A comparative investigation of the use of laminate-level meso-scale and fracture-mechanics-enriched meso-scale composite-material models in ballistic-resistance analyses

作者：Grujicic M^*; He T; Marvi H; Cheeseman B A; Yen C F

来源：Journal of Materials Science, 2010, 45(12): 3136-3150.

DOI：10.1007/s10853-010-4290-1

A critical assessment is provided of the typical laminate-level, classical meso-scale, and fracture-mechanics-enriched meso-scale material models for continuous-fiber reinforced polymer-matrix composites. Suitability of these material models for the use in structural-mechanics and ballistic-resistance computational analyses of the composite laminates is investigated by carrying out a series of computational studies in which a composite laminate is either subjected to in-plane tension/compression or bending or used as a target plate and impacted by a solid right circular cylindrical projectile. The results obtained suggest that the fracture-mechanics enriched meso-scale composite-laminate material model, in which the fracture-mechanics character of micro-cracking is included within a damage-mechanics formulation, is currently the best compromise between computational efficiency and physical-reality/fidelity.

• 出版日期2010-6