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A damage model applicable to ceramics subjected to dynamic compressive loadinghas been developed. The model was based on damage micromechanics and wing crack nucleationand growth. Tension wing cracks nucleated and propagated from the tip of the sliding cracks in thedirection of maximum applied compression when the stress-intensity factor reached its critical value.The rate of crack growth was governed by a universal relation in dynamic fracture for high strainrate. The failure of the material was linked to a critical density of damage. The model predicted thefailure or peak strength to increase with increasing shock loading. The results of the dynamicdamage evolution model were compared with the experimental results and a good agreement wasfound.