中国机械工程 ›› 2026, Vol. 37 ›› Issue (10): 2652-2666.DOI: 10.3969/j.issn.1004-132X.2026.10.028
王映尧1(
), 叶显爵1, 张文强1, 陈爽1, 张跃飞1,2(
)
收稿日期:2025-04-17
出版日期:2026-10-25
发布日期:2026-11-10
通讯作者:
张跃飞
作者简介:王映尧,男,1999年生,硕士研究生。研究方向为高温金属材料使役条件与结构性能数值仿真。E-mail:22226018@zju.edu.cn基金资助:
WANG Yingyao1(
), YE Xianjue1, ZHANG Wenqiang1, CHEN Shuang1, ZHANG Yuefei1,2(
)
Received:2025-04-17
Online:2026-10-25
Published:2026-11-10
Contact:
ZHANG Yuefei
摘要:
通过流-热-结构顺序耦合仿真流程,结合晶体塑性有限元方法(CPFEM),探究热障涂层(TBC)与单晶次级取向对航空发动机叶片热-机械行为及微观塑性滑移的具体影响。结果表明:TBC可显著降低叶片温度,使热点冷却效率提高约30%,但在强对流区隔热效果减弱并伴随热应力重分布加剧局部应力集中;结构干涉会诱发主导滑移系(DSS)转变,尤其在气膜孔区域表现为滑移系竞争行为增强;TBC可使孔周区域滑移混合分布收缩,缓解材料剪切作用并增强统一分布特征;将通过解析弹性应力结果得到的DSS和对应最大分切应力(MRSS)用于衡量取向匹配度与塑性变形风险,发现气膜孔区域晶体取向导致MRSS差异可达32%;通过提出的“S₁-S₂-S₃”指标,结合晶体塑性分析可定量评估多轴应力下的滑移系优先级;低应力三轴度区域应力张量与晶格接近满足空间对称关系时易形成多滑移系竞争现象,而高应力三轴度促进单一滑移系主导。
中图分类号:
王映尧, 叶显爵, 张文强, 陈爽, 张跃飞. 镍基单晶涡轮叶片热应力分布与局部塑性行为多尺度模拟分析[J]. 中国机械工程, 2026, 37(10): 2652-2666.
WANG Yingyao, YE Xianjue, ZHANG Wenqiang, CHEN Shuang, ZHANG Yuefei. Thermal Stress Distribution and Local Plasticity Analysis of Nickel-based Single Crystal Turbine Blades via Multiscale Simulation[J]. China Mechanical Engineering, 2026, 37(10): 2652-2666.
| 序号 | 孔数目 | 孔半径/cm | 孔结构类型 |
|---|---|---|---|
| 1 | 22 | 0.061 | 轴向,扩散型孔 |
| 2 | 23 | 0.061 | 轴向,扩散型孔 |
| 3 | 12 | 0.048 | 倾斜圆孔(复合角默认25°) |
| 4 | 12 | 0.048 | 倾斜圆孔 |
| 5 | 12 | 0.048 | 倾斜圆孔 |
| 6 | 12 | 0.048 | 倾斜圆孔 |
| 7 | 12 | 0.048 | 倾斜圆孔 |
| 8 | 12 | 0.048 | 倾斜圆孔 |
| 9 | 12 | 0.048 | 倾斜圆孔 |
| 10 | 20 | 0.036 | 倾斜圆孔 |
| 11 | 19 | 0.061 | 倾斜圆孔,45° |
| 12 | 16 | 0.061 | 倾斜圆孔,45° |
| 13 | 16 | 0.048 | 轴向圆孔 |
| 14 | 18 | 0.055×0.155 | 劈缝(Slots) |
表1 孔形参数
Tab.1 Holes parameter
| 序号 | 孔数目 | 孔半径/cm | 孔结构类型 |
|---|---|---|---|
| 1 | 22 | 0.061 | 轴向,扩散型孔 |
| 2 | 23 | 0.061 | 轴向,扩散型孔 |
| 3 | 12 | 0.048 | 倾斜圆孔(复合角默认25°) |
| 4 | 12 | 0.048 | 倾斜圆孔 |
| 5 | 12 | 0.048 | 倾斜圆孔 |
| 6 | 12 | 0.048 | 倾斜圆孔 |
| 7 | 12 | 0.048 | 倾斜圆孔 |
| 8 | 12 | 0.048 | 倾斜圆孔 |
| 9 | 12 | 0.048 | 倾斜圆孔 |
| 10 | 20 | 0.036 | 倾斜圆孔 |
| 11 | 19 | 0.061 | 倾斜圆孔,45° |
| 12 | 16 | 0.061 | 倾斜圆孔,45° |
| 13 | 16 | 0.048 | 轴向圆孔 |
| 14 | 18 | 0.055×0.155 | 劈缝(Slots) |
| 工况 | 网格 数量/ | 最高 温度/ K | 最大温度误差/% | 平均 温度/ K | 平均温度误差/% | 平均 误差/ % |
|---|---|---|---|---|---|---|
| 无TBC | 16.8 | 961 | 869.5 | |||
| 7.0 | 977 | 1.66 | 876.1 | 0.76 | 0.82 | |
| 13.8 | 975 | 1.47 | 873.5 | 0.46 | 0.51 | |
| 15.8 | 960 | 0.10 | 870.5 | 0.12 | 0.16 | |
| 含TBC | 14.5 | 832 | 793.3 | |||
| 10.4 | 832 | 792.8 | 0.06 | 0.79 | ||
| 12.9 | 832 | 791.6 | 0.21 | 0.25 |
表2 网格敏感性分析
Tab.2 Mesh sensitivity analysis
| 工况 | 网格 数量/ | 最高 温度/ K | 最大温度误差/% | 平均 温度/ K | 平均温度误差/% | 平均 误差/ % |
|---|---|---|---|---|---|---|
| 无TBC | 16.8 | 961 | 869.5 | |||
| 7.0 | 977 | 1.66 | 876.1 | 0.76 | 0.82 | |
| 13.8 | 975 | 1.47 | 873.5 | 0.46 | 0.51 | |
| 15.8 | 960 | 0.10 | 870.5 | 0.12 | 0.16 | |
| 含TBC | 14.5 | 832 | 793.3 | |||
| 10.4 | 832 | 792.8 | 0.06 | 0.79 | ||
| 12.9 | 832 | 791.6 | 0.21 | 0.25 |
| 材料 | 物理量 | 拟合式 | 来源文献 |
|---|---|---|---|
理想 气体 | 6.00×10 | [ | |
| cₚ | 3.00×10 | [ | |
| CMSX-4 | 2.94×10 | [ | |
| cₚ | 9.36×10 | [ | |
| 8YSZ | 3.71×10 | [ | |
| cₚ | [ |
表3 温度相关材料物理属性参数(流热耦合部分)
Tab.3 Temperature-dependent thermophysical properties of materials(fluid-thermal coupling part)
| 材料 | 物理量 | 拟合式 | 来源文献 |
|---|---|---|---|
理想 气体 | 6.00×10 | [ | |
| cₚ | 3.00×10 | [ | |
| CMSX-4 | 2.94×10 | [ | |
| cₚ | 9.36×10 | [ | |
| 8YSZ | 3.71×10 | [ | |
| cₚ | [ |
| 位置 | 压力/质流速率 | 总温/K | 湍流度 |
|---|---|---|---|
| 主流入口 | pm,total=1.5 MPa | 1400 | 5% |
| 主流出口 | pm,static=0.9 MPa | 5% | |
| 冷却通道入口A | pc1,in=1.58 MPa | 700 | 5% |
| 冷却通道入口B | pc2,in=1.56 MPa | 700 | 5% |
| 冷却通道出口A | pc1,out=1.57 MPa | 5% | |
| 冷却通道出口B | pc2,out=1.55 MPa | 5% | |
| 内环、外环喷嘴 | Mc,in=1×10 | 700 | 5% |
表4 边界条件
Tab.4 Boundary condition specifications
| 位置 | 压力/质流速率 | 总温/K | 湍流度 |
|---|---|---|---|
| 主流入口 | pm,total=1.5 MPa | 1400 | 5% |
| 主流出口 | pm,static=0.9 MPa | 5% | |
| 冷却通道入口A | pc1,in=1.58 MPa | 700 | 5% |
| 冷却通道入口B | pc2,in=1.56 MPa | 700 | 5% |
| 冷却通道出口A | pc1,out=1.57 MPa | 5% | |
| 冷却通道出口B | pc2,out=1.55 MPa | 5% | |
| 内环、外环喷嘴 | Mc,in=1×10 | 700 | 5% |
| 温度/℃ | 弹性常数C11/GPa | 弹性常数C12/GPa | 弹性常数C44/GPa | 热膨胀系数/(10-6K-1) |
|---|---|---|---|---|
| 20 | 184.6 | 87.8 | 126.0 | 14.8 |
| 100 | 190.0 | 95.6 | 123.0 | — |
| 200 | 182.0 | 90.4 | 120.0 | 15.2 |
| 300 | 179.0 | 89.8 | 117.0 | — |
| 400 | 176.0 | 89.2 | 114.0 | 15.6 |
| 500 | 166.0 | 81.1 | 111.0 | — |
| 600 | 167.1 | 85.7 | 108.0 | 16.2 |
| 700 | 165.8 | 87.8 | 105.0 | — |
| 800 | 153.7 | 79.5 | 101.0 | 16.9 |
| 900 | 145.2 | 75.8 | 96.8 | — |
| 1000 | 133.9 | 70.3 | 92.0 | 17.5 |
| 1100 | 117.0 | 60.2 | 86.5 | 17.6 |
表5 第二代单晶高温合金的温度依赖性弹性常数[26]和热膨胀系数[27]
Tab.5 Temperature-dependent elastic constants[26] and thermal expansion coefficient[27] of second-generation single crystal superalloys
| 温度/℃ | 弹性常数C11/GPa | 弹性常数C12/GPa | 弹性常数C44/GPa | 热膨胀系数/(10-6K-1) |
|---|---|---|---|---|
| 20 | 184.6 | 87.8 | 126.0 | 14.8 |
| 100 | 190.0 | 95.6 | 123.0 | — |
| 200 | 182.0 | 90.4 | 120.0 | 15.2 |
| 300 | 179.0 | 89.8 | 117.0 | — |
| 400 | 176.0 | 89.2 | 114.0 | 15.6 |
| 500 | 166.0 | 81.1 | 111.0 | — |
| 600 | 167.1 | 85.7 | 108.0 | 16.2 |
| 700 | 165.8 | 87.8 | 105.0 | — |
| 800 | 153.7 | 79.5 | 101.0 | 16.9 |
| 900 | 145.2 | 75.8 | 96.8 | — |
| 1000 | 133.9 | 70.3 | 92.0 | 17.5 |
| 1100 | 117.0 | 60.2 | 86.5 | 17.6 |
| θ/℃ | |||||||
|---|---|---|---|---|---|---|---|
| 650 | 300 | 480 | 360 | 0.0001 | 1× | 1.9 | 1.9 |
| 750 | 450 | 490 | 370 | 0.0001 | 1× | 1.9 | 1.9 |
| 850 | 250 | 440 | 360 | 0.0001 | 1× | 1.9 | 1.9 |
表 6 塑性流变及潜硬化行为拟合参数
Tab. 6 Fitting parameters for plastic flow and latent hardening behavior
| θ/℃ | |||||||
|---|---|---|---|---|---|---|---|
| 650 | 300 | 480 | 360 | 0.0001 | 1× | 1.9 | 1.9 |
| 750 | 450 | 490 | 370 | 0.0001 | 1× | 1.9 | 1.9 |
| 850 | 250 | 440 | 360 | 0.0001 | 1× | 1.9 | 1.9 |
| 采样点(SP) | 采样位置 | 应力类型 | 应力集中 因子Kt | MRSS/MPa | DSS | 潜在滑移系统及 MRSS/CRSS | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| 无TBC | TBC | 无TBC | TBC | 无TBC | TBC | 无TBC | TBC | |||
| 1 | 气膜孔/叶尖中弦 | 热载荷/结构应力集中 | 4.5 | 6.1 | 516.0 | 537.0 | 9 | 5 | 9(1.290) 12(1.090) | 9(1.342) 12(1.339) |
| 2 | 叶尖中弦 | 热载荷主导 | 3.9 | 4.0 | 420.0 | 338.0 | 9 | 10 | 9(1.049) | |
| 3 | 中温区 | 压缩应力主导 | 0.6 | 0.6 | 84.2 | 80.3 | 1 | 10 | ||
| 4 | 气膜孔/轮毂中弦 | 压缩/结构应力集中 | 3.6 | 2.5 | 398.0 | 227.0 | 9 | 1 | ||
| 5 | 轮毂中弦 | 压缩应力主导 | 3.8 | 3.4 | 346.0 | 258.0 | 9 | 12 | ||
| 6 | 叶尖 | 压缩应力主导 | 2.8 | 2.6 | 519.0 | 408.0 | 9 | 9 | 9(1.298) | 9(1.021) |
| 7 | 气膜孔/内部圆角 | 压缩/结构应力集中 | 3.9 | 3.6 | 932.0 | 732.0 | 4 | 4 | 4(2.331) 6(1.788) 9(1.734) | 4(1.832) 6(1.469) |
| 8 | 孔间/内部圆角 | 压缩/结构应力干涉 | 1.8 | 1.5 | 172.0 | 148.0 | 4 | 4 | ||
| 9 | 气膜孔/前缘 | 压缩/结构应力集中 | 3.2 | 2.9 | 227.0 | 175.0 | 10 | 9 | ||
| 10 | 孔间/前缘 | 压缩/结构应力干涉 | 2.1 | 1.9 | 193.0 | 142.0 | 2 | 3 | ||
表7 不同TBC条件下热结构应力分布和材料响应数据采样统计
Tab.7 Statistical data of thermal-structural stress distribution and material response under different TBC conditions
| 采样点(SP) | 采样位置 | 应力类型 | 应力集中 因子Kt | MRSS/MPa | DSS | 潜在滑移系统及 MRSS/CRSS | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| 无TBC | TBC | 无TBC | TBC | 无TBC | TBC | 无TBC | TBC | |||
| 1 | 气膜孔/叶尖中弦 | 热载荷/结构应力集中 | 4.5 | 6.1 | 516.0 | 537.0 | 9 | 5 | 9(1.290) 12(1.090) | 9(1.342) 12(1.339) |
| 2 | 叶尖中弦 | 热载荷主导 | 3.9 | 4.0 | 420.0 | 338.0 | 9 | 10 | 9(1.049) | |
| 3 | 中温区 | 压缩应力主导 | 0.6 | 0.6 | 84.2 | 80.3 | 1 | 10 | ||
| 4 | 气膜孔/轮毂中弦 | 压缩/结构应力集中 | 3.6 | 2.5 | 398.0 | 227.0 | 9 | 1 | ||
| 5 | 轮毂中弦 | 压缩应力主导 | 3.8 | 3.4 | 346.0 | 258.0 | 9 | 12 | ||
| 6 | 叶尖 | 压缩应力主导 | 2.8 | 2.6 | 519.0 | 408.0 | 9 | 9 | 9(1.298) | 9(1.021) |
| 7 | 气膜孔/内部圆角 | 压缩/结构应力集中 | 3.9 | 3.6 | 932.0 | 732.0 | 4 | 4 | 4(2.331) 6(1.788) 9(1.734) | 4(1.832) 6(1.469) |
| 8 | 孔间/内部圆角 | 压缩/结构应力干涉 | 1.8 | 1.5 | 172.0 | 148.0 | 4 | 4 | ||
| 9 | 气膜孔/前缘 | 压缩/结构应力集中 | 3.2 | 2.9 | 227.0 | 175.0 | 10 | 9 | ||
| 10 | 孔间/前缘 | 压缩/结构应力干涉 | 2.1 | 1.9 | 193.0 | 142.0 | 2 | 3 | ||
无TBC +ORI1 | 无TBC +ORI2 | 无TBC +ORI3 | 含TBC +ORI1 | 含TBC +ORI2 | 含TBC +ORI3 |
|---|---|---|---|---|---|
| 389.7 | 419.6 | 388.3 | 333.2 | 361.4 | 333.9 |
表 8 不同配置下叶身体积平均等效应力 (MPa)
Tab. 8 Volume-averaged equivalent stress in the blade body under different configurations
无TBC +ORI1 | 无TBC +ORI2 | 无TBC +ORI3 | 含TBC +ORI1 | 含TBC +ORI2 | 含TBC +ORI3 |
|---|---|---|---|---|---|
| 389.7 | 419.6 | 388.3 | 333.2 | 361.4 | 333.9 |
| 采样点 | 采样位置 | 应力集中因子Kt | MRSS/MPa | DSS | 潜在激活滑移系 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ORI1 | ORI2 | ORI3 | ORI1 | ORI2 | ORI3 | ORI1 | ORI2 | ORI3 | ORI1 | ORI2 | ORI3 | ||
| 1 | 气膜孔/叶尖中弦 | 4.5 | 3.9 | 3.4 | 516.0 | 709.0 | 506.0 | 9 | 5 | 8 | 9(1.290) 12(1.090) | 5(1.503) 3(1.291) | 8(1.264) 3(1.028) |
| 2 | 叶尖中弦 | 3.9 | 3.1 | 2.3 | 420.0 | 541.0 | 315.0 | 9 | 5 | 8 | 9(1.049) | 5(1.352) 3(1.325) | |
| 3 | 中温区 | 0.6 | 0.7 | 0.7 | 84.2 | 138.0 | 111.0 | 1 | 8 | 6 | |||
| 4 | 气膜孔/轮毂中弦 | 3.6 | 3.5 | 2.9 | 398.0 | 553.0 | 442.0 | 9 | 5 | 2 | 5(1.381) 12(1.357) 6(1.204) | 2(1.104) | |
| 5 | 轮毂中弦 | 3.8 | 3 | 3.5 | 346.0 | 446.0 | 406.0 | 9 | 3 | 8 | 3(1.115) 5(1.066) | 8(1.014) | |
| 6 | 叶尖 | 2.8 | 2.5 | 2 | 519.0 | 519.0 | 485.0 | 9 | 10 | 2 | 9(1.298) | 10(1.299) 6(1.002) | 2(1.214) |
| 7 | 气膜孔/内部圆角 | 3.9 | 3.7 | 2.7 | 932.0 | 1370.0 | 691.0 | 4 | 8 | 5 | 4(2.331) 6(1.788) 9(1.734) | 8(3.426) 12(3.039) 3(2.206) | 5(1.727) 2(1.702) 12(1.408) |
| 8 | 孔间/内部圆角 | 1.8 | 1.4 | 1.2 | 172.0 | 294.0 | 179.0 | 4 | 8 | 11 | |||
| 9 | 气膜孔/前缘 | 3.2 | 2.8 | 3.2 | 227.0 | 376.0 | 364.0 | 10 | 5 | 8 | |||
| 10 | 孔间/前缘 | 2.1 | 2 | 2.4 | 193.0 | 252.0 | 266.0 | 2 | 5 | 8 | |||
表9 不同材料取向条件下热结构应力分布和材料响应数据采样统计
Tab.9 Statistical sampling of thermo-structural stress distribution and material response data under different material orientation conditions
| 采样点 | 采样位置 | 应力集中因子Kt | MRSS/MPa | DSS | 潜在激活滑移系 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ORI1 | ORI2 | ORI3 | ORI1 | ORI2 | ORI3 | ORI1 | ORI2 | ORI3 | ORI1 | ORI2 | ORI3 | ||
| 1 | 气膜孔/叶尖中弦 | 4.5 | 3.9 | 3.4 | 516.0 | 709.0 | 506.0 | 9 | 5 | 8 | 9(1.290) 12(1.090) | 5(1.503) 3(1.291) | 8(1.264) 3(1.028) |
| 2 | 叶尖中弦 | 3.9 | 3.1 | 2.3 | 420.0 | 541.0 | 315.0 | 9 | 5 | 8 | 9(1.049) | 5(1.352) 3(1.325) | |
| 3 | 中温区 | 0.6 | 0.7 | 0.7 | 84.2 | 138.0 | 111.0 | 1 | 8 | 6 | |||
| 4 | 气膜孔/轮毂中弦 | 3.6 | 3.5 | 2.9 | 398.0 | 553.0 | 442.0 | 9 | 5 | 2 | 5(1.381) 12(1.357) 6(1.204) | 2(1.104) | |
| 5 | 轮毂中弦 | 3.8 | 3 | 3.5 | 346.0 | 446.0 | 406.0 | 9 | 3 | 8 | 3(1.115) 5(1.066) | 8(1.014) | |
| 6 | 叶尖 | 2.8 | 2.5 | 2 | 519.0 | 519.0 | 485.0 | 9 | 10 | 2 | 9(1.298) | 10(1.299) 6(1.002) | 2(1.214) |
| 7 | 气膜孔/内部圆角 | 3.9 | 3.7 | 2.7 | 932.0 | 1370.0 | 691.0 | 4 | 8 | 5 | 4(2.331) 6(1.788) 9(1.734) | 8(3.426) 12(3.039) 3(2.206) | 5(1.727) 2(1.702) 12(1.408) |
| 8 | 孔间/内部圆角 | 1.8 | 1.4 | 1.2 | 172.0 | 294.0 | 179.0 | 4 | 8 | 11 | |||
| 9 | 气膜孔/前缘 | 3.2 | 2.8 | 3.2 | 227.0 | 376.0 | 364.0 | 10 | 5 | 8 | |||
| 10 | 孔间/前缘 | 2.1 | 2 | 2.4 | 193.0 | 252.0 | 266.0 | 2 | 5 | 8 | |||
| 采样点及条件设置 | 位置 | 应力状态 | 应力 三轴度 | 材料响应 | DSS/MRSS | 滑移系激活信息 (滑移系编号; | 累积塑性变形量 |
|---|---|---|---|---|---|---|---|
| SP1-ORI1-NoTBC | 气膜孔干涉区 | 介于单轴压缩、纯剪切 | 剪切主导 | 11/234.63 | 11(0.642/0.509/0.424/0.525) 2(0.580/0.460/0.373/0.470) | <1×10 | |
| SP1-ORI2-NoTBC | 气膜孔干涉区 | 介于单轴压缩、纯剪切 | 剪切主导 | 4/233.78 | 4(0.578/0.461/0.387/0.475) 9(0.554/0.442/0.376/0.457) | <1×10 | |
| SP1-ORI3-NoTBC | 气膜孔干涉区 | 介于单轴压缩、纯剪切 | 剪切主导 | 6/231.55 | 6(0.582/0.481/0.438/0.500) 4(0.582/0.481/0.425/0.496) | <1×10 | |
| SP1-ORI1-TBC | 气膜孔干涉区 | 介于单轴压缩、纯剪切 | 剪切主导 | 11/163.23 | 11(0.587/0.496/0.423/0.505) 2(0.556/0.470/0.392/0.473) | <1×10 | |
| SP1-ORI2-TBC | 气膜孔干涉区 | 介于单轴压缩、纯剪切 | 剪切主导 | 4/173.76 | 4(0.570/0.468/0.400/0.479) 9(0.569/0.467/0.403/0.479) | <1×10 | |
| SP1-ORI3-TBC | 气膜孔干涉区 | 介于单轴压缩、纯剪切 | 剪切主导 | 4/168.23 | 4(0.561/0.480∥0.429/0.490) 6(0.553/0.473/0.436/0.487) | <1×10 | |
| SP2-ORI3-NoTBC | 前缘侧 | 介于单轴、双轴压缩 | 剪切主导 | 1/158.48 | 1(0.467/0.517/0.452/0.479) | <1×10 | |
| SP3-ORI1-NoTBC | 孔周 | 多轴压缩 | 压缩主导 | 1/92.14 | 1(0.360/0.478/0.436/0.424) 3(0.327/0.435/0.352/0.371) | <1×10 | |
| SP4-ORI1-NoTBC | 孔周 | 多轴压缩 | 压缩主导 | 6/104.58 | 6(0.388/0.498/0.484/0.456) 10(0.349/0.448/0.443/0.413) | <1×10 | |
| SP5-ORI1-NoTBC | 气膜孔应力 集中处 | 介于单轴、双轴拉伸 | 0.47 | 拉伸主导 | 3/536.51 | 3(0.352/0.394/0.467/0.404) 8(0.302/0.339/0.353/0.331) | 2.6×10 |
| SP6-ORI1-NoTBC | 气膜孔应力 集中处 | 接近单轴压缩 | 压缩主导 | 6/564.70 | 6(0.406/0.411/0.419/0.412) 5(0.397/0.403/0.428/0.409) | 8.45×10 |
表10 应力状态和滑移变形信息采样
Tab.10 Stress state and slip deformation indices sampling
| 采样点及条件设置 | 位置 | 应力状态 | 应力 三轴度 | 材料响应 | DSS/MRSS | 滑移系激活信息 (滑移系编号; | 累积塑性变形量 |
|---|---|---|---|---|---|---|---|
| SP1-ORI1-NoTBC | 气膜孔干涉区 | 介于单轴压缩、纯剪切 | 剪切主导 | 11/234.63 | 11(0.642/0.509/0.424/0.525) 2(0.580/0.460/0.373/0.470) | <1×10 | |
| SP1-ORI2-NoTBC | 气膜孔干涉区 | 介于单轴压缩、纯剪切 | 剪切主导 | 4/233.78 | 4(0.578/0.461/0.387/0.475) 9(0.554/0.442/0.376/0.457) | <1×10 | |
| SP1-ORI3-NoTBC | 气膜孔干涉区 | 介于单轴压缩、纯剪切 | 剪切主导 | 6/231.55 | 6(0.582/0.481/0.438/0.500) 4(0.582/0.481/0.425/0.496) | <1×10 | |
| SP1-ORI1-TBC | 气膜孔干涉区 | 介于单轴压缩、纯剪切 | 剪切主导 | 11/163.23 | 11(0.587/0.496/0.423/0.505) 2(0.556/0.470/0.392/0.473) | <1×10 | |
| SP1-ORI2-TBC | 气膜孔干涉区 | 介于单轴压缩、纯剪切 | 剪切主导 | 4/173.76 | 4(0.570/0.468/0.400/0.479) 9(0.569/0.467/0.403/0.479) | <1×10 | |
| SP1-ORI3-TBC | 气膜孔干涉区 | 介于单轴压缩、纯剪切 | 剪切主导 | 4/168.23 | 4(0.561/0.480∥0.429/0.490) 6(0.553/0.473/0.436/0.487) | <1×10 | |
| SP2-ORI3-NoTBC | 前缘侧 | 介于单轴、双轴压缩 | 剪切主导 | 1/158.48 | 1(0.467/0.517/0.452/0.479) | <1×10 | |
| SP3-ORI1-NoTBC | 孔周 | 多轴压缩 | 压缩主导 | 1/92.14 | 1(0.360/0.478/0.436/0.424) 3(0.327/0.435/0.352/0.371) | <1×10 | |
| SP4-ORI1-NoTBC | 孔周 | 多轴压缩 | 压缩主导 | 6/104.58 | 6(0.388/0.498/0.484/0.456) 10(0.349/0.448/0.443/0.413) | <1×10 | |
| SP5-ORI1-NoTBC | 气膜孔应力 集中处 | 介于单轴、双轴拉伸 | 0.47 | 拉伸主导 | 3/536.51 | 3(0.352/0.394/0.467/0.404) 8(0.302/0.339/0.353/0.331) | 2.6×10 |
| SP6-ORI1-NoTBC | 气膜孔应力 集中处 | 接近单轴压缩 | 压缩主导 | 6/564.70 | 6(0.406/0.411/0.419/0.412) 5(0.397/0.403/0.428/0.409) | 8.45×10 |
图20 不同取向设置和TBC条件下各取样点处von Mises应力分布
Fig.20 von Mises stress distribution at each sampling point under different orientation settings and TBC conditions
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