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Description:
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The strength of LG varies with temperature , nominal thickness , load duration , and the shear transfer capability of the interlayer . Most of the published research regarding LG gives insight about the behavior of LG specimens bonded together with PVB interlayer . The objective of the research presented herein is to gain insight into the behavior of LG bonded together with the new HG /MD interlayer . The research consisted of measuring the mean failure pressure and deflection at failure of 19 specimens and of obtaining the shear modulus of a specimen with the use of a finite element model . The use of HG /MD interlayer resulted in increased LG strength compared to LG bonded together with PVB interlayers . The HG /MD sample had a mean failure pressure of 12 .6 KPa (1 .76 psi ) . The HG /MD sample had a higher bending stiffness compared to the PVB sample that King and Norville (1997 ) tested . Finally , non -destructive tests demonstrated that the HG /MD interlayer has a modulus of rigidity 2 .5 times that of PVB at about 34°C (93°F ) . The higher shear transfer capability of HG /MD resulted in the high mean failure pressure obtained in the research reported herein . |