Interpreting the radiative properties of advanced high strength steel using the geometric optics ray-tracing approximation

Kaihsiang Lin; Fatima K. Suleiman; Kyle J. Daun

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Interpreting the radiative properties of advanced high strength steel using the geometric optics ray-tracing approximation

机译：用几何光学射线跟踪近似解释先进高强度钢的辐射性能

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摘要

This study investigates the relationship between surface topography and radiative properties of advanced high strength steel (AHSS) alloys using the geometric optics approximation (GOA) with ray tracing. Five AHSS coupons with different alloy compositions and surface topographies are investigated. The directional-hemispherical and specular reflectance of samples are measured using a UV-Vis-NIR spec-trophotometer (0.25-2.5 μm) and two FTIR spectrometers (2.5-20 μm), while surface profiles used in the ray tracing model are obtained using an optical profilometer. Predictions of directional-hemispherical reflectance are consistent with the experimental data when the surface parameters and incident wavelengths are within the valid GOA domain. Reflectance predictions in the specular direction are also in line with the measurements when the roughness parameters are in the specular approximation domain.

机译：本研究研究了使用射线跟踪的几何光学逼近（GOA）的高强度钢（AHSS）合金的表面形貌和高强度钢（AHSS）合金的辐射性能的关系。研究了具有不同合金组合物和表面拓扑的五个AHSS优惠券。使用UV-Vis-Nir Spec-Thotometer（0.25-2.5μm）和两个FTIR光谱仪（2.5-20μm）测量样品的定向 - 半球和镜面反射率，同时使用光线跟踪模型中使用的表面轮廓光学轮廓仪。当表面参数和入射波长在有效的GOA域内时，定向半球反射率的预测与实验数据一致。当粗糙度参数处于镜面近似域时，镜面方向上的反射率预测也符合测量。

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来源
《International Journal of Heat and Mass Transfer》 |2021年第9期|121429.1-121429.13|共13页
作者
Kaihsiang Lin; Fatima K. Suleiman; Kyle J. Daun;
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作者单位

University of Waterloo. 200 University Ave. W Waterloo Ontario N2L 3G1 Canada;

University of Waterloo. 200 University Ave. W Waterloo Ontario N2L 3G1 Canada;

University of Waterloo. 200 University Ave. W Waterloo Ontario N2L 3G1 Canada;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Advanced high strength steel; Spectral emissivity; EM wave scattering, Geometric optics; approximation; Pyrometry;

机译：先进的高强度钢;光谱发射率;EM波散射;几何光学;近似;热尺寸;

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1. An application of Spectral line-based weighted sum of grey gases (SLW) model with geometric optics approximation for radiative heat transfer in 3-D participating media [J] . Nimeti Doner, Nevin Selcuk Applied thermal engineering: Design, processes, equipment, economics . 2013,第1期

机译：基于谱线的灰气体加权和（SLW）模型的几何光学近似在3-D参与介质中辐射热传递中的应用
2. On the Geometrical Optics (Hagfors'' Law) and Physical Optics Approximations for Scattering From Exponentially Correlated Surfaces [J] . Johnson J. T., Warnick K. F., Xu P. IEEE Transactions on Geoscience and Remote Sensing. . 2007,第8期

机译：从指数相关表面散射的几何光学（Hagfors定律）和物理光学近似
3. Radiative properties of densely packed spheres in semitransparent media: A new geometric optics approach [J] . Randrianalisoa J, Baillis D Journal of Quantitative Spectroscopy & Radiative Transfer . 2010,第10期

机译：半透明介质中密集堆积球体的辐射特性：一种新的几何光学方法
4. INTERPRETING THE RADIATIVE PROPERTIES OF ADVANCED HIGH STRENGTH STEELS USING THE KIRCHHOFF-HELMHOLTZ MODEL [C] . Kaihsiang Lin, Kyle J. Daun International Symposium on Radiative Transfer . 2019

机译：用Kirchhoff-Helmholtz模型解释先进高强度钢的辐射性能
5. Development of high strength high toughness third generation advanced high strength steels [D] . Martis, Codrick John 2015

机译：开发高强度高韧性第三代高强度高强度钢
6. A hybrid method for X-ray optics simulation: combining geometric ray-tracing and wavefront propagation [O] . Xianbo Shi, Ruben Reininger, Manuel Sanchez del Rio, -1

机译：X射线光学模拟的混合方法：结合几何射线跟踪和波前传播
7. Mechanical properties of various concrete after high temperature exposure Mechanical property of various types of concrete after high temperature exposure is investigated. Considering compressive strength requirement for a vertical element in high rise building, concrete specimens with various design strengths of 35, 80, 100, and 150 MPa were tested. Particularly, the influence of incorporated steel fiber on fire resistance is of interest in this study. Experimental results show that the fire resistance depends on the design strength and steel fiber content. Normal strength concrete (NSC) of a design strength of 35 MPa or high performance concrete (HPC) of 80-100 MPa does not spall when exposed to 100-400 °C of temperature. However, an explosive spalling occurs at 300 °C when the HPCs contain 1 vol. of steel fiber. Ultra-high performance concrete (UHPC) of a design strength of 150 MPa and 1.5 vol. of steel fiber also shows dramatic spalling at 300 °C. The experimental results found in this study can contribute to a better understanding of the behaviors of HPC and UHPC under fire and the role of steel fiber on the fire resistance. [O] . 2017

机译：研究了高温暴露后各种混凝土高温曝光机械性能各种混凝土的机械性能。考虑到高层建筑中垂直元件的抗压强度要求，测试了35,80,100和150MPa各种设计强度的混凝土试样。特别是，在这项研究中，掺入钢纤维对耐火性的影响。实验结果表明，耐火性取决于设计强度和钢纤维含量。在暴露于100-400°C的温度时，80-100MPa的设计强度为35MPa或高性能混凝土（HPC）的正常强度混凝土（NSC）不会击落。然而，当HPC含有1体积的钢纤维的百分比时，爆炸性剥落发生在300℃。超高性能混凝土（UHPC）的设计强度为150 MPa和1.5 Vol。钢纤维的百分比也显示出300℃的剧烈剥落。本研究中发现的实验结果可以有助于更好地了解在火灾中的HPC和UHPC的行为以及钢纤维对耐火性的作用。

Interpreting the radiative properties of advanced high strength steel using the geometric optics ray-tracing approximation

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