"PFC3D5.0颗粒流环形剪切实验完整代码:含注释与Fish函数,土体材料建模全解析",PFC3D5.0颗粒流『颗粒材料 土体材料环形剪切实验』完整代码该代码包括:(1)完整代码及适量注释,可
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"PFC3D5.0颗粒流环形剪切实验完整代码:含注释与Fish函数,土体材料建模全解析",PFC3D5.0颗粒流『颗粒材料 土体材料环形剪切实验』完整代码该代码包括:(1)完整代码及适量注释,可以参考学习,也可直接使用,无需调试;(2)环形剪切实验的建模全过程,剪切应力,法向应力,样品体积变化,能量等完整fish函数。附图:模型侧视图,俯视图,加载过程中图像,表观摩擦系数曲线(剪切应力除以法向应力),法向应力曲线(恒压加载),样品体积变化曲线。,核心关键词:PFC3D5.0颗粒流; 颗粒材料; 土体材料; 环形剪切实验; 完整代码; 注释; 建模全过程; 剪切应力; 法向应力; 样品体积变化; energy; Fish函数; 模型侧视图; 俯视图; 加载过程图像; 表观摩擦系数曲线; 法向应力曲线; 样品体积变化曲线。,PFC3D5.0环形剪切实验完整代码:含建模与结果分析 <link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/base.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/css/fancy.min.css" rel="stylesheet"/><link href="/image.php?url=https://csdnimg.cn/release/download_crawler_static/90341207/2/raw.css" rel="stylesheet"/><div id="sidebar" style="display: none"><div id="outline"></div></div><div class="pf w0 h0" data-page-no="1" id="pf1"><div class="pc pc1 w0 h0"><img alt="" class="bi x0 y0 w1 h1" src="/image.php?url=https://csdnimg.cn/release/download_crawler_static/90341207/bg1.jpg"/><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">PFC3D5.0<span class="ff2 sc1">环形剪切实验<span class="_ _0"></span>颗粒流模拟完<span class="_ _0"></span>整代码</span></div><div class="t m0 x1 h2 y2 ff2 fs0 fc0 sc1 ls0 ws0">一、引言</div><div class="t m0 x1 h2 y3 ff3 fs0 fc0 sc0 ls0 ws0">PFC<span class="ff4">(</span>Particle Flow </div><div class="t m0 x1 h2 y4 ff3 fs0 fc0 sc0 ls0 ws0">Code<span class="ff4">)是一款用于模拟颗粒材料行为的离散元方法软件。本案例将展示如何使用</span>PFC3D5.0<span class="ff4">进行环</span></div><div class="t m0 x1 h2 y5 ff4 fs0 fc0 sc0 ls0 ws0">形剪切实验的建模与模拟,包括完整的代码及注释,以及实验过程中的关键数据输出。</div><div class="t m0 x1 h2 y6 ff2 fs0 fc0 sc1 ls0 ws0">二、模型建立<span class="_ _0"></span>与参数设置</div><div class="t m0 x1 h3 y7 ff5 fs1 fc0 sc0 ls0 ws0">; <span class="ff4">模型初始化</span></div><div class="t m0 x1 h3 y8 ff5 fs1 fc0 sc0 ls0 ws0">model new ; <span class="ff4">创建新模型</span></div><div class="t m0 x1 h3 y9 ff5 fs1 fc0 sc0 ls0 ws0">model large-strain off ; <span class="ff4">关闭大应变模式</span></div><div class="t m0 x1 h3 ya ff5 fs1 fc0 sc0 ls0 ws0">fish define preprocess() ; <span class="ff4">定义预处理函数</span></div><div class="t m0 x1 h3 yb ff5 fs1 fc0 sc0 ls0 ws0"> ... (<span class="ff4">其他初始化设置</span>) ... ; <span class="ff4">具体初始化代码根据实际情况编写</span></div><div class="t m0 x1 h4 yc ff5 fs1 fc0 sc0 ls0 ws0">end</div><div class="t m0 x1 h3 yd ff5 fs1 fc0 sc0 ls0 ws0">; <span class="ff4">颗粒材料属性设置</span></div><div class="t m0 x1 h3 ye ff5 fs1 fc0 sc0 ls0 ws0">zone cmodel assign mohr-coulomb ; <span class="ff4">土体材料模型选择摩尔</span>-<span class="ff4">库伦模型</span></div><div class="t m0 x1 h3 yf ff5 fs1 fc0 sc0 ls0 ws0">prop bulk-density=... ; <span class="ff4">设置土体密度</span></div><div class="t m0 x1 h3 y10 ff5 fs1 fc0 sc0 ls0 ws0">prop friction-angle=... ; <span class="ff4">设置摩擦角</span></div><div class="t m0 x1 h3 y11 ff5 fs1 fc0 sc0 ls0 ws0">prop cohesion=... ; <span class="ff4">设置粘聚力</span></div><div class="t m0 x1 h3 y12 ff5 fs1 fc0 sc0 ls0 ws0">; <span class="ff4">环形剪切箱设置(以圆形截面为例)</span></div><div class="t m0 x1 h3 y13 ff5 fs1 fc0 sc0 ls0 ws0">wall create circle radius=... ; <span class="ff4">创建环形剪切内圈和外圈</span></div><div class="t m0 x1 h3 y14 ff5 fs1 fc0 sc0 ls0 ws0">wall prop normal-damping=... ; <span class="ff4">设置法向阻尼以减少能量损失</span></div><div class="t m0 x1 h3 y15 ff5 fs1 fc0 sc0 ls0 ws0">wall prop shear-damping=... ; <span class="ff4">设置切向阻尼,使边界可滑动</span></div><div class="t m0 x1 h2 y16 ff2 fs0 fc0 sc1 ls0 ws0">三、建模全过<span class="_ _0"></span>程与<span class="ff1 sc0">FISH</span>函数编写</div><div class="t m0 x1 h2 y17 ff4 fs0 fc0 sc0 ls0 ws0">在<span class="ff3">PFC</span>中,通过<span class="ff3">FISH</span>语言可以编写各种函数来计算剪切应力、法向应力、样品体积变化以及能量等</div><div class="t m0 x1 h2 y18 ff4 fs0 fc0 sc0 ls0 ws0">。以下是一些关键<span class="ff3">FISH</span>函数的示例:</div><div class="t m0 x1 h3 y19 ff5 fs1 fc0 sc0 ls0 ws0">fish define shear_stress() ; <span class="ff4">定义剪切应力计算函数</span></div><div class="t m0 x1 h3 y1a ff5 fs1 fc0 sc0 ls0 ws0"> ... (<span class="ff4">计算剪切力并除以剪切面积</span>) ... ; </div><div class="t m0 x1 h3 y1b ff4 fs1 fc0 sc0 ls0 ws0">例如计算所有接触的切向力之和,除以截面积,获得剪切应力。</div><div class="t m0 x1 h4 y1c ff5 fs1 fc0 sc0 ls0 ws0">end</div><div class="t m0 x1 h3 y1d ff5 fs1 fc0 sc0 ls0 ws0">fish define normal_stress() ; <span class="ff4">定义法向应力计算函数</span></div><div class="t m0 x1 h3 y1e ff5 fs1 fc0 sc0 ls0 ws0"> ... (<span class="ff4">计算法向力并除以面积</span>) ... ; <span class="ff4">计算所有接触的法向力之和,除以面积,获得法向应力。</span></div><div class="t m0 x1 h4 y1f ff5 fs1 fc0 sc0 ls0 ws0">end</div><div class="t m0 x1 h3 y20 ff5 fs1 fc0 sc0 ls0 ws0">fish define sample_volume_change() ; <span class="ff4">定义样品体积变化计算函数</span></div><div class="t m0 x1 h3 y21 ff5 fs1 fc0 sc0 ls0 ws0"> ... (<span class="ff4">记录初始和当前颗粒填充体积</span>) ... ; <span class="ff4">通常需要追踪颗粒的数量和位置来计算体积变化。</span></div><div class="t m0 x1 h4 y22 ff5 fs1 fc0 sc0 ls0 ws0">end</div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>