physics, Siliguri College, Siliguri, Darjeeling - 734001, West Bengal, India


Objectives: The study of elastic properties of material is very important for commercial use as well as for research work. But especially for this purpose we are not always very much interested in study with materials other than metals. Now, there will be a study of elastic property of glass, mainly to determine the value of Young’s Modulus experimentally. Methods/Statistical Analysis: In the present study the process of flexure of a thin beam of glass is used. When external force in the form of weight is applied on the middle point of glass slab, the change in length of different layers of the slab occurs. As a result finally total Internal Bending Moment (IBM) comes to play. Findings: Directly, IBM cannot be measured but at equilibrium it can be treated equal in magnitude to Applied (external) Bending Moment (ABM). Theoretically a relation between ABM and Young’s modulus can be generated, from this study; Young’s modulus can be estimated. The result got from this study is very close to the well-established value of Young’s modulus of glass. Though in the process, the changes in length for glass is very small, breaking load is also very low and regular, symmetric shape of glass is essential, still it is very easy and interesting to determine the value of Young’s modulus of glass. This process not only useful for glass or metals, but can be used for other non-metals. Application/ Improvements: The flexure process may be the quickest and the result very close to the actual result for glass.


Applied Bending Moment, Breaking Load, Elastic, Internal Bending Moment, Modulus

Full Text:

 |  (PDF views: 159)


  • Chatterjee H, Sengupta RA. Treatise on G.P.M, New Central Book Agency (P) Ltd. 6th Edition. 2004; p. 475-554.
  • Maiti SN, Chaudhuri DP. Classical Mechanics and G.P.M.New Age (p) Ltd. Revised 2nd Edition. 2006; p. 461521.
  • Mathur DS. Elements of Properties of Matter (11e), Shayam Lal Charitable Trust, 11th Edition, New Delhi -110055.1992.
  • He H. Thope MF. Elastic properties of Glass. Physical Review Letters 54. May 1985; 54(19):1-4.
  • Yavorsky BM, PinskyAA. Mir Publishers: Moscow: Fundamentals of Physics. 1975; 1.
  • Phillips CJ. Glass the Miracle Maker (pitman) Publishing Corporation. New York. 1948; p. 152-53. PMid:18871486
  • Baker TC, Preston FW. Journal of Applied Physics. 1946; 17:170. CrossRef.
  • Timoshenko S. Theory of Elasticity (McGraw-Hill book Company), Inc, New York. 1934; p. 290.
  • Murgatroyed JB. Journal of Society Glass Technoly, XXVIII.1944; 21(5):1-2.
  • Sinclair D. A Bending Method for Measurement of the Tensile strength and Young's Modulus of Glass Fibers, Journal of Applied Physics. Published online. 2004 April; 21(5):1-6.
  • McGraw DA. A method for determining Young's modulus of Glass at Elevated temperatures. Journal of the American Ceramic Society, version of Record online. 2006; 35(1):2227.


  • There are currently no refbacks.

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.