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首页> 外文期刊>Journal of Materials Science >Numerical modeling of development of fracture in anisotropic composite materials at low-velocity loading
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Numerical modeling of development of fracture in anisotropic composite materials at low-velocity loading

机译：低速载荷下各向异性复合材料断裂发展的数值模拟

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摘要

The problem of normal interaction of the steel isotropic compact cylindrical projectile with the orthotropic plate on ballistic limit in range of velocities of impact from 50 to 400 m/s is considered. Target material is as organoplastic with initial orientation of mechanical properties, and the material, which properties received by turn on 90° relative to the axis OY of an initial material. Fracture of targets is investigated; the comparative analysis of efficiency of their protective properties depending on orientation of elastic and strength properties of an anisotropic material is carried out. The task is solved numerically, using the method of finite elements in three-dimensional statement. The behavior of a material of the projectile is described by elastic-plastic model; the behavior of anisotropic material of the target is described by elastic-brittle model with various ultimate strength limits on pressure and tension.
机译：考虑了各向同性的紧凑型圆柱状弹丸与正交异性板的法向相互作用在弹道极限上的撞击速度范围为50至400 m / s的问题。目标材料是具有有机力学初始取向的有机塑料，而该材料通过相对于初始材料的轴OY旋转90°来接收。研究目标的断裂;根据各向异性材料的弹性取向和强度特性对它们的保护性能的效率进行了比较分析。使用三维陈述中的有限元方法以数字方式解决了该任务。弹丸材料的行为用弹塑性模型描述。目标的各向异性材料的行为通过弹性脆性模型来描述，该模型在压力和张力上具有各种极限强度极限。

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