Ceramic fiber composites: Experimental analysis and modeling of mechanical properties

Ceramic fiber composites: Experimental analysis and modeling of mechanical properties
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陶瓷纤维复合材料:机械性能的实验分析和建模

DOI:
10.1016/j.compscitech.2007.06.029
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发表时间:
2008
影响因子:
9.1
通讯作者:
G. Grathwohl.
G. Grathwohl.
中科院分区:
材料科学1区
文献类型:
--
作者:
D. Koch;K. Tushtev;G. Grathwohl.

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陶瓷纤维增强陶瓷基复合材料(CMC)是具有高断裂韧性的优秀陶瓷。如果复合材料的两种脆性成分(即纤维和基体)以有效的方式相互作用,则可以实现这一点。允许纤维和基体之间脱粘的弱界面控制断裂过程(WIC-CMC),或者基体充当弱且更柔顺的组件(WMC-CMC)。提出了 WMC 型复合材料的实验测试数据库,其中材料数据用于建立以宏观方式描述材料行为的模型。非弹性变形和材料损伤过程是在连续损伤力学概念的基础上定义、测量和解释的。然后,弹性和非弹性响应可预测直至失效,因为这取决于纤维和样本加载方向之间的角度。
Ceramic fiber reinforced ceramic matrix composites (CMC) are outstanding ceramics with high fracture toughness. This can be realized if both brittle components of the composite, i.e., fibers and matrix are interacting with each other in an efficient way. Either a weak interface allowing debonding between fiber and matrix controls the fracture processes (WIC–CMC) or the matrix takes this role of a weak and more compliant component (WMC–CMC). An experimental test data base is presented for a WMC-type composite where the materials data are used to establish a model which describes the materials behavior in a macroscopic way. Inelastic deformation and materials damage processes are defined, measured and interpreted on the base of a continuum damage mechanics concept. The elastic and inelastic response is then predictable up to failure as being dependent on the angle between fiber and loading directions of the specimens.
DOI: 10.4028/www.scientific.net/ast.45.1435
发表时间: 2006
期刊: Advances in Science and Technology
影响因子: --
作者:
D. Koch;K. Tushtev;J. Horvath;R. Knoche;G. Grathwohl
通讯作者: G. Grathwohl
DOI: --
发表时间: 2006
期刊:
影响因子: --
作者:
K. Tushtev;D. Koch;J. Horvath;G. Grathwohl
通讯作者: G. Grathwohl