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Size Scaling of Tensile Failure Stress in a Float Soda–Lime–Silicate Glass
Author(s) -
Wereszczak Andrew A.,
Kirkland Timothy P.,
Ragan Meredith E.,
Strong Kevin T.,
Lin HuaTay,
Patel Parimal
Publication year - 2010
Publication title -
international journal of applied glass science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 34
eISSN - 2041-1294
pISSN - 2041-1286
DOI - 10.1111/j.2041-1294.2010.00014.x
Subject(s) - materials science , ultimate tensile strength , composite material , context (archaeology) , weibull modulus , weibull distribution , soda lime , float glass , stress (linguistics) , limiting , scaling , soda lime glass , tin , flexural strength , forensic engineering , metallurgy , mechanical engineering , paleontology , linguistics , statistics , philosophy , mathematics , geometry , engineering , biology
The (tensile) strength–size scaling of a float soda–lime–silicate glass was studied using biaxial flexure and Hertzian ring crack initiation testing. The examined Weibull effective areas spanned ∼0.4–48,000 mm 2 . Both the air and tin sides were tested. The air side was stronger than the tin side as others have observed; however, the differences in their characteristic strengths decreased with a decreasing effective area, and their strengths converged for effective areas smaller than ∼100 mm 2 . The failure stress at the smallest effective area examined for the tin side was ∼500% greater than that at the largest effective area, while that difference was ∼250% for the air side. A Weibull modulus change at ∼100 mm 2 suggests different strength‐limiting flaw types were dominant below and above this effective area. These results reinforce the importance of the interpretation and use of the tensile strength of glass in context to how much of its area is being subjected to tensile stress.