An enriched continuum model for the design of a hierarchical composite

作者：Joshi Shailendra P^*; Ramesh K T

来源：Scripta Materialia, 2007, 57(9): 877-880.

DOI：10.1016/j.scriptamat.2007.06.661

• hierarchical microstructures
• particulate-reinforced composites (MMC)
• mechanical behavior
• micromechanical modeling
• secant Mori-Tanaka approach

Hierarchical composites comprise two or more constituent phases where at least one phase is itself a composite at a finer scale. We present a multiscale secant Mori-Tanaka method incorporating length scale effects to describe the composite response. The applicability of the model is illustrated for the Al-based composite developed by Ye et al. [Scripta Materialia 53 (2005) 481], which exhibits impressive strength and some ductility. This rapid analytical approach enables numerical experiments that yield optimal composite architecture to be performed.

• 出版日期2007-11