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Composite interlaminar fracture toughness: Three-dimensional finite element modeling for mixed mode 1, 2 and 3 fracture

机译：复合层间断裂韧性：混合模式1,2和3断裂的三维有限元模拟

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A computational method/procedure is described which can be used to simulate individual and mixed mode interlaminar fracture progression in fiber composite laminates. Different combinations of Modes 1, 2, and 3 fracture are simulated by varying the crack location through the specimen thickness and by selecting appropriate unsymmetric laminate configurations. The contribution of each fracture mode to strain energy release rate is determined by the local crack closure methods while the mixed mode is determined by global variables. The strain energy release rates are plotted versus extending crack length, where slow crack growth, stable crack growth, and rapid crack growth regions are easily identified. Graphical results are presented to illustrate the effectiveness and versatility of the computational simulation for: (1) evaluating mixed-mode interlaminar fracture, (2) for identifying respective dominant parameters, and (3) for selecting possible simple test methods.

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Murthy, P. L. N.; Chamis, C. C.;
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年度 1986
页码 1-27
总页数 27
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
COMPOSITE MATERIALS; FINITE ELEMENT METHOD; FRACTURE STRENGTH; LAMINATES; THREE DIMENSIONAL BODIES; THREE DIMENSIONAL MODELS; COMPUTATION; CRACK CLOSURE; CRACK PROPAGATION; FIBER COMPOSITES; GRAPHS (CHARTS); INTERLAYERS; SIMULATION; STRAIN ENERGY METHODS; STRAIN ENERGY RELEASE RATE; STRAIN RATE; STRESS ANALYSIS;

机译：复合材料;有限元法;断裂强度; LamINaTEs;三维机构;三维模型;计算;裂缝封闭;裂纹扩展;纤维复合材料;图表（图表）;中间夹层;模拟;应变能方法;应变能量释放率;应变率;应力分析;

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8. Composite Interlaminar Fracture Toughness:Three-Dimensional Finite Element Modeling for Mixed Mode 1, 2and 3Fracture. [R] . murthy, p. l. n. chamis, c. c. 1986

机译：复合层间断裂韧性：混合模式1,2和3断裂的三维有限元模型。

Composite interlaminar fracture toughness: Three-dimensional finite element modeling for mixed mode 1, 2 and 3 fracture

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