40859 2017 eng 361 371 135 article Elsevier Ltd. 1 -- -- -- A constitutive model for the nonlinear or “pseudoplastic” mechanical behavior in a linear-elastic solid with thermally induced microcracks is developed and applied to experimental results. The model is termed strain dependent microcrack density approximation (SDMDA) and is an extension of the modified differential scheme that describes the slope of the stress-strain curves of microcracked solids. SDMDA allows a continuous variation in the microcrack density with tensile loading. Experimental uniaxial tensile response of β-eucryptite glass and ceramics with controlled levels of microcracking is reported. It is demonstrated that SDMDA can well describe the extent of non-linearity in the experimental uniaxial tensile response of β-eucryptite with varying levels of microcracking. The advantages of the SDMDA are discussed in regard to tensile loading. Acta Materialia 10.1016/j.actamat.2017.06.033 1359-6454 1873-2453 14.09.2017 R. Cooper Giovanni Bruno A. Shyam T. Watkins A. Pandey M. Wheeler eng uncontrolled Microcracking eng uncontrolled β-eucryptite eng uncontrolled Young's modulus eng uncontrolled Modeling eng uncontrolled Tensile behavior Ingenieurwissenschaften und zugeordnete Tätigkeiten Verlagsliteratur Datei im Netzwerk der BAM verfügbar ("Closed Access")