Normal stress terms Links

Stiffness is defined in terms of modulus of elasticity or shear modulus. As defined in elasticity theory, the modulus of elasticity links normal stress to strain (t= ex E) and the shear modulus links shear stress to shear strain (t= /xG). 

Experimental data for two samples IR 1 and IR 2 of different cross-linking density are represented in terms of reduced stress [ t], reduced orientation function [ S 1, and normalized ratio in Figs 3, 4 and 5, respectively- Continuoul curves were calculated by making use of the equations derived in the preceding theoretical part with the parameters listed in Table I-... 

A thermoplastic adhesive should normally have a glass transition temperature above 40 °C if it is to resist creep. Flexible thermoplastic adhesives (Tg below 15 °C) should be used only where there is no long-term stress or risk of diffusion into porous materials. Cross-linked materials might be used in... 

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